$BK
Bank of New York Mellon Corp Stock $bk

$bk Overview Financials Valuation SEC Filings Company Website

2024 Q3 Form 10-Q Financial Statement

#000139077724000133 Filed on November 01, 2024

Income Statement

Concept	2024 Q3
Revenue	$6.652B
YoY Change	20.53%
Cost Of Revenue
YoY Change
Gross Profit
YoY Change
Gross Profit Margin
Selling, General & Admin
YoY Change
% of Gross Profit
Research & Development
YoY Change
% of Gross Profit
Depreciation & Amortization	$451.0M
YoY Change	15.05%
% of Gross Profit
Operating Expenses
YoY Change
Operating Profit
YoY Change
Interest Expense
YoY Change
% of Operating Profit
Other Income/Expense, Net
YoY Change
Pretax Income	$1.525B
YoY Change	18.95%
Income Tax	$336.0M
% Of Pretax Income	22.03%
Net Earnings	$1.110B
YoY Change	6.94%
Net Earnings / Revenue	16.69%
Basic Earnings Per Share	$1.51
Diluted Earnings Per Share	$1.50
COMMON SHARES
Basic Shares Outstanding	736.5M shares
Diluted Shares Outstanding	742.1M shares

Balance Sheet

Concept	2024 Q3
SHORT-TERM ASSETS
Cash & Short-Term Investments
YoY Change
Cash & Equivalents	$6.234B
Short-Term Investments
Other Short-Term Assets
YoY Change
Inventory
Prepaid Expenses
Receivables
Other Receivables
Total Short-Term Assets
YoY Change
LONG-TERM ASSETS
Property, Plant & Equipment	$3.380B
YoY Change	4.51%
Goodwill	$16.34B
YoY Change	1.11%
Intangibles	$2.824B
YoY Change	-1.22%
Long-Term Investments	$937.0M
YoY Change	7.33%
Other Assets	$2.128B
YoY Change	9.52%
Total Long-Term Assets
YoY Change
TOTAL ASSETS
Total Short-Term Assets
Total Long-Term Assets
Total Assets	$427.5B
YoY Change	5.48%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable	$19.74B
YoY Change	13.19%
Accrued Expenses
YoY Change
Deferred Revenue
YoY Change
Short-Term Debt	$14.88B
YoY Change	0.7%
Long-Term Debt Due
YoY Change
Total Short-Term Liabilities	$39.75B
YoY Change	5.73%
LONG-TERM LIABILITIES
Long-Term Debt	$33.60B
YoY Change	12.25%
Other Long-Term Liabilities	$15.28B
YoY Change	-20.07%
Total Long-Term Liabilities	$48.88B
YoY Change	-0.35%
TOTAL LIABILITIES
Total Short-Term Liabilities	$39.75B
Total Long-Term Liabilities	$48.88B
Total Liabilities	$385.5B
YoY Change	5.86%
SHAREHOLDERS EQUITY
Retained Earnings	$41.76B
YoY Change	4.86%
Common Stock
YoY Change
Preferred Stock
YoY Change
Treasury Stock (at cost)	$29.48B
YoY Change	10.44%
Treasury Stock Shares
Shareholders Equity	$41.99B
YoY Change
Total Liabilities & Shareholders Equity	$427.5B
YoY Change	5.48%

Cashflow Statement

Concept	2024 Q3
OPERATING ACTIVITIES
Net Income	$1.110B
YoY Change	6.94%
Depreciation, Depletion And Amortization	$451.0M
YoY Change	15.05%
Cash From Operating Activities	-$312.0M
YoY Change	-106.19%
INVESTING ACTIVITIES
Capital Expenditures	$375.0M
YoY Change	11.61%
Acquisitions
YoY Change
Other Investing Activities	$10.58B
YoY Change	-49.54%
Cash From Investing Activities	$10.20B
YoY Change	-50.54%
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net
YoY Change
Debt Paid & Issued, Net
YoY Change
Cash From Financing Activities	-9.424B
YoY Change	-65.46%
NET CHANGE
Cash From Operating Activities	-312.0M
Cash From Investing Activities	10.20B
Cash From Financing Activities	-9.424B
Net Change In Cash	468.0M
YoY Change	-128.96%
FREE CASH FLOW
Cash From Operating Activities	-$312.0M
Capital Expenditures	$375.0M
Free Cash Flow	-$687.0M
YoY Change	-114.6%

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value	Unit
	dei	Amendment Flag AmendmentFlag	false
	dei	Document Fiscal Period Focus DocumentFiscalPeriodFocus	Q3
	dei	Document Transition Report DocumentTransitionReport	false
	dei	Entity Address Address Line1 EntityAddressAddressLine1	240 Greenwich Street
	dei	Entity Address City Or Town EntityAddressCityOrTown	New York
	dei	Entity Address State Or Province EntityAddressStateOrProvince	NY
	dei	Entity Address Postal Zip Code EntityAddressPostalZipCode	10286
	dei	Entity Current Reporting Status EntityCurrentReportingStatus	Yes
	dei	Entity Filer Category EntityFilerCategory	Large Accelerated Filer
	dei	Entity Small Business EntitySmallBusiness	false
	dei	Entity Emerging Growth Company EntityEmergingGrowthCompany	false
	dei	Entity Shell Company EntityShellCompany	false
CY2024Q3	dei	Entity Common Stock Shares Outstanding EntityCommonStockSharesOutstanding	727078320	shares
CY2024Q3	bk	Securities Servicing And Treasury Services Fees SecuritiesServicingAndTreasuryServicesFees	2344000000	usd
CY2024Q2	bk	Securities Servicing And Treasury Services Fees SecuritiesServicingAndTreasuryServicesFees	2359000000	usd
CY2023Q3	bk	Securities Servicing And Treasury Services Fees SecuritiesServicingAndTreasuryServicesFees	2230000000	usd
	bk	Securities Servicing And Treasury Services Fees SecuritiesServicingAndTreasuryServicesFees	6981000000	usd
	bk	Securities Servicing And Treasury Services Fees SecuritiesServicingAndTreasuryServicesFees	6601000000	usd
CY2024Q3	bk	Investment Managementand Performance Fees InvestmentManagementandPerformanceFees	794000000	usd
CY2024Q2	bk	Investment Managementand Performance Fees InvestmentManagementandPerformanceFees	761000000	usd
CY2023Q3	bk	Investment Managementand Performance Fees InvestmentManagementandPerformanceFees	777000000	usd
	bk	Investment Managementand Performance Fees InvestmentManagementandPerformanceFees	2331000000	usd
	bk	Investment Managementand Performance Fees InvestmentManagementandPerformanceFees	2315000000	usd
CY2024Q3	bk	Foreign Exchange Revenue ForeignExchangeRevenue	175000000	usd
CY2024Q2	bk	Foreign Exchange Revenue ForeignExchangeRevenue	184000000	usd
CY2023Q3	bk	Foreign Exchange Revenue ForeignExchangeRevenue	154000000	usd
	bk	Foreign Exchange Revenue ForeignExchangeRevenue	511000000	usd
	bk	Foreign Exchange Revenue ForeignExchangeRevenue	488000000	usd
CY2023Q3	bk	Distribution And Servicing DistributionAndServicing	39000000	usd
	bk	Distribution And Servicing DistributionAndServicing	121000000	usd
	bk	Distribution And Servicing DistributionAndServicing	107000000	usd
CY2024Q3	bk	Total Fee Revenue TotalFeeRevenue	3404000000	usd
CY2024Q2	bk	Total Fee Revenue TotalFeeRevenue	3398000000	usd
CY2024Q2	us-gaap	Interest And Dividend Income Operating InterestAndDividendIncomeOperating	6392000000	usd
CY2023Q3	us-gaap	Interest And Dividend Income Operating InterestAndDividendIncomeOperating	5519000000	usd
CY2024Q3	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	1048000000	usd
CY2024Q2	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	1030000000	usd
CY2023Q3	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	1016000000	usd
	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	3118000000	usd
	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	3244000000	usd
CY2024Q3	bk	Total Revenues Including Revenue Generated By Variable Interest Entities TotalRevenuesIncludingRevenueGeneratedByVariableInterestEntities	4648000000	usd
CY2024Q2	bk	Total Revenues Including Revenue Generated By Variable Interest Entities TotalRevenuesIncludingRevenueGeneratedByVariableInterestEntities	4597000000	usd
CY2023Q3	bk	Total Revenues Including Revenue Generated By Variable Interest Entities TotalRevenuesIncludingRevenueGeneratedByVariableInterestEntities	4420000000	usd
	us-gaap	Provision For Loan Lease And Other Losses ProvisionForLoanLeaseAndOtherLosses	50000000	usd
	us-gaap	Provision For Loan Lease And Other Losses ProvisionForLoanLeaseAndOtherLosses	35000000	usd
CY2024Q3	us-gaap	Labor And Related Expense LaborAndRelatedExpense	1736000000	usd
CY2024Q2	us-gaap	Labor And Related Expense LaborAndRelatedExpense	1720000000	usd
CY2023Q3	us-gaap	Labor And Related Expense LaborAndRelatedExpense	1755000000	usd
	us-gaap	Labor And Related Expense LaborAndRelatedExpense	5313000000	usd
	us-gaap	Labor And Related Expense LaborAndRelatedExpense	5264000000	usd
CY2024Q3	us-gaap	Information Technology And Data Processing InformationTechnologyAndDataProcessing	491000000	usd
CY2024Q2	us-gaap	Information Technology And Data Processing InformationTechnologyAndDataProcessing	476000000	usd
CY2023Q3	us-gaap	Information Technology And Data Processing InformationTechnologyAndDataProcessing	452000000	usd
	us-gaap	Information Technology And Data Processing InformationTechnologyAndDataProcessing	1442000000	usd
	us-gaap	Information Technology And Data Processing InformationTechnologyAndDataProcessing	1331000000	usd
CY2024Q3	us-gaap	Professional Fees ProfessionalFees	370000000	usd
CY2024Q2	us-gaap	Professional Fees ProfessionalFees	374000000	usd
CY2023Q3	us-gaap	Professional Fees ProfessionalFees	368000000	usd
	us-gaap	Professional Fees ProfessionalFees	1093000000	usd
	us-gaap	Professional Fees ProfessionalFees	1121000000	usd
CY2024Q3	us-gaap	Occupancy Net OccupancyNet	130000000	usd
CY2024Q2	us-gaap	Occupancy Net OccupancyNet	134000000	usd
CY2023Q3	us-gaap	Occupancy Net OccupancyNet	140000000	usd
	us-gaap	Occupancy Net OccupancyNet	388000000	usd
	us-gaap	Occupancy Net OccupancyNet	380000000	usd
	bk	Subcustodian And Clearing Expense SubcustodianAndClearingExpense	370000000	usd
	us-gaap	Business Development BusinessDevelopment	134000000	usd
CY2023Q3	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	15000000	usd
CY2023Q3	bk	Income Loss From Continuing Operations Before Income Taxes IncomeLossFromContinuingOperationsBeforeIncomeTaxes	1328000000	usd
	bk	Income Loss From Continuing Operations Before Income Taxes IncomeLossFromContinuingOperationsBeforeIncomeTaxes	4376000000	usd
CY2023Q3	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	285000000	usd
	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	990000000	usd
	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	906000000	usd
CY2024Q3	us-gaap	Profit Loss ProfitLoss	1189000000	usd
CY2024Q2	us-gaap	Profit Loss ProfitLoss	1170000000	usd
CY2023Q3	us-gaap	Profit Loss ProfitLoss	1043000000	usd
	us-gaap	Profit Loss ProfitLoss	3386000000	usd
	us-gaap	Profit Loss ProfitLoss	3098000000	usd
CY2024Q3	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	7000000	usd
CY2024Q2	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	2000000	usd
CY2023Q3	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	3000000	usd
	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	11000000	usd
	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	4000000	usd
CY2024Q3	us-gaap	Net Income Loss NetIncomeLoss	1182000000	usd
CY2024Q2	us-gaap	Net Income Loss NetIncomeLoss	1168000000	usd
CY2023Q3	us-gaap	Net Income Loss NetIncomeLoss	1040000000	usd
	us-gaap	Net Income Loss NetIncomeLoss	3375000000	usd
	us-gaap	Net Income Loss NetIncomeLoss	3094000000	usd
CY2024Q3	us-gaap	Preferred Stock Dividends Income Statement Impact PreferredStockDividendsIncomeStatementImpact	72000000	usd
CY2024Q2	us-gaap	Preferred Stock Dividends Income Statement Impact PreferredStockDividendsIncomeStatementImpact	25000000	usd
CY2023Q3	us-gaap	Preferred Stock Dividends Income Statement Impact PreferredStockDividendsIncomeStatementImpact	82000000	usd
	us-gaap	Preferred Stock Dividends Income Statement Impact PreferredStockDividendsIncomeStatementImpact	169000000	usd
	us-gaap	Preferred Stock Dividends Income Statement Impact PreferredStockDividendsIncomeStatementImpact	189000000	usd
CY2024Q3	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	1110000000	usd
CY2024Q2	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	1143000000	usd
CY2023Q3	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	958000000	usd
	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	3206000000	usd
	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	2905000000	usd
CY2024Q2	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	1143000000	usd
CY2023Q3	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	958000000	usd
	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	3206000000	usd
	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	2905000000	usd
	dei	Entity Incorporation State Country Code EntityIncorporationStateCountryCode	DE
	dei	Entity Tax Identification Number EntityTaxIdentificationNumber	13-2614959
CY2023Q3	bk	Financing Related Fees FinancingRelatedFees	45000000	usd
CY2024Q3	us-gaap	Interest And Dividend Income Operating InterestAndDividendIncomeOperating	6652000000	usd
CY2024Q2	us-gaap	Expense Related To Distribution Or Servicing And Underwriting Fees ExpenseRelatedToDistributionOrServicingAndUnderwritingFees	88000000	usd
	bk	Net Income Loss Available To Common Shareholders Basic After Required Adjustments NetIncomeLossAvailableToCommonShareholdersBasicAfterRequiredAdjustments	3206000000	usd
CY2023Q3	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	40914000000	usd
	us-gaap	Prior Period Reclassification Adjustment Description PriorPeriodReclassificationAdjustmentDescription	<span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:11pt;font-weight:400;line-height:120%">On Jan. 1, 2024, we adopted Accounting Standards Update (“ASU”) 2023-02, </span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:11pt;font-style:italic;font-weight:400;line-height:120%">Investments—Equity Method and Joint Ventures (Topic 323): Accounting for Investments in Tax Credit Structures Using the Proportional Amortization Method</span> on a retrospective basis for our investments in renewable energy projects that have met the eligibility criteria, and restated prior period financial statements.
	us-gaap	Use Of Estimates UseOfEstimates	<div><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:11pt;font-style:italic;font-weight:400;line-height:120%">Use of estimates</span></div><div><span><br/></span></div><div><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:11pt;font-weight:400;line-height:120%">The preparation of financial statements in conformity with U.S. GAAP requires management to make estimates based upon assumptions about future economic and market conditions which affect reported amounts and related disclosures in our </span></div>financial statements. Although our current estimates contemplate current conditions and how we expect them to change in the future, it is reasonably possible that actual conditions could be worse than anticipated in those estimates, which could materially affect our results of operations and financial condition.
	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2024
	dei	Document Period End Date DocumentPeriodEndDate	2024-09-30
	dei	Entity Interactive Data Current EntityInteractiveDataCurrent	Yes
	dei	Entity Central Index Key EntityCentralIndexKey	0001390777
	dei	City Area Code CityAreaCode	212
	dei	Local Phone Number LocalPhoneNumber	495-1784
CY2024Q3	bk	Financing Related Fees FinancingRelatedFees	53000000	usd
CY2024Q2	bk	Financing Related Fees FinancingRelatedFees	53000000	usd
	bk	Total Revenues Including Revenue Generated By Variable Interest Entities TotalRevenuesIncludingRevenueGeneratedByVariableInterestEntities	13772000000	usd
	bk	Total Revenues Including Revenue Generated By Variable Interest Entities TotalRevenuesIncludingRevenueGeneratedByVariableInterestEntities	13339000000	usd
CY2024Q3	us-gaap	Provision For Loan Lease And Other Losses ProvisionForLoanLeaseAndOtherLosses	23000000	usd
CY2024Q2	us-gaap	Provision For Loan Lease And Other Losses ProvisionForLoanLeaseAndOtherLosses	0	usd
CY2023Q3	us-gaap	Provision For Loan Lease And Other Losses ProvisionForLoanLeaseAndOtherLosses	3000000	usd
CY2024Q3	bk	Subcustodian And Clearing Expense SubcustodianAndClearingExpense	117000000	usd
CY2024Q2	bk	Subcustodian And Clearing Expense SubcustodianAndClearingExpense	134000000	usd
CY2023Q3	bk	Subcustodian And Clearing Expense SubcustodianAndClearingExpense	121000000	usd
CY2024Q3	us-gaap	Expense Related To Distribution Or Servicing And Underwriting Fees ExpenseRelatedToDistributionOrServicingAndUnderwritingFees	90000000	usd
	us-gaap	Business Development BusinessDevelopment	122000000	usd
CY2024Q2	bk	Bank Assessment Charges BankAssessmentCharges	-7000000	usd
CY2023Q3	bk	Bank Assessment Charges BankAssessmentCharges	37000000	usd
	bk	Bank Assessment Charges BankAssessmentCharges	20000000	usd
	bk	Bank Assessment Charges BankAssessmentCharges	118000000	usd
	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	37000000	usd
	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	43000000	usd
CY2024Q3	us-gaap	Other Noninterest Expense OtherNoninterestExpense	96000000	usd
CY2024Q2	us-gaap	Other Noninterest Expense OtherNoninterestExpense	88000000	usd
CY2023Q3	us-gaap	Other Noninterest Expense OtherNoninterestExpense	78000000	usd
	us-gaap	Other Noninterest Expense OtherNoninterestExpense	275000000	usd
	us-gaap	Other Noninterest Expense OtherNoninterestExpense	298000000	usd
CY2024Q3	us-gaap	Noninterest Expense NoninterestExpense	3100000000	usd
CY2024Q2	us-gaap	Noninterest Expense NoninterestExpense	3070000000	usd
CY2023Q3	us-gaap	Noninterest Expense NoninterestExpense	3089000000	usd
	us-gaap	Noninterest Expense NoninterestExpense	9346000000	usd
	us-gaap	Noninterest Expense NoninterestExpense	9300000000	usd
CY2024Q3	bk	Income Loss From Continuing Operations Before Income Taxes IncomeLossFromContinuingOperationsBeforeIncomeTaxes	1525000000	usd
CY2024Q2	bk	Income Loss From Continuing Operations Before Income Taxes IncomeLossFromContinuingOperationsBeforeIncomeTaxes	1527000000	usd
	bk	Income Loss From Continuing Operations Before Income Taxes IncomeLossFromContinuingOperationsBeforeIncomeTaxes	4004000000	usd
CY2024Q3	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	336000000	usd
CY2024Q2	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	357000000	usd
CY2024Q3	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	1110000000	usd
CY2024Q3	us-gaap	Participating Securities Distributed And Undistributed Earnings Loss Diluted ParticipatingSecuritiesDistributedAndUndistributedEarningsLossDiluted	0	usd
CY2024Q3	us-gaap	Participating Securities Distributed And Undistributed Earnings Loss Basic ParticipatingSecuritiesDistributedAndUndistributedEarningsLossBasic	0	usd
CY2023Q3	us-gaap	Participating Securities Distributed And Undistributed Earnings Loss Basic ParticipatingSecuritiesDistributedAndUndistributedEarningsLossBasic	0	usd
CY2023Q3	us-gaap	Participating Securities Distributed And Undistributed Earnings Loss Diluted ParticipatingSecuritiesDistributedAndUndistributedEarningsLossDiluted	0	usd
CY2024Q3	bk	Net Income Loss Available To Common Shareholders Basic After Required Adjustments NetIncomeLossAvailableToCommonShareholdersBasicAfterRequiredAdjustments	1110000000	usd
CY2024Q3	bk	Net Income Loss Available To Common Shareholders Diluted After Required Adjustments NetIncomeLossAvailableToCommonShareholdersDilutedAfterRequiredAdjustments	1110000000	usd
CY2024Q2	bk	Net Income Loss Available To Common Shareholders Basic After Required Adjustments NetIncomeLossAvailableToCommonShareholdersBasicAfterRequiredAdjustments	1143000000	usd
CY2024Q2	bk	Net Income Loss Available To Common Shareholders Diluted After Required Adjustments NetIncomeLossAvailableToCommonShareholdersDilutedAfterRequiredAdjustments	1143000000	usd
	bk	Net Income Loss Available To Common Shareholders Diluted After Required Adjustments NetIncomeLossAvailableToCommonShareholdersDilutedAfterRequiredAdjustments	3206000000	usd
CY2024Q3	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	736547000	shares
CY2024Q2	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	746904000	shares
CY2023Q3	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	777813000	shares
	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	747766000	shares
	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	789609000	shares
CY2024Q3	us-gaap	Weighted Average Number Diluted Shares Outstanding Adjustment WeightedAverageNumberDilutedSharesOutstandingAdjustment	5533000	shares
CY2024Q2	us-gaap	Weighted Average Number Diluted Shares Outstanding Adjustment WeightedAverageNumberDilutedSharesOutstandingAdjustment	4692000	shares
CY2023Q3	us-gaap	Weighted Average Number Diluted Shares Outstanding Adjustment WeightedAverageNumberDilutedSharesOutstandingAdjustment	4058000	shares
	us-gaap	Weighted Average Number Diluted Shares Outstanding Adjustment WeightedAverageNumberDilutedSharesOutstandingAdjustment	4789000	shares
	us-gaap	Weighted Average Number Diluted Shares Outstanding Adjustment WeightedAverageNumberDilutedSharesOutstandingAdjustment	3848000	shares
CY2024Q3	us-gaap	Incremental Common Shares Attributable To Participating Nonvested Shares With Non Forfeitable Dividend Rights IncrementalCommonSharesAttributableToParticipatingNonvestedSharesWithNonForfeitableDividendRights	0	shares
CY2024Q2	us-gaap	Incremental Common Shares Attributable To Participating Nonvested Shares With Non Forfeitable Dividend Rights IncrementalCommonSharesAttributableToParticipatingNonvestedSharesWithNonForfeitableDividendRights	0	shares
CY2023Q3	us-gaap	Incremental Common Shares Attributable To Participating Nonvested Shares With Non Forfeitable Dividend Rights IncrementalCommonSharesAttributableToParticipatingNonvestedSharesWithNonForfeitableDividendRights	90000	shares
	us-gaap	Incremental Common Shares Attributable To Participating Nonvested Shares With Non Forfeitable Dividend Rights IncrementalCommonSharesAttributableToParticipatingNonvestedSharesWithNonForfeitableDividendRights	0	shares
	us-gaap	Incremental Common Shares Attributable To Participating Nonvested Shares With Non Forfeitable Dividend Rights IncrementalCommonSharesAttributableToParticipatingNonvestedSharesWithNonForfeitableDividendRights	93000	shares
CY2024Q3	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	742080000	shares
CY2024Q2	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	751596000	shares
CY2023Q3	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	781781000	shares
	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	752555000	shares
	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	793364000	shares
CY2024Q3	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	176000	shares
CY2024Q2	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	578000	shares
CY2023Q3	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	1305000	shares
	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	173000	shares
	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	5559000	shares
CY2024Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.51
CY2024Q2	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.53
CY2023Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.23
	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	4.29
	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	3.68
CY2024Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.50
	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	4.26
CY2024Q3	us-gaap	Profit Loss ProfitLoss	1189000000	usd
CY2024Q2	us-gaap	Profit Loss ProfitLoss	1170000000	usd
CY2023Q3	us-gaap	Profit Loss ProfitLoss	1043000000	usd
	us-gaap	Profit Loss ProfitLoss	3386000000	usd
	us-gaap	Profit Loss ProfitLoss	3098000000	usd
CY2024Q3	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Net Of Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax	290000000	usd
CY2024Q2	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Net Of Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax	-30000000	usd
CY2023Q3	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Net Of Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax	-185000000	usd
	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Net Of Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax	169000000	usd
CY2024Q3	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax	739000000	usd
CY2024Q2	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax	-11000000	usd
CY2023Q3	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax	-29000000	usd
	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax	831000000	usd
	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax	131000000	usd
CY2024Q3	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesNetOfTax	-12000000	usd
CY2024Q2	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesNetOfTax	-13000000	usd
CY2023Q3	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesNetOfTax	-14000000	usd
	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesNetOfTax	-26000000	usd
	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesNetOfTax	-15000000	usd
CY2024Q3	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax	751000000	usd
CY2024Q2	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax	2000000	usd
	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax	857000000	usd
	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax	146000000	usd
CY2024Q3	us-gaap	Other Comprehensive Income Loss Amortization Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Prior Service Cost Credit Net Of Tax OtherComprehensiveIncomeLossAmortizationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetPriorServiceCostCreditNetOfTax	2000000	usd
CY2024Q2	us-gaap	Other Comprehensive Income Loss Amortization Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Prior Service Cost Credit Net Of Tax OtherComprehensiveIncomeLossAmortizationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetPriorServiceCostCreditNetOfTax	3000000	usd
CY2023Q3	us-gaap	Other Comprehensive Income Loss Amortization Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Prior Service Cost Credit Net Of Tax OtherComprehensiveIncomeLossAmortizationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetPriorServiceCostCreditNetOfTax	-3000000	usd
	us-gaap	Other Comprehensive Income Loss Amortization Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Prior Service Cost Credit Net Of Tax OtherComprehensiveIncomeLossAmortizationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetPriorServiceCostCreditNetOfTax	8000000	usd
	us-gaap	Other Comprehensive Income Loss Amortization Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Prior Service Cost Credit Net Of Tax OtherComprehensiveIncomeLossAmortizationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetPriorServiceCostCreditNetOfTax	-8000000	usd
CY2024Q3	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Net Of Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax	-2000000	usd
CY2024Q2	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Net Of Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax	-3000000	usd
CY2023Q3	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Net Of Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax	3000000	usd
	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Net Of Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax	-8000000	usd
	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Net Of Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax	8000000	usd
CY2024Q3	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification And Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTax	-5000000	usd
CY2024Q2	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification And Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTax	1000000	usd
CY2023Q3	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification And Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTax	0	usd
	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification And Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTax	-3000000	usd
	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification And Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTax	8000000	usd
CY2024Q3	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	1038000000	usd
CY2024Q2	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-24000000	usd
CY2023Q3	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-203000000	usd
	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	3259000000	usd
CY2024Q3	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	7000000	usd
CY2024Q2	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	2000000	usd
CY2023Q3	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	3000000	usd
	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	11000000	usd
	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	4000000	usd
CY2024Q3	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Noncontrolling Interest OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToNoncontrollingInterest	5000000	usd
CY2024Q2	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Noncontrolling Interest OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToNoncontrollingInterest	0	usd
CY2023Q3	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Noncontrolling Interest OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToNoncontrollingInterest	0	usd
	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Noncontrolling Interest OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToNoncontrollingInterest	5000000	usd
	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Noncontrolling Interest OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToNoncontrollingInterest	0	usd
CY2024Q3	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	2215000000	usd
CY2024Q2	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	1144000000	usd
CY2023Q3	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	837000000	usd
	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	3255000000	usd
CY2024Q3	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	1033000000	usd
CY2024Q2	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	-24000000	usd
CY2023Q3	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	-203000000	usd
	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	1026000000	usd
	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	161000000	usd
CY2024Q3	bk	Cashand Duefrom Banks Allowancefor Credit Loss CashandDuefromBanksAllowanceforCreditLoss	26000000	usd
CY2023Q4	bk	Cashand Duefrom Banks Allowancefor Credit Loss CashandDuefromBanksAllowanceforCreditLoss	18000000	usd
CY2024Q3	us-gaap	Cash And Due From Banks CashAndDueFromBanks	6234000000	usd
CY2023Q4	us-gaap	Cash And Due From Banks CashAndDueFromBanks	4922000000	usd
CY2024Q3	bk	Interest Bearing Deposits In Federal Reserve And Other Central Banks InterestBearingDepositsInFederalReserveAndOtherCentralBanks	102231000000	usd
CY2023Q4	bk	Interest Bearing Deposits In Federal Reserve And Other Central Banks InterestBearingDepositsInFederalReserveAndOtherCentralBanks	111550000000	usd
CY2024Q3	bk	Interestbearing Depositsin Banksand Other Financial Institutions Allowancefor Credit Loss InterestbearingDepositsinBanksandOtherFinancialInstitutionsAllowanceforCreditLoss	1000000	usd
CY2023Q4	bk	Interestbearing Depositsin Banksand Other Financial Institutions Allowancefor Credit Loss InterestbearingDepositsinBanksandOtherFinancialInstitutionsAllowanceforCreditLoss	2000000	usd
CY2024Q3	bk	Restricted Cash Interest Bearing Deposits In Banks And Other Financial Institutions RestrictedCashInterestBearingDepositsInBanksAndOtherFinancialInstitutions	1609000000	usd
CY2023Q4	bk	Restricted Cash Interest Bearing Deposits In Banks And Other Financial Institutions RestrictedCashInterestBearingDepositsInBanksAndOtherFinancialInstitutions	3420000000	usd
CY2024Q3	us-gaap	Interest Bearing Deposits In Banks InterestBearingDepositsInBanks	9354000000	usd
CY2023Q4	us-gaap	Interest Bearing Deposits In Banks InterestBearingDepositsInBanks	12139000000	usd
CY2024Q3	us-gaap	Federal Funds Sold And Securities Purchased Under Agreements To Resell FederalFundsSoldAndSecuritiesPurchasedUnderAgreementsToResell	36164000000	usd
CY2023Q4	us-gaap	Federal Funds Sold And Securities Purchased Under Agreements To Resell FederalFundsSoldAndSecuritiesPurchasedUnderAgreementsToResell	28900000000	usd
CY2024Q3	us-gaap	Debt Securities Held To Maturity Allowance For Credit Loss DebtSecuritiesHeldToMaturityAllowanceForCreditLoss	1000000	usd
CY2023Q4	us-gaap	Debt Securities Held To Maturity Allowance For Credit Loss DebtSecuritiesHeldToMaturityAllowanceForCreditLoss	1000000	usd
CY2024Q3	us-gaap	Held To Maturity Securities Fair Value HeldToMaturitySecuritiesFairValue	41290000000	usd
CY2023Q4	us-gaap	Held To Maturity Securities Fair Value HeldToMaturitySecuritiesFairValue	44711000000	usd
CY2024Q3	us-gaap	Held To Maturity Securities HeldToMaturitySecurities	44947000000	usd
CY2023Q4	us-gaap	Held To Maturity Securities HeldToMaturitySecurities	49578000000	usd
CY2024Q3	us-gaap	Debt Securities Available For Sale Amortized Cost After Allowance For Credit Loss DebtSecuritiesAvailableForSaleAmortizedCostAfterAllowanceForCreditLoss	99096000000	usd
CY2023Q4	us-gaap	Debt Securities Available For Sale Amortized Cost After Allowance For Credit Loss DebtSecuritiesAvailableForSaleAmortizedCostAfterAllowanceForCreditLoss	80678000000	usd
CY2024Q3	us-gaap	Debt Securities Available For Sale Allowance For Credit Loss DebtSecuritiesAvailableForSaleAllowanceForCreditLoss	0	usd
CY2023Q4	us-gaap	Debt Securities Available For Sale Allowance For Credit Loss DebtSecuritiesAvailableForSaleAllowanceForCreditLoss	1000000	usd
CY2024Q3	us-gaap	Available For Sale Securities Debt Securities AvailableForSaleSecuritiesDebtSecurities	96929000000	usd
CY2023Q4	us-gaap	Available For Sale Securities Debt Securities AvailableForSaleSecuritiesDebtSecurities	76817000000	usd
CY2024Q3	us-gaap	Debt Securities Available For Sale And Held To Maturity Amortized Cost After Allowance For Credit Loss DebtSecuritiesAvailableForSaleAndHeldToMaturityAmortizedCostAfterAllowanceForCreditLoss	141876000000	usd
CY2023Q4	us-gaap	Debt Securities Available For Sale And Held To Maturity Amortized Cost After Allowance For Credit Loss DebtSecuritiesAvailableForSaleAndHeldToMaturityAmortizedCostAfterAllowanceForCreditLoss	126395000000	usd
CY2023Q4	us-gaap	Trading Securities TradingSecurities	10058000000	usd
CY2024Q3	us-gaap	Notes Receivable Gross NotesReceivableGross	69451000000	usd
CY2023Q4	us-gaap	Notes Receivable Gross NotesReceivableGross	66879000000	usd
CY2024Q3	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	296000000	usd
CY2023Q4	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	303000000	usd
CY2024Q3	us-gaap	Notes Receivable Net NotesReceivableNet	69155000000	usd
CY2023Q4	us-gaap	Notes Receivable Net NotesReceivableNet	66576000000	usd
CY2024Q3	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	3380000000	usd
CY2023Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	3163000000	usd
CY2024Q3	us-gaap	Accrued Investment Income Receivable AccruedInvestmentIncomeReceivable	1319000000	usd
CY2023Q4	us-gaap	Accrued Investment Income Receivable AccruedInvestmentIncomeReceivable	1150000000	usd
CY2024Q3	us-gaap	Goodwill Goodwill	16338000000	usd
CY2023Q4	us-gaap	Goodwill Goodwill	16261000000	usd
CY2024Q3	us-gaap	Intangible Assets Net Excluding Goodwill IntangibleAssetsNetExcludingGoodwill	2824000000	usd
CY2023Q4	us-gaap	Intangible Assets Net Excluding Goodwill IntangibleAssetsNetExcludingGoodwill	2854000000	usd
CY2024Q3	us-gaap	Allowance For Doubtful Accounts Receivable AllowanceForDoubtfulAccountsReceivable	3000000	usd
	bk	Proceeds From Maturities And Calls Of Held To Maturity Securities ProceedsFromMaturitiesAndCallsOfHeldToMaturitySecurities	1715000000	usd
	us-gaap	Payments To Acquire Available For Sale Securities Debt PaymentsToAcquireAvailableForSaleSecuritiesDebt	37043000000	usd
	us-gaap	Payments To Acquire Available For Sale Securities Debt PaymentsToAcquireAvailableForSaleSecuritiesDebt	15779000000	usd
	us-gaap	Proceeds From Sale Of Available For Sale Securities Debt ProceedsFromSaleOfAvailableForSaleSecuritiesDebt	4467000000	usd
	us-gaap	Proceeds From Sale Of Available For Sale Securities Debt ProceedsFromSaleOfAvailableForSaleSecuritiesDebt	9449000000	usd
	bk	Proceedsfrom Prepaymentsand Callsof Debt Securities Availableforsale ProceedsfromPrepaymentsandCallsofDebtSecuritiesAvailableforsale	4831000000	usd
	bk	Proceedsfrom Prepaymentsand Callsof Debt Securities Availableforsale ProceedsfromPrepaymentsandCallsofDebtSecuritiesAvailableforsale	2794000000	usd
	bk	Proceedsfrom Maturitiesof Debt Securities Availableforsale ProceedsfromMaturitiesofDebtSecuritiesAvailableforsale	11677000000	usd
	bk	Proceedsfrom Maturitiesof Debt Securities Availableforsale ProceedsfromMaturitiesofDebtSecuritiesAvailableforsale	12988000000	usd
	us-gaap	Payments For Proceeds From Other Loans And Leases PaymentsForProceedsFromOtherLoansAndLeases	2633000000	usd
	us-gaap	Payments For Proceeds From Other Loans And Leases PaymentsForProceedsFromOtherLoansAndLeases	243000000	usd
	us-gaap	Proceeds From Payments For Federal Funds Sold And Securities Purchased Under Agreements To Resell Net ProceedsFromPaymentsForFederalFundsSoldAndSecuritiesPurchasedUnderAgreementsToResellNet	-7269000000	usd
	us-gaap	Proceeds From Payments For Federal Funds Sold And Securities Purchased Under Agreements To Resell Net ProceedsFromPaymentsForFederalFundsSoldAndSecuritiesPurchasedUnderAgreementsToResellNet	-2002000000	usd
	bk	Payments For Proceeds From Other Investments PaymentsForProceedsFromOtherInvestments	-52000000	usd
	bk	Payments For Proceeds From Other Investments PaymentsForProceedsFromOtherInvestments	-18000000	usd
	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	1056000000	usd
	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	951000000	usd
	us-gaap	Payments For Proceeds From Other Investing Activities PaymentsForProceedsFromOtherInvestingActivities	-494000000	usd
	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-11110000000	usd
	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-4464000000	usd
	us-gaap	Increase Decrease In Deposits IncreaseDecreaseInDeposits	11984000000	usd
	us-gaap	Increase Decrease In Deposits IncreaseDecreaseInDeposits	81000000	usd
	us-gaap	Increase Decrease In Federal Funds Purchased And Securities Sold Under Agreements To Repurchase Net IncreaseDecreaseInFederalFundsPurchasedAndSecuritiesSoldUnderAgreementsToRepurchaseNet	11000000	usd
	us-gaap	Increase Decrease In Federal Funds Purchased And Securities Sold Under Agreements To Repurchase Net IncreaseDecreaseInFederalFundsPurchasedAndSecuritiesSoldUnderAgreementsToRepurchaseNet	2538000000	usd
	bk	Increase Decrease In Payable To Customers And Broker Dealers IncreaseDecreaseInPayableToCustomersAndBrokerDealers	1346000000	usd
	bk	Increase Decrease In Payable To Customers And Broker Dealers IncreaseDecreaseInPayableToCustomersAndBrokerDealers	-5983000000	usd
	us-gaap	Proceeds From Repayments Of Other Debt ProceedsFromRepaymentsOfOtherDebt	-74000000	usd
	us-gaap	Proceeds From Repayments Of Commercial Paper ProceedsFromRepaymentsOfCommercialPaper	301000000	usd
	us-gaap	Proceeds From Repayments Of Commercial Paper ProceedsFromRepaymentsOfCommercialPaper	0	usd
	us-gaap	Proceeds From Issuance Of Long Term Debt ProceedsFromIssuanceOfLongTermDebt	4988000000	usd
	us-gaap	Proceeds From Issuance Of Long Term Debt ProceedsFromIssuanceOfLongTermDebt	4493000000	usd
	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	3513000000	usd
	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	5466000000	usd
	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	13000000	usd
	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	12000000	usd
	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	2314000000	usd
	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	2154000000	usd
	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	999000000	usd
	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	934000000	usd
	us-gaap	Payments Of Dividends Preferred Stock And Preference Stock PaymentsOfDividendsPreferredStockAndPreferenceStock	169000000	usd
	us-gaap	Payments Of Dividends Preferred Stock And Preference Stock PaymentsOfDividendsPreferredStockAndPreferenceStock	189000000	usd
	us-gaap	Proceeds From Payments For Other Financing Activities ProceedsFromPaymentsForOtherFinancingActivities	22000000	usd
	us-gaap	Proceeds From Payments For Other Financing Activities ProceedsFromPaymentsForOtherFinancingActivities	0	usd
	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	11596000000	usd
	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-7260000000	usd
	us-gaap	Effect Of Exchange Rate On Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	-122000000	usd
CY2023Q4	us-gaap	Allowance For Doubtful Accounts Receivable AllowanceForDoubtfulAccountsReceivable	3000000	usd
CY2023Q4	us-gaap	Other Assets Fair Value Disclosure OtherAssetsFairValueDisclosure	1261000000	usd
CY2024Q3	us-gaap	Other Assets OtherAssets	26127000000	usd
CY2023Q4	us-gaap	Other Assets OtherAssets	25909000000	usd
CY2024Q3	us-gaap	Assets Assets	427461000000	usd
CY2023Q4	us-gaap	Assets Assets	409877000000	usd
CY2024Q3	us-gaap	Noninterest Bearing Domestic Deposit Demand NoninterestBearingDomesticDepositDemand	61497000000	usd
CY2023Q4	us-gaap	Noninterest Bearing Domestic Deposit Demand NoninterestBearingDomesticDepositDemand	58274000000	usd
CY2024Q3	us-gaap	Interest Bearing Deposit Liabilities Domestic InterestBearingDepositLiabilitiesDomestic	135359000000	usd
CY2023Q4	us-gaap	Interest Bearing Deposit Liabilities Domestic InterestBearingDepositLiabilitiesDomestic	132616000000	usd
CY2024Q3	us-gaap	Interest Bearing Deposit Liabilities Foreign InterestBearingDepositLiabilitiesForeign	99582000000	usd
CY2023Q4	us-gaap	Interest Bearing Deposit Liabilities Foreign InterestBearingDepositLiabilitiesForeign	92779000000	usd
CY2024Q3	us-gaap	Deposits Deposits	296438000000	usd
CY2023Q4	us-gaap	Deposits Deposits	283669000000	usd
CY2024Q3	us-gaap	Federal Funds Purchased And Securities Sold Under Agreements To Repurchase FederalFundsPurchasedAndSecuritiesSoldUnderAgreementsToRepurchase	14574000000	usd
CY2023Q4	us-gaap	Federal Funds Purchased And Securities Sold Under Agreements To Repurchase FederalFundsPurchasedAndSecuritiesSoldUnderAgreementsToRepurchase	14507000000	usd
CY2024Q3	us-gaap	Trading Liabilities TradingLiabilities	4553000000	usd
CY2023Q4	us-gaap	Trading Liabilities TradingLiabilities	6226000000	usd
CY2024Q3	srt	Payables To Broker Dealers And Clearing Organizations PayablesToBrokerDealersAndClearingOrganizations	19741000000	usd
CY2023Q4	srt	Payables To Broker Dealers And Clearing Organizations PayablesToBrokerDealersAndClearingOrganizations	18395000000	usd
CY2024Q3	us-gaap	Commercial Paper CommercialPaper	301000000	usd
CY2023Q4	us-gaap	Commercial Paper CommercialPaper	0	usd
CY2024Q3	us-gaap	Other Borrowings OtherBorrowings	401000000	usd
CY2023Q4	us-gaap	Other Borrowings OtherBorrowings	479000000	usd
CY2024Q3	us-gaap	Accrued Liabilities Current And Noncurrent AccruedLiabilitiesCurrentAndNoncurrent	5138000000	usd
CY2023Q4	us-gaap	Accrued Liabilities Current And Noncurrent AccruedLiabilitiesCurrentAndNoncurrent	5411000000	usd
CY2024Q3	us-gaap	Off Balance Sheet Credit Loss Liability OffBalanceSheetCreditLossLiability	75000000	usd
CY2023Q4	us-gaap	Off Balance Sheet Credit Loss Liability OffBalanceSheetCreditLossLiability	87000000	usd
CY2024Q3	us-gaap	Other Liabilities Fair Value Disclosure OtherLiabilitiesFairValueDisclosure	305000000	usd
CY2023Q4	us-gaap	Other Liabilities Fair Value Disclosure OtherLiabilitiesFairValueDisclosure	195000000	usd
CY2024Q3	us-gaap	Other Liabilities OtherLiabilities	10726000000	usd
CY2023Q4	us-gaap	Other Liabilities OtherLiabilities	9028000000	usd
CY2024Q3	us-gaap	Long Term Debt LongTermDebt	33199000000	usd
CY2023Q4	us-gaap	Long Term Debt LongTermDebt	31257000000	usd
CY2024Q3	us-gaap	Liabilities Liabilities	385071000000	usd
CY2023Q4	us-gaap	Liabilities Liabilities	368972000000	usd
CY2024Q3	us-gaap	Temporary Equity Carrying Amount Including Portion Attributable To Noncontrolling Interests TemporaryEquityCarryingAmountIncludingPortionAttributableToNoncontrollingInterests	107000000	usd
CY2023Q4	us-gaap	Temporary Equity Carrying Amount Including Portion Attributable To Noncontrolling Interests TemporaryEquityCarryingAmountIncludingPortionAttributableToNoncontrollingInterests	85000000	usd
CY2023Q4	us-gaap	Preferred Stock Par Or Stated Value Per Share PreferredStockParOrStatedValuePerShare	0.01
CY2024Q3	us-gaap	Preferred Stock Par Or Stated Value Per Share PreferredStockParOrStatedValuePerShare	0.01
CY2024Q3	us-gaap	Preferred Stock Shares Authorized PreferredStockSharesAuthorized	100000000	shares
CY2024Q3	us-gaap	Preferred Stock Shares Issued PreferredStockSharesIssued	43826	shares
CY2023Q4	us-gaap	Preferred Stock Shares Issued PreferredStockSharesIssued	43826	shares
CY2024Q3	us-gaap	Preferred Stock Value PreferredStockValue	4343000000	usd
CY2023Q4	us-gaap	Preferred Stock Value PreferredStockValue	4343000000	usd
CY2023Q4	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	0.01
CY2024Q3	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	0.01
CY2023Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	3500000000	shares
CY2024Q3	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	3500000000	shares
CY2024Q3	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	1409433699	shares
CY2024Q3	us-gaap	Common Stock Value Outstanding CommonStockValueOutstanding	14000000	usd
CY2023Q4	us-gaap	Common Stock Value Outstanding CommonStockValueOutstanding	14000000	usd
CY2024Q3	us-gaap	Additional Paid In Capital AdditionalPaidInCapital	29230000000	usd
CY2023Q4	us-gaap	Additional Paid In Capital AdditionalPaidInCapital	28908000000	usd
CY2024Q3	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	41756000000	usd
CY2023Q4	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	39549000000	usd
CY2024Q3	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-3867000000	usd
CY2023Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-4893000000	usd
CY2024Q3	us-gaap	Treasury Stock Common Shares TreasuryStockCommonShares	682355379	shares
CY2023Q4	us-gaap	Treasury Stock Common Shares TreasuryStockCommonShares	643085355	shares
CY2023Q4	us-gaap	Treasury Stock Value TreasuryStockValue	27151000000	usd
CY2024Q3	us-gaap	Stockholders Equity StockholdersEquity	41992000000	usd
CY2023Q4	us-gaap	Stockholders Equity StockholdersEquity	40770000000	usd
CY2024Q3	us-gaap	Minority Interest MinorityInterest	291000000	usd
CY2023Q4	us-gaap	Minority Interest MinorityInterest	50000000	usd
CY2024Q3	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	42283000000	usd
CY2023Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	40820000000	usd
CY2024Q3	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	427461000000	usd
CY2023Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	409877000000	usd
	us-gaap	Profit Loss ProfitLoss	3386000000	usd
	us-gaap	Profit Loss ProfitLoss	3098000000	usd
	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	11000000	usd
	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	4000000	usd
	us-gaap	Net Income Loss NetIncomeLoss	3375000000	usd
	us-gaap	Net Income Loss NetIncomeLoss	3094000000	usd
	us-gaap	Provision For Loan Lease And Other Losses ProvisionForLoanLeaseAndOtherLosses	50000000	usd
	us-gaap	Provision For Loan Lease And Other Losses ProvisionForLoanLeaseAndOtherLosses	35000000	usd
	us-gaap	Pension Contributions PensionContributions	4000000	usd
	us-gaap	Pension Contributions PensionContributions	4000000	usd
	us-gaap	Depreciation Amortization And Accretion Net DepreciationAmortizationAndAccretionNet	1375000000	usd
	us-gaap	Depreciation Amortization And Accretion Net DepreciationAmortizationAndAccretionNet	1226000000	usd
	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-133000000	usd
	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-11000000	usd
	bk	Net Securities Gain Loss NetSecuritiesGainLoss	-35000000	usd
	bk	Net Securities Gain Loss NetSecuritiesGainLoss	-20000000	usd
	us-gaap	Increase Decrease In Trading Securities IncreaseDecreaseInTradingSecurities	4318000000	usd
	us-gaap	Increase Decrease In Trading Securities IncreaseDecreaseInTradingSecurities	-1015000000	usd
	us-gaap	Increase Decrease In Other Operating Liabilities IncreaseDecreaseInOtherOperatingLiabilities	-1243000000	usd
	us-gaap	Increase Decrease In Other Operating Liabilities IncreaseDecreaseInOtherOperatingLiabilities	2605000000	usd
	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	-863000000	usd
	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	7980000000	usd
	us-gaap	Proceeds From Payments For In Interest Bearing Deposits In Banks ProceedsFromPaymentsForInInterestBearingDepositsInBanks	917000000	usd
	us-gaap	Proceeds From Payments For In Interest Bearing Deposits In Banks ProceedsFromPaymentsForInInterestBearingDepositsInBanks	453000000	usd
	bk	Net Change In Interest Bearing Deposits With Federal Reserve And Other Central Banks NetChangeInInterestBearingDepositsWithFederalReserveAndOtherCentralBanks	9890000000	usd
	bk	Net Change In Interest Bearing Deposits With Federal Reserve And Other Central Banks NetChangeInInterestBearingDepositsWithFederalReserveAndOtherCentralBanks	-16667000000	usd
	us-gaap	Payments To Acquire Held To Maturity Securities PaymentsToAcquireHeldToMaturitySecurities	461000000	usd
	us-gaap	Payments To Acquire Held To Maturity Securities PaymentsToAcquireHeldToMaturitySecurities	273000000	usd
	bk	Proceeds From Prepayments And Calls Of Held To Maturity Securities ProceedsFromPrepaymentsAndCallsOfHeldToMaturitySecurities	3208000000	usd
	us-gaap	Interest Paid Net InterestPaidNet	15990000000	usd
	us-gaap	Payments For Proceeds From Other Investing Activities PaymentsForProceedsFromOtherInvestingActivities	-162000000	usd
	us-gaap	Effect Of Exchange Rate On Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	203000000	usd
	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	-499000000	usd
	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	-3541000000	usd
CY2023Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	8342000000	usd
CY2022Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	11529000000	usd
CY2024Q3	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	7843000000	usd
CY2023Q3	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	7988000000	usd
CY2024Q3	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	6234000000	usd
CY2023Q3	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	4904000000	usd
CY2024Q3	us-gaap	Restricted Cash And Cash Equivalents RestrictedCashAndCashEquivalents	1609000000	usd
CY2023Q3	us-gaap	Restricted Cash And Cash Equivalents RestrictedCashAndCashEquivalents	3084000000	usd
CY2024Q3	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	7843000000	usd
CY2023Q3	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	7988000000	usd
	us-gaap	Income Taxes Paid IncomeTaxesPaid	920000000	usd
	us-gaap	Income Taxes Paid IncomeTaxesPaid	653000000	usd
	us-gaap	Proceeds From Income Tax Refunds ProceedsFromIncomeTaxRefunds	20000000	usd
	us-gaap	Proceeds From Income Tax Refunds ProceedsFromIncomeTaxRefunds	13000000	usd
CY2024Q2	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	41029000000	usd
CY2024Q3	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	0.47
CY2024Q3	us-gaap	Dividends Common Stock DividendsCommonStock	353000000	usd
CY2024Q3	us-gaap	Dividends Preferred Stock DividendsPreferredStock	72000000	usd
CY2024Q3	us-gaap	Treasury Stock Value Acquired Cost Method TreasuryStockValueAcquiredCostMethod	725000000	usd
CY2024Q3	us-gaap	Stock Issued During Period Value Employee Benefit Plan StockIssuedDuringPeriodValueEmployeeBenefitPlan	5000000	usd
CY2024Q3	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	84000000	usd
CY2024Q3	bk	Excise Tax On Share Repurchase ExciseTaxOnShareRepurchase	7000000	usd
CY2024Q3	us-gaap	Derivative Liability Fair Value Gross Liability Including Not Subject To Master Netting Arrangement DerivativeLiabilityFairValueGrossLiabilityIncludingNotSubjectToMasterNettingArrangement	8126000000	usd
CY2024Q2	us-gaap	Derivative Gain Loss On Derivative Net DerivativeGainLossOnDerivativeNet	4000000	usd
	us-gaap	Derivative Gain Loss On Derivative Net DerivativeGainLossOnDerivativeNet	5000000	usd
CY2024Q3	us-gaap	Derivative Asset Fair Value Gross Liability DerivativeAssetFairValueGrossLiability	6210000000	usd
CY2024Q3	us-gaap	Derivative Liability Fair Value Gross Asset DerivativeLiabilityFairValueGrossAsset	5266000000	usd
CY2024Q3	us-gaap	Derivative Assets DerivativeAssets	1515000000	usd
CY2024Q3	us-gaap	Derivative Liabilities DerivativeLiabilities	2860000000	usd
CY2024Q2	bk	Foreign Exchange Revenue ForeignExchangeRevenue	184000000	usd
CY2023Q3	bk	Foreign Exchange Revenue ForeignExchangeRevenue	154000000	usd
CY2024Q3	us-gaap	Trading Gains Losses TradingGainsLosses	79000000	usd
CY2024Q2	us-gaap	Trading Gains Losses TradingGainsLosses	77000000	usd
CY2023Q3	us-gaap	Trading Gains Losses TradingGainsLosses	86000000	usd
	us-gaap	Trading Gains Losses TradingGainsLosses	225000000	usd
CY2024Q3	us-gaap	Derivative Net Liability Position Aggregate Fair Value DerivativeNetLiabilityPositionAggregateFairValue	681000000	usd
CY2024Q3	us-gaap	Collateral Already Posted Aggregate Fair Value CollateralAlreadyPostedAggregateFairValue	1015000000	usd
CY2024Q3	us-gaap	Additional Collateral Aggregate Fair Value AdditionalCollateralAggregateFairValue	184000000	usd
CY2024Q3	us-gaap	Derivative Asset Not Subject To Master Netting Arrangement DerivativeAssetNotSubjectToMasterNettingArrangement	646000000	usd
CY2024Q3	us-gaap	Derivative Liability Not Subject To Master Netting Arrangement DerivativeLiabilityNotSubjectToMasterNettingArrangement	678000000	usd
CY2024Q3	us-gaap	Derivative Liability Not Subject To Master Netting Arrangement DerivativeLiabilityNotSubjectToMasterNettingArrangement	678000000	usd
CY2023Q4	us-gaap	Derivative Liability Not Subject To Master Netting Arrangement DerivativeLiabilityNotSubjectToMasterNettingArrangement	1246000000	usd
CY2024Q3	bk	Securities Lending Indemnifications Joint Venture SecuritiesLendingIndemnificationsJointVenture	67000000000	usd
CY2024Q3	bk	Securities Lending Indemnifications Collateral Joint Venture SecuritiesLendingIndemnificationsCollateralJointVenture	71000000000	usd
	dei	Current Fiscal Year End Date CurrentFiscalYearEndDate	--12-31
	bk	Value At Risk Assumed Holding Period For Instruments ValueAtRiskAssumedHoldingPeriodForInstruments	P1D
	dei	Document Quarterly Report DocumentQuarterlyReport	true
	dei	Entity Registrant Name EntityRegistrantName	THE BANK OF NEW YORK MELLON CORPORATION
	bk	Financing Related Fees FinancingRelatedFees	163000000	usd
	bk	Financing Related Fees FinancingRelatedFees	147000000	usd
CY2024Q3	bk	Distribution And Servicing DistributionAndServicing	38000000	usd
CY2024Q2	bk	Distribution And Servicing DistributionAndServicing	41000000	usd
CY2023Q3	bk	Total Fee Revenue TotalFeeRevenue	3245000000	usd
	bk	Total Fee Revenue TotalFeeRevenue	10107000000	usd
	bk	Total Fee Revenue TotalFeeRevenue	9658000000	usd
CY2024Q3	bk	Investment And Other Income InvestmentAndOtherIncome	196000000	usd
CY2024Q2	bk	Investment And Other Income InvestmentAndOtherIncome	169000000	usd
CY2023Q3	bk	Investment And Other Income InvestmentAndOtherIncome	159000000	usd
	bk	Investment And Other Income InvestmentAndOtherIncome	547000000	usd
	bk	Investment And Other Income InvestmentAndOtherIncome	437000000	usd
CY2024Q3	us-gaap	Noninterest Income NoninterestIncome	3600000000	usd
CY2024Q2	us-gaap	Noninterest Income NoninterestIncome	3567000000	usd
CY2023Q3	us-gaap	Noninterest Income NoninterestIncome	3404000000	usd
	us-gaap	Noninterest Income NoninterestIncome	10654000000	usd
	us-gaap	Noninterest Income NoninterestIncome	10095000000	usd
	us-gaap	Interest And Dividend Income Operating InterestAndDividendIncomeOperating	19140000000	usd
	us-gaap	Interest And Dividend Income Operating InterestAndDividendIncomeOperating	14685000000	usd
CY2024Q3	us-gaap	Interest Expense Operating InterestExpenseOperating	5604000000	usd
CY2024Q2	us-gaap	Interest Expense Operating InterestExpenseOperating	5362000000	usd
CY2023Q3	us-gaap	Interest Expense Operating InterestExpenseOperating	4503000000	usd
	us-gaap	Interest Expense Operating InterestExpenseOperating	16022000000	usd
	us-gaap	Interest Expense Operating InterestExpenseOperating	11441000000	usd
CY2024Q2	us-gaap	Participating Securities Distributed And Undistributed Earnings Loss Diluted ParticipatingSecuritiesDistributedAndUndistributedEarningsLossDiluted	0	usd
CY2024Q2	us-gaap	Participating Securities Distributed And Undistributed Earnings Loss Basic ParticipatingSecuritiesDistributedAndUndistributedEarningsLossBasic	0	usd
	us-gaap	Participating Securities Distributed And Undistributed Earnings Loss Basic ParticipatingSecuritiesDistributedAndUndistributedEarningsLossBasic	0	usd
	us-gaap	Participating Securities Distributed And Undistributed Earnings Loss Diluted ParticipatingSecuritiesDistributedAndUndistributedEarningsLossDiluted	0	usd
	us-gaap	Participating Securities Distributed And Undistributed Earnings Loss Basic ParticipatingSecuritiesDistributedAndUndistributedEarningsLossBasic	0	usd
	us-gaap	Participating Securities Distributed And Undistributed Earnings Loss Diluted ParticipatingSecuritiesDistributedAndUndistributedEarningsLossDiluted	0	usd
CY2023Q3	bk	Net Income Loss Available To Common Shareholders Diluted After Required Adjustments NetIncomeLossAvailableToCommonShareholdersDilutedAfterRequiredAdjustments	958000000	usd
CY2023Q3	bk	Net Income Loss Available To Common Shareholders Basic After Required Adjustments NetIncomeLossAvailableToCommonShareholdersBasicAfterRequiredAdjustments	958000000	usd
	bk	Net Income Loss Available To Common Shareholders Diluted After Required Adjustments NetIncomeLossAvailableToCommonShareholdersDilutedAfterRequiredAdjustments	2905000000	usd
	bk	Net Income Loss Available To Common Shareholders Basic After Required Adjustments NetIncomeLossAvailableToCommonShareholdersBasicAfterRequiredAdjustments	2905000000	usd
CY2024Q2	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.52
CY2023Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.23
	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	3.66
	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Net Of Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax	15000000	usd
CY2023Q3	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax	-15000000	usd
	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	1031000000	usd
	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	161000000	usd
CY2024Q3	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	2227000000	usd
CY2024Q2	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	1146000000	usd
CY2023Q3	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	840000000	usd
	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	4417000000	usd
	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	4401000000	usd
CY2024Q3	us-gaap	Trading Securities TradingSecurities	12459000000	usd
CY2024Q3	us-gaap	Other Assets Fair Value Disclosure OtherAssetsFairValueDisclosure	1556000000	usd
CY2023Q4	us-gaap	Preferred Stock Shares Authorized PreferredStockSharesAuthorized	100000000	shares
CY2023Q4	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	1402429447	shares
CY2024Q3	us-gaap	Treasury Stock Value TreasuryStockValue	29484000000	usd
	bk	Proceeds From Prepayments And Calls Of Held To Maturity Securities ProceedsFromPrepaymentsAndCallsOfHeldToMaturitySecurities	3540000000	usd
	bk	Proceeds From Maturities And Calls Of Held To Maturity Securities ProceedsFromMaturitiesAndCallsOfHeldToMaturitySecurities	2148000000	usd
	us-gaap	Proceeds From Repayments Of Other Debt ProceedsFromRepaymentsOfOtherDebt	342000000	usd
	us-gaap	Interest Paid Net InterestPaidNet	11196000000	usd
CY2024Q3	us-gaap	Minority Interest Period Increase Decrease MinorityInterestPeriodIncreaseDecrease	100000000	usd
CY2024Q3	us-gaap	Profit Loss ProfitLoss	1189000000	usd
CY2024Q3	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	1033000000	usd
CY2024Q3	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	42283000000	usd
CY2024Q1	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	40680000000	usd
CY2024Q2	us-gaap	Minority Interest Period Increase Decrease MinorityInterestPeriodIncreaseDecrease	75000000	usd
CY2024Q2	us-gaap	Profit Loss ProfitLoss	1170000000	usd
CY2024Q2	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	-24000000	usd
CY2024Q2	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	0.42
CY2024Q2	us-gaap	Dividends Common Stock DividendsCommonStock	322000000	usd
CY2024Q2	us-gaap	Dividends Preferred Stock DividendsPreferredStock	25000000	usd
CY2024Q2	us-gaap	Treasury Stock Value Acquired Cost Method TreasuryStockValueAcquiredCostMethod	601000000	usd
CY2024Q2	us-gaap	Stock Issued During Period Value Employee Benefit Plan StockIssuedDuringPeriodValueEmployeeBenefitPlan	5000000	usd
CY2024Q2	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	77000000	usd
CY2024Q2	bk	Excise Tax On Share Repurchase ExciseTaxOnShareRepurchase	6000000	usd
CY2024Q2	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	41029000000	usd
CY2023Q2	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	40889000000	usd
CY2023Q3	us-gaap	Minority Interest Period Increase Decrease MinorityInterestPeriodIncreaseDecrease	-11000000	usd
CY2023Q3	us-gaap	Profit Loss ProfitLoss	1043000000	usd
CY2023Q3	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	-203000000	usd
CY2023Q3	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	0.42
CY2023Q3	us-gaap	Dividends Common Stock DividendsCommonStock	333000000	usd
CY2023Q3	us-gaap	Dividends Preferred Stock DividendsPreferredStock	82000000	usd
CY2023Q3	us-gaap	Treasury Stock Value Acquired Cost Method TreasuryStockValueAcquiredCostMethod	450000000	usd
CY2023Q3	us-gaap	Stock Issued During Period Value Employee Benefit Plan StockIssuedDuringPeriodValueEmployeeBenefitPlan	5000000	usd
CY2023Q3	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	61000000	usd
CY2023Q3	bk	Excise Tax On Share Repurchase ExciseTaxOnShareRepurchase	4000000	usd
CY2023Q3	us-gaap	Stockholders Equity Other StockholdersEquityOther	1000000	usd
CY2023Q3	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	40914000000	usd
CY2023Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	40820000000	usd
	us-gaap	Minority Interest Period Increase Decrease MinorityInterestPeriodIncreaseDecrease	229000000	usd
	us-gaap	Profit Loss ProfitLoss	3386000000	usd
	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	1026000000	usd
	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	1.31
	us-gaap	Dividends Common Stock DividendsCommonStock	999000000	usd
	us-gaap	Dividends Preferred Stock DividendsPreferredStock	169000000	usd
	us-gaap	Treasury Stock Value Acquired Cost Method TreasuryStockValueAcquiredCostMethod	2314000000	usd
	us-gaap	Stock Issued During Period Value Employee Benefit Plan StockIssuedDuringPeriodValueEmployeeBenefitPlan	17000000	usd
	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	329000000	usd
	bk	Excise Tax On Share Repurchase ExciseTaxOnShareRepurchase	19000000	usd
	us-gaap	Stockholders Equity Other StockholdersEquityOther	23000000	usd
CY2024Q3	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	42283000000	usd
CY2022Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	40620000000	usd
	us-gaap	Minority Interest Period Increase Decrease MinorityInterestPeriodIncreaseDecrease	40000000	usd
	us-gaap	Profit Loss ProfitLoss	3098000000	usd
	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	161000000	usd
	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	1.16
	us-gaap	Dividends Common Stock DividendsCommonStock	934000000	usd
	us-gaap	Dividends Preferred Stock DividendsPreferredStock	189000000	usd
	us-gaap	Treasury Stock Value Acquired Cost Method TreasuryStockValueAcquiredCostMethod	2154000000	usd
	us-gaap	Stock Issued During Period Value Employee Benefit Plan StockIssuedDuringPeriodValueEmployeeBenefitPlan	15000000	usd
	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	275000000	usd
	bk	Excise Tax On Share Repurchase ExciseTaxOnShareRepurchase	18000000	usd
CY2023Q3	bk	Investment And Other Income InvestmentAndOtherIncome	159000000	usd
	bk	Investment And Other Income InvestmentAndOtherIncome	437000000	usd
CY2023Q3	us-gaap	Noninterest Income NoninterestIncome	3404000000	usd
	us-gaap	Noninterest Income NoninterestIncome	10095000000	usd
CY2023Q3	bk	Total Revenues Including Revenue Generated By Variable Interest Entities TotalRevenuesIncludingRevenueGeneratedByVariableInterestEntities	4420000000	usd
	bk	Total Revenues Including Revenue Generated By Variable Interest Entities TotalRevenuesIncludingRevenueGeneratedByVariableInterestEntities	13339000000	usd
CY2023Q3	bk	Income Loss From Continuing Operations Before Income Taxes IncomeLossFromContinuingOperationsBeforeIncomeTaxes	1328000000	usd
	bk	Income Loss From Continuing Operations Before Income Taxes IncomeLossFromContinuingOperationsBeforeIncomeTaxes	4004000000	usd
CY2023Q3	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	285000000	usd
	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	906000000	usd
CY2023Q3	us-gaap	Profit Loss ProfitLoss	1043000000	usd
	us-gaap	Profit Loss ProfitLoss	3098000000	usd
CY2023Q3	us-gaap	Net Income Loss NetIncomeLoss	1040000000	usd
	us-gaap	Net Income Loss NetIncomeLoss	3094000000	usd
CY2023Q3	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	958000000	usd
	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	2905000000	usd
CY2023Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.23
	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	3.68
CY2023Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.23
	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	3.66
CY2023Q3	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	39714000000	usd
	us-gaap	Payments For Previous Acquisition PaymentsForPreviousAcquisition	5000000	usd
	us-gaap	Business Combination Contingent Consideration Arrangements Change In Amount Of Contingent Consideration Liability1 BusinessCombinationContingentConsiderationArrangementsChangeInAmountOfContingentConsiderationLiability1	-1000000	usd
CY2024Q3	bk	Business Combination Contingent Consideration Arrangement Asset Range Of Outcomes Value Low BusinessCombinationContingentConsiderationArrangementAssetRangeOfOutcomesValueLow	0	usd
CY2024Q3	bk	Business Combination Contingent Consideration Arrangement Asset Range Of Outcomes Value High BusinessCombinationContingentConsiderationArrangementAssetRangeOfOutcomesValueHigh	25000000	usd
CY2024Q3	us-gaap	Disposal Group Including Discontinued Operation Consideration DisposalGroupIncludingDiscontinuedOperationConsideration	18000000	usd
CY2024Q3	us-gaap	Debt Securities Available For Sale Amortized Cost After Allowance For Credit Loss DebtSecuritiesAvailableForSaleAmortizedCostAfterAllowanceForCreditLoss	99096000000	usd
CY2024Q3	us-gaap	Available For Sale Debt Securities Accumulated Gross Unrealized Gain Before Tax AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax	761000000	usd
CY2024Q3	us-gaap	Available For Sale Debt Securities Accumulated Gross Unrealized Loss Before Tax AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax	2928000000	usd
CY2024Q3	us-gaap	Available For Sale Securities Debt Securities AvailableForSaleSecuritiesDebtSecurities	96929000000	usd
CY2024Q3	us-gaap	Held To Maturity Securities HeldToMaturitySecurities	44947000000	usd
CY2024Q3	us-gaap	Held To Maturity Securities Accumulated Unrecognized Holding Gain HeldToMaturitySecuritiesAccumulatedUnrecognizedHoldingGain	18000000	usd
CY2024Q3	us-gaap	Held To Maturity Securities Accumulated Unrecognized Holding Loss HeldToMaturitySecuritiesAccumulatedUnrecognizedHoldingLoss	3675000000	usd
CY2024Q3	us-gaap	Held To Maturity Securities Fair Value HeldToMaturitySecuritiesFairValue	41290000000	usd
CY2024Q3	us-gaap	Debt Securities Available For Sale And Held To Maturity DebtSecuritiesAvailableForSaleAndHeldToMaturity	144043000000	usd
CY2024Q3	bk	Debt Securities Availableforsaleand Heldtomaturity Unrealized Gain DebtSecuritiesAvailableforsaleandHeldtomaturityUnrealizedGain	779000000	usd
CY2024Q3	bk	Debt Securities Availableforsaleand Heldtomaturity Unrealized Loss DebtSecuritiesAvailableforsaleandHeldtomaturityUnrealizedLoss	6603000000	usd
CY2024Q3	us-gaap	Debt Securities Available For Sale And Held To Maturity Fair Value DebtSecuritiesAvailableForSaleAndHeldToMaturityFairValue	138219000000	usd
CY2024Q3	us-gaap	Debt Securities Available For Sale Allowance For Credit Loss DebtSecuritiesAvailableForSaleAllowanceForCreditLoss	0	usd
CY2024Q3	us-gaap	Debt Securities Held To Maturity Allowance For Credit Loss DebtSecuritiesHeldToMaturityAllowanceForCreditLoss	1000000	usd
CY2024Q3	bk	Accumulated Other Comprehensive Income Transfers From Available For Saleto Held To Maturity Securities Gross Unrealized Gains AccumulatedOtherComprehensiveIncomeTransfersFromAvailableForSaletoHeldToMaturitySecuritiesGrossUnrealizedGains	191000000	usd
CY2024Q3	bk	Accumulated Other Comprehensive Income Transfers From Available For Sale To Held To Maturity Securities Gross Unrealized Loss AccumulatedOtherComprehensiveIncomeTransfersFromAvailableForSaleToHeldToMaturitySecuritiesGrossUnrealizedLoss	122000000	usd
CY2023Q4	us-gaap	Debt Securities Available For Sale Amortized Cost After Allowance For Credit Loss DebtSecuritiesAvailableForSaleAmortizedCostAfterAllowanceForCreditLoss	80678000000	usd
CY2023Q4	us-gaap	Available For Sale Debt Securities Accumulated Gross Unrealized Gain Before Tax AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax	425000000	usd
CY2023Q4	us-gaap	Available For Sale Debt Securities Accumulated Gross Unrealized Loss Before Tax AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax	4286000000	usd
CY2023Q4	us-gaap	Available For Sale Securities Debt Securities AvailableForSaleSecuritiesDebtSecurities	76817000000	usd
CY2023Q4	us-gaap	Held To Maturity Securities HeldToMaturitySecurities	49578000000	usd
CY2023Q4	us-gaap	Held To Maturity Securities Accumulated Unrecognized Holding Gain HeldToMaturitySecuritiesAccumulatedUnrecognizedHoldingGain	6000000	usd
CY2023Q4	us-gaap	Held To Maturity Securities Accumulated Unrecognized Holding Loss HeldToMaturitySecuritiesAccumulatedUnrecognizedHoldingLoss	4873000000	usd
CY2023Q4	us-gaap	Held To Maturity Securities Fair Value HeldToMaturitySecuritiesFairValue	44711000000	usd
CY2023Q4	us-gaap	Debt Securities Available For Sale And Held To Maturity DebtSecuritiesAvailableForSaleAndHeldToMaturity	130256000000	usd
CY2023Q4	bk	Debt Securities Availableforsaleand Heldtomaturity Unrealized Gain DebtSecuritiesAvailableforsaleandHeldtomaturityUnrealizedGain	431000000	usd
CY2023Q4	bk	Debt Securities Availableforsaleand Heldtomaturity Unrealized Loss DebtSecuritiesAvailableforsaleandHeldtomaturityUnrealizedLoss	9159000000	usd
CY2023Q4	us-gaap	Debt Securities Available For Sale And Held To Maturity Fair Value DebtSecuritiesAvailableForSaleAndHeldToMaturityFairValue	121528000000	usd
CY2023Q4	us-gaap	Debt Securities Available For Sale And Held To Maturity Allowance For Credit Loss DebtSecuritiesAvailableForSaleAndHeldToMaturityAllowanceForCreditLoss	1000000	usd
CY2023Q4	bk	Accumulated Other Comprehensive Income Transfers From Available For Saleto Held To Maturity Securities Gross Unrealized Gains AccumulatedOtherComprehensiveIncomeTransfersFromAvailableForSaletoHeldToMaturitySecuritiesGrossUnrealizedGains	250000000	usd
CY2023Q4	bk	Accumulated Other Comprehensive Income Transfers From Available For Sale To Held To Maturity Securities Gross Unrealized Loss AccumulatedOtherComprehensiveIncomeTransfersFromAvailableForSaleToHeldToMaturitySecuritiesGrossUnrealizedLoss	146000000	usd
CY2024Q3	us-gaap	Debt Securities Available For Sale Realized Gain DebtSecuritiesAvailableForSaleRealizedGain	27000000	usd
CY2024Q2	us-gaap	Debt Securities Available For Sale Realized Gain DebtSecuritiesAvailableForSaleRealizedGain	6000000	usd
CY2023Q3	us-gaap	Debt Securities Available For Sale Realized Gain DebtSecuritiesAvailableForSaleRealizedGain	1000000	usd
	us-gaap	Debt Securities Available For Sale Realized Gain DebtSecuritiesAvailableForSaleRealizedGain	37000000	usd
	us-gaap	Debt Securities Available For Sale Realized Gain DebtSecuritiesAvailableForSaleRealizedGain	19000000	usd
CY2024Q3	us-gaap	Debt Securities Available For Sale Realized Loss DebtSecuritiesAvailableForSaleRealizedLoss	44000000	usd
CY2024Q2	us-gaap	Debt Securities Available For Sale Realized Loss DebtSecuritiesAvailableForSaleRealizedLoss	23000000	usd
CY2023Q3	us-gaap	Debt Securities Available For Sale Realized Loss DebtSecuritiesAvailableForSaleRealizedLoss	20000000	usd
	us-gaap	Debt Securities Available For Sale Realized Loss DebtSecuritiesAvailableForSaleRealizedLoss	72000000	usd
	us-gaap	Debt Securities Available For Sale Realized Loss DebtSecuritiesAvailableForSaleRealizedLoss	39000000	usd
CY2024Q3	us-gaap	Debt Securities Available For Sale Realized Gain Loss DebtSecuritiesAvailableForSaleRealizedGainLoss	-17000000	usd
CY2024Q2	us-gaap	Debt Securities Available For Sale Realized Gain Loss DebtSecuritiesAvailableForSaleRealizedGainLoss	-17000000	usd
CY2023Q3	us-gaap	Debt Securities Available For Sale Realized Gain Loss DebtSecuritiesAvailableForSaleRealizedGainLoss	-19000000	usd
	us-gaap	Debt Securities Available For Sale Realized Gain Loss DebtSecuritiesAvailableForSaleRealizedGainLoss	-35000000	usd
CY2024Q3	us-gaap	Debt Securities Available For Sale Realized Gain Loss DebtSecuritiesAvailableForSaleRealizedGainLoss	-17000000	usd
CY2024Q2	us-gaap	Debt Securities Available For Sale Realized Gain Loss DebtSecuritiesAvailableForSaleRealizedGainLoss	-17000000	usd
CY2023Q3	us-gaap	Debt Securities Available For Sale Realized Gain Loss DebtSecuritiesAvailableForSaleRealizedGainLoss	-19000000	usd
	us-gaap	Debt Securities Available For Sale Realized Gain Loss DebtSecuritiesAvailableForSaleRealizedGainLoss	-35000000	usd
	us-gaap	Debt Securities Available For Sale Realized Gain Loss DebtSecuritiesAvailableForSaleRealizedGainLoss	-20000000	usd
CY2024Q3	us-gaap	Debt Securities Available For Sale And Held To Maturity Allowance For Credit Loss DebtSecuritiesAvailableForSaleAndHeldToMaturityAllowanceForCreditLoss	1000000	usd
CY2023Q4	us-gaap	Debt Securities Available For Sale And Held To Maturity Allowance For Credit Loss DebtSecuritiesAvailableForSaleAndHeldToMaturityAllowanceForCreditLoss	1000000	usd
CY2024Q3	bk	Accumulated Other Comprehensive Income Transfers From Available For Sale To Held To Maturity Securities Gross Unrealized Loss AccumulatedOtherComprehensiveIncomeTransfersFromAvailableForSaleToHeldToMaturitySecuritiesGrossUnrealizedLoss	122000000	usd
CY2023Q4	bk	Accumulated Other Comprehensive Income Transfers From Available For Sale To Held To Maturity Securities Gross Unrealized Loss AccumulatedOtherComprehensiveIncomeTransfersFromAvailableForSaleToHeldToMaturitySecuritiesGrossUnrealizedLoss	146000000	usd
CY2024Q3	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position Less Than12 Months DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12Months	3487000000	usd
CY2024Q3	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position Less Than12 Months Accumulated Loss DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss	11000000	usd
CY2024Q3	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position12 Months Or Longer DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLonger	45467000000	usd
CY2024Q3	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position12 Months Or Longer Accumulated Loss DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss	2917000000	usd
CY2024Q3	us-gaap	Debt Securities Available For Sale Unrealized Loss Position DebtSecuritiesAvailableForSaleUnrealizedLossPosition	48954000000	usd
CY2024Q3	us-gaap	Debt Securities Available For Sale Unrealized Loss Position Accumulated Loss DebtSecuritiesAvailableForSaleUnrealizedLossPositionAccumulatedLoss	2928000000	usd
CY2024Q3	bk	Accumulated Other Comprehensive Income Transfers From Available For Sale To Held To Maturity Securities Gross Unrealized Losses Greater Than Twelve Months AccumulatedOtherComprehensiveIncomeTransfersFromAvailableForSaleToHeldToMaturitySecuritiesGrossUnrealizedLossesGreaterThanTwelveMonths	122000000	usd
CY2024Q3	bk	Accumulated Other Comprehensive Income Transfers From Available For Sale To Held To Maturity Securities Gross Unrealized Losses Lessthan Twelve Months AccumulatedOtherComprehensiveIncomeTransfersFromAvailableForSaleToHeldToMaturitySecuritiesGrossUnrealizedLossesLessthanTwelveMonths	0	usd
CY2023Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position Less Than12 Months DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12Months	8373000000	usd
CY2023Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position Less Than12 Months Accumulated Loss DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss	112000000	usd
CY2023Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position12 Months Or Longer DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLonger	53761000000	usd
CY2023Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position12 Months Or Longer Accumulated Loss DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss	4174000000	usd
CY2023Q4	us-gaap	Debt Securities Available For Sale Unrealized Loss Position DebtSecuritiesAvailableForSaleUnrealizedLossPosition	62134000000	usd
CY2023Q4	us-gaap	Debt Securities Available For Sale Unrealized Loss Position Accumulated Loss DebtSecuritiesAvailableForSaleUnrealizedLossPositionAccumulatedLoss	4286000000	usd
CY2023Q4	bk	Accumulated Other Comprehensive Income Transfers From Available For Sale To Held To Maturity Securities Gross Unrealized Losses Greater Than Twelve Months AccumulatedOtherComprehensiveIncomeTransfersFromAvailableForSaleToHeldToMaturitySecuritiesGrossUnrealizedLossesGreaterThanTwelveMonths	146000000	usd
CY2023Q4	bk	Accumulated Other Comprehensive Income Transfers From Available For Sale To Held To Maturity Securities Gross Unrealized Losses Lessthan Twelve Months AccumulatedOtherComprehensiveIncomeTransfersFromAvailableForSaleToHeldToMaturitySecuritiesGrossUnrealizedLossesLessthanTwelveMonths	0	usd
CY2024Q3	us-gaap	Held To Maturity Securities HeldToMaturitySecurities	44947000000	usd
CY2024Q3	bk	Debt Securities Heldtomaturity Accumulated Unrecognized Gain Loss DebtSecuritiesHeldtomaturityAccumulatedUnrecognizedGainLoss	-3657000000	usd
CY2024Q3	bk	Debt Securities Heldtomaturity Credit Quality Indicator Percent DebtSecuritiesHeldtomaturityCreditQualityIndicatorPercent	0
CY2023Q4	us-gaap	Held To Maturity Securities HeldToMaturitySecurities	49578000000	usd
CY2023Q4	bk	Debt Securities Heldtomaturity Accumulated Unrecognized Gain Loss DebtSecuritiesHeldtomaturityAccumulatedUnrecognizedGainLoss	-4867000000	usd
CY2023Q4	bk	Debt Securities Heldtomaturity Credit Quality Indicator Percent DebtSecuritiesHeldtomaturityCreditQualityIndicatorPercent	0
CY2024Q3	us-gaap	Available For Sale Securities Debt Maturities Within One Year Fair Value AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearFairValue	7593000000	usd
CY2024Q3	us-gaap	Debt Securities Available For Sale Maturity Within One Year Weighted Average Yield DebtSecuritiesAvailableForSaleMaturityWithinOneYearWeightedAverageYield	0.0249
CY2024Q3	us-gaap	Available For Sale Securities Debt Maturities After One Through Five Years Fair Value AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsFairValue	42116000000	usd
CY2024Q3	us-gaap	Debt Securities Available For Sale Maturity After One Through Five Years Weighted Average Yield DebtSecuritiesAvailableForSaleMaturityAfterOneThroughFiveYearsWeightedAverageYield	0.0278
CY2024Q3	us-gaap	Available For Sale Securities Debt Maturities After Five Through Ten Years Fair Value AvailableForSaleSecuritiesDebtMaturitiesAfterFiveThroughTenYearsFairValue	7016000000	usd
CY2024Q3	us-gaap	Debt Securities Available For Sale Maturity After Five Through Ten Years Weighted Average Yield DebtSecuritiesAvailableForSaleMaturityAfterFiveThroughTenYearsWeightedAverageYield	0.0263
CY2024Q3	us-gaap	Available For Sale Securities Debt Maturities After Ten Years Fair Value AvailableForSaleSecuritiesDebtMaturitiesAfterTenYearsFairValue	2225000000	usd
CY2024Q3	us-gaap	Debt Securities Available For Sale Maturity After10 Years Weighted Average Yield DebtSecuritiesAvailableForSaleMaturityAfter10YearsWeightedAverageYield	0.0293
CY2024Q3	us-gaap	Available For Sale Securities Debt Securities AvailableForSaleSecuritiesDebtSecurities	96929000000	usd
CY2024Q3	bk	Available For Sale Securities Weighted Average Yield AvailableForSaleSecuritiesWeightedAverageYield	0.0351
CY2024Q3	us-gaap	Held To Maturity Securities Debt Maturities Within One Year Net Carrying Amount HeldToMaturitySecuritiesDebtMaturitiesWithinOneYearNetCarryingAmount	4143000000	usd
CY2024Q3	us-gaap	Debt Securities Held To Maturity Maturity Within One Year Weighted Average Yield DebtSecuritiesHeldToMaturityMaturityWithinOneYearWeightedAverageYield	0.0126
CY2024Q3	us-gaap	Held To Maturity Securities Debt Maturities After One Through Five Years Net Carrying Amount HeldToMaturitySecuritiesDebtMaturitiesAfterOneThroughFiveYearsNetCarryingAmount	8075000000	usd
CY2024Q3	us-gaap	Debt Securities Held To Maturity Maturity After One Through Five Years Weighted Average Yield DebtSecuritiesHeldToMaturityMaturityAfterOneThroughFiveYearsWeightedAverageYield	0.0131
CY2024Q3	us-gaap	Held To Maturity Securities Debt Maturities After Five Through Ten Years Net Carrying Amount HeldToMaturitySecuritiesDebtMaturitiesAfterFiveThroughTenYearsNetCarryingAmount	1200000000	usd
CY2024Q3	us-gaap	Debt Securities Held To Maturity Maturity After Five Through Ten Years Weighted Average Yield DebtSecuritiesHeldToMaturityMaturityAfterFiveThroughTenYearsWeightedAverageYield	0.0115
CY2024Q3	us-gaap	Held To Maturity Securities Debt Maturities After Ten Years Net Carrying Amount HeldToMaturitySecuritiesDebtMaturitiesAfterTenYearsNetCarryingAmount	213000000	usd
CY2024Q3	us-gaap	Debt Securities Held To Maturity Maturity After10 Years Weighted Average Yield DebtSecuritiesHeldToMaturityMaturityAfter10YearsWeightedAverageYield	0.0199
CY2024Q3	us-gaap	Held To Maturity Securities HeldToMaturitySecurities	44947000000	usd
CY2024Q3	bk	Held To Maturity Securities Debt Maturities Average Yield HeldToMaturitySecuritiesDebtMaturitiesAverageYield	0.0214
CY2024Q3	bk	Debt Securities Amortized Cost Maturity Allocated And Single Maturity Date Year One DebtSecuritiesAmortizedCostMaturityAllocatedAndSingleMaturityDateYearOne	11736000000	usd
CY2024Q3	bk	Debt Securities Weighted Average Yield Maturity Year One DebtSecuritiesWeightedAverageYieldMaturityYearOne	0.0206
CY2024Q3	bk	Debt Securities Amortized Cost Maturity Allocated And Single Maturity Date After Year One DebtSecuritiesAmortizedCostMaturityAllocatedAndSingleMaturityDateAfterYearOne	50191000000	usd
CY2024Q3	bk	Debt Securities Weighted Average Yield Maturity After Year One Through Five DebtSecuritiesWeightedAverageYieldMaturityAfterYearOneThroughFive	0.0255
CY2024Q3	bk	Debt Securities Amortized Cost Maturity Allocated And Single Maturity Date After Year Five Through Ten DebtSecuritiesAmortizedCostMaturityAllocatedAndSingleMaturityDateAfterYearFiveThroughTen	8216000000	usd
CY2024Q3	bk	Debt Securities Weighted Average Yield Maturity After Year5 Through10 DebtSecuritiesWeightedAverageYieldMaturityAfterYear5Through10	0.0242
CY2024Q3	bk	Debt Securities Amortized Cost Maturity Allocated And Single Maturity Date After Year10 DebtSecuritiesAmortizedCostMaturityAllocatedAndSingleMaturityDateAfterYear10	2438000000	usd
CY2024Q3	bk	Debt Securities Weighted Average Yield Maturity After Year10 DebtSecuritiesWeightedAverageYieldMaturityAfterYear10	0.0286
CY2024Q3	bk	Debt Securities Amortized Cost Maturity Before Allowance For Credit Loss DebtSecuritiesAmortizedCostMaturityBeforeAllowanceForCreditLoss	141876000000	usd
CY2024Q3	bk	Securities Debt Maturities Average Yield SecuritiesDebtMaturitiesAverageYield	0.0308
CY2024Q3	us-gaap	Customer Securities For Which Entity Has Right To Sell Or Repledge Fair Value CustomerSecuritiesForWhichEntityHasRightToSellOrRepledgeFairValue	306000000000	usd
CY2023Q4	us-gaap	Customer Securities For Which Entity Has Right To Sell Or Repledge Fair Value CustomerSecuritiesForWhichEntityHasRightToSellOrRepledgeFairValue	212000000000	usd
CY2024Q3	us-gaap	Fair Value Of Securities Received As Collateral That Have Been Resold Or Repledged FairValueOfSecuritiesReceivedAsCollateralThatHaveBeenResoldOrRepledged	278000000000	usd
CY2023Q4	us-gaap	Fair Value Of Securities Received As Collateral That Have Been Resold Or Repledged FairValueOfSecuritiesReceivedAsCollateralThatHaveBeenResoldOrRepledged	180000000000	usd
CY2024Q3	us-gaap	Restricted Cash RestrictedCash	2000000000	usd
CY2023Q4	us-gaap	Restricted Cash RestrictedCash	3000000000	usd
CY2024Q3	us-gaap	Securities Segregated Under Other Regulations SecuritiesSegregatedUnderOtherRegulations	3000000000	usd
CY2023Q4	us-gaap	Securities Segregated Under Other Regulations SecuritiesSegregatedUnderOtherRegulations	3000000000	usd
CY2024Q3	us-gaap	Notes Receivable Gross NotesReceivableGross	69451000000	usd
CY2023Q4	us-gaap	Notes Receivable Gross NotesReceivableGross	66879000000	usd
CY2024Q3	us-gaap	Financing Receivable Unamortized Loan Fee Cost FinancingReceivableUnamortizedLoanFeeCost	241000000	usd
CY2023Q4	us-gaap	Financing Receivable Unamortized Loan Fee Cost FinancingReceivableUnamortizedLoanFeeCost	268000000	usd
CY2024Q2	bk	Financing Receivable Allowance For Credit Loss And Off Balance Sheet Credit Loss Liability FinancingReceivableAllowanceForCreditLossAndOffBalanceSheetCreditLossLiability	359000000	usd
CY2024Q3	bk	Financing Receivable Allowance For Credit Loss And Off Balance Sheet Credit Loss Liability Writeoff FinancingReceivableAllowanceForCreditLossAndOffBalanceSheetCreditLossLiabilityWriteoff	10000000	usd
CY2024Q3	bk	Financing Receivable Allowance For Credit Loss And Off Balance Sheet Credit Loss Liability Recovery FinancingReceivableAllowanceForCreditLossAndOffBalanceSheetCreditLossLiabilityRecovery	0	usd
CY2024Q3	bk	Financing Receivable Allowance For Credit Loss And Off Balance Sheet Credit Loss Liability Writeoff After Recovery FinancingReceivableAllowanceForCreditLossAndOffBalanceSheetCreditLossLiabilityWriteoffAfterRecovery	10000000	usd
CY2024Q3	bk	Financing Receivable Allowance For Credit Loss And Off Balance Sheet Credit Loss Liability Expense Reversal FinancingReceivableAllowanceForCreditLossAndOffBalanceSheetCreditLossLiabilityExpenseReversal	22000000	usd
CY2024Q3	bk	Financing Receivable Allowance For Credit Loss And Off Balance Sheet Credit Loss Liability FinancingReceivableAllowanceForCreditLossAndOffBalanceSheetCreditLossLiability	371000000	usd
CY2024Q3	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	296000000	usd
CY2024Q3	us-gaap	Off Balance Sheet Credit Loss Liability OffBalanceSheetCreditLossLiability	75000000	usd
CY2024Q3	us-gaap	Financing Receivable Individually Evaluated For Impairment FinancingReceivableIndividuallyEvaluatedForImpairment	286000000	usd
CY2024Q3	us-gaap	Financing Receivable Allowance For Credit Losses Individually Evaluated For Impairment1 FinancingReceivableAllowanceForCreditLossesIndividuallyEvaluatedForImpairment1	64000000	usd
CY2024Q3	us-gaap	Provision For Other Credit Losses ProvisionForOtherCreditLosses	1000000	usd
CY2024Q3	us-gaap	Securities Loaned Fair Value Of Collateral SecuritiesLoanedFairValueOfCollateral	291000000	usd
CY2024Q1	bk	Financing Receivable Allowance For Credit Loss And Off Balance Sheet Credit Loss Liability FinancingReceivableAllowanceForCreditLossAndOffBalanceSheetCreditLossLiability	403000000	usd
CY2024Q2	bk	Financing Receivable Allowance For Credit Loss And Off Balance Sheet Credit Loss Liability Writeoff FinancingReceivableAllowanceForCreditLossAndOffBalanceSheetCreditLossLiabilityWriteoff	43000000	usd
CY2024Q2	bk	Financing Receivable Allowance For Credit Loss And Off Balance Sheet Credit Loss Liability Recovery FinancingReceivableAllowanceForCreditLossAndOffBalanceSheetCreditLossLiabilityRecovery	0	usd
CY2024Q2	bk	Financing Receivable Allowance For Credit Loss And Off Balance Sheet Credit Loss Liability Writeoff After Recovery FinancingReceivableAllowanceForCreditLossAndOffBalanceSheetCreditLossLiabilityWriteoffAfterRecovery	43000000	usd
CY2024Q2	bk	Financing Receivable Allowance For Credit Loss And Off Balance Sheet Credit Loss Liability Expense Reversal FinancingReceivableAllowanceForCreditLossAndOffBalanceSheetCreditLossLiabilityExpenseReversal	-1000000	usd
CY2024Q2	bk	Financing Receivable Allowance For Credit Loss And Off Balance Sheet Credit Loss Liability FinancingReceivableAllowanceForCreditLossAndOffBalanceSheetCreditLossLiability	359000000	usd
CY2024Q2	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	286000000	usd
CY2024Q2	us-gaap	Off Balance Sheet Credit Loss Liability OffBalanceSheetCreditLossLiability	73000000	usd
CY2024Q2	us-gaap	Financing Receivable Individually Evaluated For Impairment FinancingReceivableIndividuallyEvaluatedForImpairment	301000000	usd
CY2024Q2	us-gaap	Financing Receivable Allowance For Credit Losses Individually Evaluated For Impairment1 FinancingReceivableAllowanceForCreditLossesIndividuallyEvaluatedForImpairment1	73000000	usd
CY2024Q2	us-gaap	Provision For Other Credit Losses ProvisionForOtherCreditLosses	1000000	usd
CY2024Q2	us-gaap	Securities Loaned Fair Value Of Collateral SecuritiesLoanedFairValueOfCollateral	265000000	usd
CY2023Q2	bk	Financing Receivable Allowance For Credit Loss And Off Balance Sheet Credit Loss Liability FinancingReceivableAllowanceForCreditLossAndOffBalanceSheetCreditLossLiability	282000000	usd
CY2023Q3	bk	Financing Receivable Allowance For Credit Loss And Off Balance Sheet Credit Loss Liability Writeoff FinancingReceivableAllowanceForCreditLossAndOffBalanceSheetCreditLossLiabilityWriteoff	0	usd
CY2023Q3	bk	Financing Receivable Allowance For Credit Loss And Off Balance Sheet Credit Loss Liability Recovery FinancingReceivableAllowanceForCreditLossAndOffBalanceSheetCreditLossLiabilityRecovery	0	usd
CY2023Q3	bk	Financing Receivable Allowance For Credit Loss And Off Balance Sheet Credit Loss Liability Writeoff After Recovery FinancingReceivableAllowanceForCreditLossAndOffBalanceSheetCreditLossLiabilityWriteoffAfterRecovery	0	usd
CY2023Q3	bk	Financing Receivable Allowance For Credit Loss And Off Balance Sheet Credit Loss Liability Expense Reversal FinancingReceivableAllowanceForCreditLossAndOffBalanceSheetCreditLossLiabilityExpenseReversal	14000000	usd
CY2023Q3	bk	Financing Receivable Allowance For Credit Loss And Off Balance Sheet Credit Loss Liability FinancingReceivableAllowanceForCreditLossAndOffBalanceSheetCreditLossLiability	296000000	usd
CY2023Q3	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	211000000	usd
CY2023Q3	us-gaap	Off Balance Sheet Credit Loss Liability OffBalanceSheetCreditLossLiability	85000000	usd
CY2023Q3	us-gaap	Financing Receivable Individually Evaluated For Impairment FinancingReceivableIndividuallyEvaluatedForImpairment	117000000	usd
CY2023Q3	us-gaap	Financing Receivable Allowance For Credit Losses Individually Evaluated For Impairment1 FinancingReceivableAllowanceForCreditLossesIndividuallyEvaluatedForImpairment1	2000000	usd
CY2023Q3	us-gaap	Provision For Other Credit Losses ProvisionForOtherCreditLosses	-11000000	usd
CY2023Q3	us-gaap	Securities Loaned Fair Value Of Collateral SecuritiesLoanedFairValueOfCollateral	198000000	usd
CY2023Q4	bk	Financing Receivable Allowance For Credit Loss And Off Balance Sheet Credit Loss Liability FinancingReceivableAllowanceForCreditLossAndOffBalanceSheetCreditLossLiability	390000000	usd
	bk	Financing Receivable Allowance For Credit Loss And Off Balance Sheet Credit Loss Liability Writeoff FinancingReceivableAllowanceForCreditLossAndOffBalanceSheetCreditLossLiabilityWriteoff	54000000	usd
	bk	Financing Receivable Allowance For Credit Loss And Off Balance Sheet Credit Loss Liability Recovery FinancingReceivableAllowanceForCreditLossAndOffBalanceSheetCreditLossLiabilityRecovery	0	usd
	bk	Financing Receivable Allowance For Credit Loss And Off Balance Sheet Credit Loss Liability Writeoff After Recovery FinancingReceivableAllowanceForCreditLossAndOffBalanceSheetCreditLossLiabilityWriteoffAfterRecovery	54000000	usd
	bk	Financing Receivable Allowance For Credit Loss And Off Balance Sheet Credit Loss Liability Expense Reversal FinancingReceivableAllowanceForCreditLossAndOffBalanceSheetCreditLossLiabilityExpenseReversal	35000000	usd
CY2024Q3	bk	Financing Receivable Allowance For Credit Loss And Off Balance Sheet Credit Loss Liability FinancingReceivableAllowanceForCreditLossAndOffBalanceSheetCreditLossLiability	371000000	usd
	us-gaap	Provision For Other Credit Losses ProvisionForOtherCreditLosses	15000000	usd
CY2022Q4	bk	Financing Receivable Allowance For Credit Loss And Off Balance Sheet Credit Loss Liability FinancingReceivableAllowanceForCreditLossAndOffBalanceSheetCreditLossLiability	254000000	usd
	bk	Financing Receivable Allowance For Credit Loss And Off Balance Sheet Credit Loss Liability Writeoff FinancingReceivableAllowanceForCreditLossAndOffBalanceSheetCreditLossLiabilityWriteoff	3000000	usd
	bk	Financing Receivable Allowance For Credit Loss And Off Balance Sheet Credit Loss Liability Recovery FinancingReceivableAllowanceForCreditLossAndOffBalanceSheetCreditLossLiabilityRecovery	3000000	usd
	bk	Financing Receivable Allowance For Credit Loss And Off Balance Sheet Credit Loss Liability Writeoff After Recovery FinancingReceivableAllowanceForCreditLossAndOffBalanceSheetCreditLossLiabilityWriteoffAfterRecovery	0	usd
	bk	Financing Receivable Allowance For Credit Loss And Off Balance Sheet Credit Loss Liability Expense Reversal FinancingReceivableAllowanceForCreditLossAndOffBalanceSheetCreditLossLiabilityExpenseReversal	42000000	usd
CY2023Q3	bk	Financing Receivable Allowance For Credit Loss And Off Balance Sheet Credit Loss Liability FinancingReceivableAllowanceForCreditLossAndOffBalanceSheetCreditLossLiability	296000000	usd
	us-gaap	Provision For Other Credit Losses ProvisionForOtherCreditLosses	-7000000	usd
CY2024Q3	us-gaap	Financing Receivable Recorded Investment90 Days Past Due And Still Accruing FinancingReceivableRecordedInvestment90DaysPastDueAndStillAccruing	198000000	usd
CY2024Q3	us-gaap	Financing Receivable Nonaccrual No Allowance FinancingReceivableNonaccrualNoAllowance	13000000	usd
CY2024Q3	us-gaap	Financing Receivable Recorded Investment Nonaccrual Status FinancingReceivableRecordedInvestmentNonaccrualStatus	211000000	usd
CY2023Q4	us-gaap	Financing Receivable Recorded Investment90 Days Past Due And Still Accruing FinancingReceivableRecordedInvestment90DaysPastDueAndStillAccruing	219000000	usd
CY2023Q4	us-gaap	Financing Receivable Nonaccrual No Allowance FinancingReceivableNonaccrualNoAllowance	13000000	usd
CY2023Q4	us-gaap	Financing Receivable Recorded Investment Nonaccrual Status FinancingReceivableRecordedInvestmentNonaccrualStatus	232000000	usd
CY2024Q3	bk	Financing Receivable90 Daysor More Past Due Still Accruing Other Assets Owned FinancingReceivable90DaysorMorePastDueStillAccruingOtherAssetsOwned	0	usd
CY2024Q3	bk	Financing Receivable Nonaccrual No Allowance Other Assets Owned FinancingReceivableNonaccrualNoAllowanceOtherAssetsOwned	0	usd
CY2024Q3	bk	Other Nonperforming Assets OtherNonperformingAssets	0	usd
CY2023Q4	bk	Financing Receivable90 Daysor More Past Due Still Accruing Other Assets Owned FinancingReceivable90DaysorMorePastDueStillAccruingOtherAssetsOwned	0	usd
CY2023Q4	bk	Financing Receivable Nonaccrual No Allowance Other Assets Owned FinancingReceivableNonaccrualNoAllowanceOtherAssetsOwned	5000000	usd
CY2023Q4	bk	Other Nonperforming Assets OtherNonperformingAssets	5000000	usd
CY2024Q3	bk	Financing Receivable90 Daysor More Past Due Still Accruing Nonperforming Assets FinancingReceivable90DaysorMorePastDueStillAccruingNonperformingAssets	198000000	usd
CY2024Q3	bk	Financing Receivable Nonaccrual No Allowance Nonperforming Assets FinancingReceivableNonaccrualNoAllowanceNonperformingAssets	13000000	usd
CY2024Q3	bk	Loans Leases And Other Assets Receivable Net Reported Amount Nonperforming Assets LoansLeasesAndOtherAssetsReceivableNetReportedAmountNonperformingAssets	211000000	usd
CY2023Q4	bk	Financing Receivable90 Daysor More Past Due Still Accruing Nonperforming Assets FinancingReceivable90DaysorMorePastDueStillAccruingNonperformingAssets	219000000	usd
CY2023Q4	bk	Financing Receivable Nonaccrual No Allowance Nonperforming Assets FinancingReceivableNonaccrualNoAllowanceNonperformingAssets	18000000	usd
CY2023Q4	bk	Loans Leases And Other Assets Receivable Net Reported Amount Nonperforming Assets LoansLeasesAndOtherAssetsReceivableNetReportedAmountNonperformingAssets	237000000	usd
CY2024Q3	us-gaap	Financing Receivable Originated In Current Fiscal Year FinancingReceivableOriginatedInCurrentFiscalYear	9709000000	usd
CY2024Q3	us-gaap	Financing Receivable Originated In Fiscal Year Before Latest Fiscal Year FinancingReceivableOriginatedInFiscalYearBeforeLatestFiscalYear	2390000000	usd
CY2024Q3	us-gaap	Financing Receivable Originated Two Years Before Latest Fiscal Year FinancingReceivableOriginatedTwoYearsBeforeLatestFiscalYear	3810000000	usd
CY2024Q3	us-gaap	Financing Receivable Originated Three Years Before Latest Fiscal Year FinancingReceivableOriginatedThreeYearsBeforeLatestFiscalYear	3107000000	usd
CY2024Q3	us-gaap	Financing Receivable Originated Four Years Before Latest Fiscal Year FinancingReceivableOriginatedFourYearsBeforeLatestFiscalYear	1687000000	usd
CY2024Q3	us-gaap	Financing Receivable Originated Five Or More Years Before Latest Fiscal Year FinancingReceivableOriginatedFiveOrMoreYearsBeforeLatestFiscalYear	6549000000	usd
CY2024Q3	us-gaap	Financing Receivable Revolving FinancingReceivableRevolving	39585000000	usd
CY2024Q3	us-gaap	Financing Receivable Revolving Converted To Term Loan FinancingReceivableRevolvingConvertedToTermLoan	121000000	usd
CY2024Q3	bk	Financing Receivable Excluding Bank Overdraftsbefore Allowancefor Credit Loss FinancingReceivableExcludingBankOverdraftsbeforeAllowanceforCreditLoss	66958000000	usd
CY2024Q3	us-gaap	Financing Receivable Accrued Interest Before Allowance For Credit Loss FinancingReceivableAccruedInterestBeforeAllowanceForCreditLoss	331000000	usd
CY2023Q4	us-gaap	Financing Receivable Originated In Current Fiscal Year FinancingReceivableOriginatedInCurrentFiscalYear	12281000000	usd
CY2023Q4	us-gaap	Financing Receivable Originated In Fiscal Year Before Latest Fiscal Year FinancingReceivableOriginatedInFiscalYearBeforeLatestFiscalYear	4047000000	usd
CY2023Q4	us-gaap	Financing Receivable Originated Two Years Before Latest Fiscal Year FinancingReceivableOriginatedTwoYearsBeforeLatestFiscalYear	3085000000	usd
CY2023Q4	us-gaap	Financing Receivable Originated Three Years Before Latest Fiscal Year FinancingReceivableOriginatedThreeYearsBeforeLatestFiscalYear	1129000000	usd
CY2023Q4	us-gaap	Financing Receivable Originated Four Years Before Latest Fiscal Year FinancingReceivableOriginatedFourYearsBeforeLatestFiscalYear	1068000000	usd
CY2023Q4	us-gaap	Financing Receivable Originated Five Or More Years Before Latest Fiscal Year FinancingReceivableOriginatedFiveOrMoreYearsBeforeLatestFiscalYear	4853000000	usd
CY2023Q4	us-gaap	Financing Receivable Revolving FinancingReceivableRevolving	37240000000	usd
CY2023Q4	us-gaap	Financing Receivable Revolving Converted To Term Loan FinancingReceivableRevolvingConvertedToTermLoan	123000000	usd
CY2023Q4	bk	Financing Receivable Excluding Bank Overdraftsbefore Allowancefor Credit Loss FinancingReceivableExcludingBankOverdraftsbeforeAllowanceforCreditLoss	63826000000	usd
CY2023Q4	us-gaap	Financing Receivable Accrued Interest Before Allowance For Credit Loss FinancingReceivableAccruedInterestBeforeAllowanceForCreditLoss	300000000	usd
CY2024Q3	bk	Percentageof Exposureto Investment Grade Securities PercentageofExposuretoInvestmentGradeSecurities	0.96
CY2024Q3	bk	Percentageof Financial Institution Exposure Secured PercentageofFinancialInstitutionExposureSecured	0.65
CY2024Q3	bk	Percentof Financial Institution Exposure Expiring Within One Year PercentofFinancialInstitutionExposureExpiringWithinOneYear	0.85
CY2024Q3	us-gaap	Securities Purchased Under Agreements To Resell Allowance For Credit Loss SecuritiesPurchasedUnderAgreementsToResellAllowanceForCreditLoss	0	usd
CY2023Q4	us-gaap	Securities Purchased Under Agreements To Resell Allowance For Credit Loss SecuritiesPurchasedUnderAgreementsToResellAllowanceForCreditLoss	0	usd
CY2023Q4	us-gaap	Goodwill Gross GoodwillGross	16941000000	usd
CY2023Q4	us-gaap	Goodwill Impaired Accumulated Impairment Loss GoodwillImpairedAccumulatedImpairmentLoss	680000000	usd
CY2023Q4	us-gaap	Goodwill Goodwill	16261000000	usd
	us-gaap	Goodwill Transfers GoodwillTransfers	0	usd
	us-gaap	Goodwill Foreign Currency Translation Gain Loss GoodwillForeignCurrencyTranslationGainLoss	77000000	usd
CY2024Q3	us-gaap	Goodwill Gross GoodwillGross	17018000000	usd
CY2024Q3	us-gaap	Goodwill Impaired Accumulated Impairment Loss GoodwillImpairedAccumulatedImpairmentLoss	680000000	usd
CY2024Q3	us-gaap	Goodwill Goodwill	16338000000	usd
CY2022Q4	us-gaap	Goodwill Gross GoodwillGross	16830000000	usd
CY2022Q4	us-gaap	Goodwill Impaired Accumulated Impairment Loss GoodwillImpairedAccumulatedImpairmentLoss	680000000	usd
CY2022Q4	us-gaap	Goodwill Goodwill	16150000000	usd
	us-gaap	Goodwill Foreign Currency Translation Gain Loss GoodwillForeignCurrencyTranslationGainLoss	9000000	usd
CY2023Q3	us-gaap	Goodwill Gross GoodwillGross	16839000000	usd
CY2023Q3	us-gaap	Goodwill Impaired Accumulated Impairment Loss GoodwillImpairedAccumulatedImpairmentLoss	680000000	usd
CY2023Q3	us-gaap	Goodwill Goodwill	16159000000	usd
CY2023Q4	us-gaap	Intangible Assets Net Excluding Goodwill IntangibleAssetsNetExcludingGoodwill	2854000000	usd
	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	37000000	usd
	bk	Intangible Assets Foreign Currency Translation Gain Loss IntangibleAssetsForeignCurrencyTranslationGainLoss	7000000	usd
CY2024Q3	us-gaap	Intangible Assets Net Excluding Goodwill IntangibleAssetsNetExcludingGoodwill	2824000000	usd
CY2022Q4	us-gaap	Intangible Assets Net Excluding Goodwill IntangibleAssetsNetExcludingGoodwill	2901000000	usd
	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	43000000	usd
	bk	Intangible Assets Foreign Currency Translation Gain Loss IntangibleAssetsForeignCurrencyTranslationGainLoss	1000000	usd
CY2024Q3	us-gaap	Intangible Assets Gross Excluding Goodwill IntangibleAssetsGrossExcludingGoodwill	4182000000	usd
CY2024Q3	us-gaap	Finite Lived Intangible Assets Accumulated Amortization FiniteLivedIntangibleAssetsAccumulatedAmortization	1358000000	usd
CY2024Q3	us-gaap	Intangible Assets Net Excluding Goodwill IntangibleAssetsNetExcludingGoodwill	2824000000	usd
CY2023Q4	us-gaap	Intangible Assets Gross Excluding Goodwill IntangibleAssetsGrossExcludingGoodwill	4185000000	usd
CY2023Q4	us-gaap	Finite Lived Intangible Assets Accumulated Amortization FiniteLivedIntangibleAssetsAccumulatedAmortization	1331000000	usd
CY2023Q4	us-gaap	Intangible Assets Net Excluding Goodwill IntangibleAssetsNetExcludingGoodwill	2854000000	usd
CY2024Q3	us-gaap	Finite Lived Intangible Assets Amortization Expense Remainder Of Fiscal Year FiniteLivedIntangibleAssetsAmortizationExpenseRemainderOfFiscalYear	50000000	usd
CY2024Q3	us-gaap	Finite Lived Intangible Assets Amortization Expense Next Twelve Months FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths	43000000	usd
CY2024Q3	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Two FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo	34000000	usd
CY2024Q3	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Three FiniteLivedIntangibleAssetsAmortizationExpenseYearThree	28000000	usd
CY2024Q3	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Four FiniteLivedIntangibleAssetsAmortizationExpenseYearFour	24000000	usd
CY2024Q3	us-gaap	Life Insurance Corporate Or Bank Owned Amount LifeInsuranceCorporateOrBankOwnedAmount	5520000000	usd
CY2023Q4	us-gaap	Life Insurance Corporate Or Bank Owned Amount LifeInsuranceCorporateOrBankOwnedAmount	5480000000	usd
CY2024Q3	us-gaap	Accounts Receivable Net AccountsReceivableNet	5158000000	usd
CY2023Q4	us-gaap	Accounts Receivable Net AccountsReceivableNet	6567000000	usd
CY2024Q3	us-gaap	Capitalized Computer Software Net CapitalizedComputerSoftwareNet	2512000000	usd
CY2023Q4	us-gaap	Capitalized Computer Software Net CapitalizedComputerSoftwareNet	2430000000	usd
CY2024Q3	us-gaap	Receivables From Brokers Dealers And Clearing Organizations ReceivablesFromBrokersDealersAndClearingOrganizations	2462000000	usd
CY2023Q4	us-gaap	Receivables From Brokers Dealers And Clearing Organizations ReceivablesFromBrokersDealersAndClearingOrganizations	1514000000	usd
CY2024Q3	us-gaap	Defined Benefit Plan Assets For Plan Benefits Noncurrent DefinedBenefitPlanAssetsForPlanBenefitsNoncurrent	2128000000	usd
CY2023Q4	us-gaap	Defined Benefit Plan Assets For Plan Benefits Noncurrent DefinedBenefitPlanAssetsForPlanBenefitsNoncurrent	1818000000	usd
CY2024Q3	us-gaap	Amortization Method Qualified Affordable Housing Project Investments AmortizationMethodQualifiedAffordableHousingProjectInvestments	2080000000	usd
CY2023Q4	us-gaap	Amortization Method Qualified Affordable Housing Project Investments AmortizationMethodQualifiedAffordableHousingProjectInvestments	2186000000	usd
CY2024Q3	bk	Equity In Joint Ventures And Other Investments EquityInJointVenturesAndOtherInvestments	937000000	usd
CY2023Q4	bk	Equity In Joint Ventures And Other Investments EquityInJointVenturesAndOtherInvestments	873000000	usd
CY2024Q3	bk	Assets Of Consolidated Investment Management Funds AssetsOfConsolidatedInvestmentManagementFunds	860000000	usd
CY2023Q4	bk	Assets Of Consolidated Investment Management Funds AssetsOfConsolidatedInvestmentManagementFunds	526000000	usd
CY2024Q3	us-gaap	Prepaid Expense Current And Noncurrent PrepaidExpenseCurrentAndNoncurrent	696000000	usd
CY2023Q4	us-gaap	Prepaid Expense Current And Noncurrent PrepaidExpenseCurrentAndNoncurrent	737000000	usd
CY2024Q3	bk	Equity Investments Other EquityInvestmentsOther	680000000	usd
CY2023Q4	bk	Equity Investments Other EquityInvestmentsOther	741000000	usd
CY2024Q3	us-gaap	Federal Reserve Bank Stock FederalReserveBankStock	476000000	usd
CY2023Q4	us-gaap	Federal Reserve Bank Stock FederalReserveBankStock	480000000	usd
CY2024Q3	bk	Cash Collateral Receivable On Derivative Transactions CashCollateralReceivableOnDerivativeTransactions	405000000	usd
CY2023Q4	bk	Cash Collateral Receivable On Derivative Transactions CashCollateralReceivableOnDerivativeTransactions	621000000	usd
CY2024Q3	us-gaap	Income Tax Receivable IncomeTaxReceivable	342000000	usd
CY2023Q4	us-gaap	Income Tax Receivable IncomeTaxReceivable	270000000	usd
CY2024Q3	us-gaap	Derivative Instruments In Hedges Assets At Fair Value DerivativeInstrumentsInHedgesAssetsAtFairValue	211000000	usd
CY2023Q4	us-gaap	Derivative Instruments In Hedges Assets At Fair Value DerivativeInstrumentsInHedgesAssetsAtFairValue	236000000	usd
CY2024Q3	bk	Seed Capital SeedCapital	209000000	usd
CY2023Q4	bk	Seed Capital SeedCapital	232000000	usd
CY2024Q3	us-gaap	Other Assets Miscellaneous OtherAssetsMiscellaneous	1451000000	usd
CY2023Q4	us-gaap	Other Assets Miscellaneous OtherAssetsMiscellaneous	1198000000	usd
CY2024Q3	us-gaap	Other Assets OtherAssets	26127000000	usd
CY2023Q4	us-gaap	Other Assets OtherAssets	25909000000	usd
CY2024Q3	us-gaap	Federal Home Loan Bank Stock FederalHomeLoanBankStock	57000000	usd
CY2023Q4	us-gaap	Federal Home Loan Bank Stock FederalHomeLoanBankStock	7000000	usd
CY2024Q3	us-gaap	Equity Securities Without Readily Determinable Fair Value Amount EquitySecuritiesWithoutReadilyDeterminableFairValueAmount	410000000	usd
CY2023Q4	us-gaap	Equity Securities Without Readily Determinable Fair Value Amount EquitySecuritiesWithoutReadilyDeterminableFairValueAmount	479000000	usd
CY2024Q3	us-gaap	Equity Securities Without Readily Determinable Fair Value Upward Price Adjustment Annual Amount EquitySecuritiesWithoutReadilyDeterminableFairValueUpwardPriceAdjustmentAnnualAmount	0	usd
CY2024Q2	us-gaap	Equity Securities Without Readily Determinable Fair Value Upward Price Adjustment Annual Amount EquitySecuritiesWithoutReadilyDeterminableFairValueUpwardPriceAdjustmentAnnualAmount	1000000	usd
CY2023Q3	us-gaap	Equity Securities Without Readily Determinable Fair Value Upward Price Adjustment Annual Amount EquitySecuritiesWithoutReadilyDeterminableFairValueUpwardPriceAdjustmentAnnualAmount	0	usd
	us-gaap	Equity Securities Without Readily Determinable Fair Value Upward Price Adjustment Annual Amount EquitySecuritiesWithoutReadilyDeterminableFairValueUpwardPriceAdjustmentAnnualAmount	1000000	usd
	us-gaap	Equity Securities Without Readily Determinable Fair Value Upward Price Adjustment Annual Amount EquitySecuritiesWithoutReadilyDeterminableFairValueUpwardPriceAdjustmentAnnualAmount	5000000	usd
CY2024Q3	us-gaap	Equity Securities Without Readily Determinable Fair Value Upward Price Adjustment Cumulative Amount EquitySecuritiesWithoutReadilyDeterminableFairValueUpwardPriceAdjustmentCumulativeAmount	336000000	usd
CY2024Q3	us-gaap	Equity Securities Without Readily Determinable Fair Value Downward Price Adjustment Annual Amount EquitySecuritiesWithoutReadilyDeterminableFairValueDownwardPriceAdjustmentAnnualAmount	0	usd
CY2024Q2	us-gaap	Equity Securities Without Readily Determinable Fair Value Downward Price Adjustment Annual Amount EquitySecuritiesWithoutReadilyDeterminableFairValueDownwardPriceAdjustmentAnnualAmount	0	usd
CY2023Q3	us-gaap	Equity Securities Without Readily Determinable Fair Value Downward Price Adjustment Annual Amount EquitySecuritiesWithoutReadilyDeterminableFairValueDownwardPriceAdjustmentAnnualAmount	21000000	usd
	us-gaap	Equity Securities Without Readily Determinable Fair Value Downward Price Adjustment Annual Amount EquitySecuritiesWithoutReadilyDeterminableFairValueDownwardPriceAdjustmentAnnualAmount	0	usd
	us-gaap	Equity Securities Without Readily Determinable Fair Value Downward Price Adjustment Annual Amount EquitySecuritiesWithoutReadilyDeterminableFairValueDownwardPriceAdjustmentAnnualAmount	40000000	usd
CY2024Q3	us-gaap	Equity Securities Without Readily Determinable Fair Value Downward Price Adjustment Cumulative Amount EquitySecuritiesWithoutReadilyDeterminableFairValueDownwardPriceAdjustmentCumulativeAmount	53000000	usd
CY2024Q3	bk	Equity Securitieswithout Readily Determinable Fair Value Net Adjustment Annual Amount EquitySecuritieswithoutReadilyDeterminableFairValueNetAdjustmentAnnualAmount	0	usd
CY2024Q2	bk	Equity Securitieswithout Readily Determinable Fair Value Net Adjustment Annual Amount EquitySecuritieswithoutReadilyDeterminableFairValueNetAdjustmentAnnualAmount	1000000	usd
CY2023Q3	bk	Equity Securitieswithout Readily Determinable Fair Value Net Adjustment Annual Amount EquitySecuritieswithoutReadilyDeterminableFairValueNetAdjustmentAnnualAmount	-21000000	usd
	bk	Equity Securitieswithout Readily Determinable Fair Value Net Adjustment Annual Amount EquitySecuritieswithoutReadilyDeterminableFairValueNetAdjustmentAnnualAmount	1000000	usd
	bk	Equity Securitieswithout Readily Determinable Fair Value Net Adjustment Annual Amount EquitySecuritieswithoutReadilyDeterminableFairValueNetAdjustmentAnnualAmount	-35000000	usd
CY2024Q3	bk	Equity Securitieswithout Readily Determinable Fair Value Net Adjustment Cumulative Amount EquitySecuritieswithoutReadilyDeterminableFairValueNetAdjustmentCumulativeAmount	283000000	usd
CY2024Q3	us-gaap	Amortization Method Qualified Affordable Housing Project Investments AmortizationMethodQualifiedAffordableHousingProjectInvestments	2100000000	usd
CY2023Q4	us-gaap	Amortization Method Qualified Affordable Housing Project Investments AmortizationMethodQualifiedAffordableHousingProjectInvestments	2200000000	usd
CY2024Q3	us-gaap	Qualified Affordable Housing Project Investments Commitment QualifiedAffordableHousingProjectInvestmentsCommitment	811000000	usd
CY2023Q4	us-gaap	Qualified Affordable Housing Project Investments Commitment QualifiedAffordableHousingProjectInvestmentsCommitment	780000000	usd
CY2024Q3	bk	Investment Program Proportional Amortization Method Elected Commitment Remainder Of Year InvestmentProgramProportionalAmortizationMethodElectedCommitmentRemainderOfYear	198000000	usd
CY2024Q3	bk	Investment Program Proportional Amortization Method Elected Commitment In Year One InvestmentProgramProportionalAmortizationMethodElectedCommitmentInYearOne	258000000	usd
CY2024Q3	bk	Investment Program Proportional Amortization Method Elected Commitment In Year Two InvestmentProgramProportionalAmortizationMethodElectedCommitmentInYearTwo	113000000	usd
CY2024Q3	bk	Investment Program Proportional Amortization Method Elected Commitment In Year Three InvestmentProgramProportionalAmortizationMethodElectedCommitmentInYearThree	61000000	usd
CY2024Q3	bk	Investment Program Proportional Amortization Method Elected Commitment In Year Four InvestmentProgramProportionalAmortizationMethodElectedCommitmentInYearFour	66000000	usd
CY2024Q3	bk	Investment Program Proportional Amortization Method Elected Commitment After Year Four InvestmentProgramProportionalAmortizationMethodElectedCommitmentAfterYearFour	115000000	usd
CY2024Q3	us-gaap	Affordable Housing Tax Credits And Other Tax Benefits Amount AffordableHousingTaxCreditsAndOtherTaxBenefitsAmount	114000000	usd
CY2024Q2	us-gaap	Affordable Housing Tax Credits And Other Tax Benefits Amount AffordableHousingTaxCreditsAndOtherTaxBenefitsAmount	115000000	usd
CY2023Q3	us-gaap	Affordable Housing Tax Credits And Other Tax Benefits Amount AffordableHousingTaxCreditsAndOtherTaxBenefitsAmount	92000000	usd
	us-gaap	Affordable Housing Tax Credits And Other Tax Benefits Amount AffordableHousingTaxCreditsAndOtherTaxBenefitsAmount	342000000	usd
	us-gaap	Affordable Housing Tax Credits And Other Tax Benefits Amount AffordableHousingTaxCreditsAndOtherTaxBenefitsAmount	276000000	usd
CY2024Q3	us-gaap	Amortization Method Qualified Affordable Housing Project Investments Amortization AmortizationMethodQualifiedAffordableHousingProjectInvestmentsAmortization	92000000	usd
CY2024Q2	us-gaap	Amortization Method Qualified Affordable Housing Project Investments Amortization AmortizationMethodQualifiedAffordableHousingProjectInvestmentsAmortization	92000000	usd
CY2023Q3	us-gaap	Amortization Method Qualified Affordable Housing Project Investments Amortization AmortizationMethodQualifiedAffordableHousingProjectInvestmentsAmortization	73000000	usd
	us-gaap	Amortization Method Qualified Affordable Housing Project Investments Amortization AmortizationMethodQualifiedAffordableHousingProjectInvestmentsAmortization	276000000	usd
	us-gaap	Amortization Method Qualified Affordable Housing Project Investments Amortization AmortizationMethodQualifiedAffordableHousingProjectInvestmentsAmortization	219000000	usd
CY2023Q4	us-gaap	Contract With Customer Asset Net ContractWithCustomerAssetNet	2600000000	usd
CY2024Q3	us-gaap	Contract With Customer Asset Net ContractWithCustomerAssetNet	2600000000	usd
CY2024Q3	us-gaap	Contract With Customer Asset Net Current ContractWithCustomerAssetNetCurrent	45000000	usd
CY2023Q4	us-gaap	Contract With Customer Asset Net Current ContractWithCustomerAssetNetCurrent	27000000	usd
CY2024Q3	us-gaap	Contract With Customer Liability ContractWithCustomerLiability	216000000	usd
CY2023Q4	us-gaap	Contract With Customer Liability ContractWithCustomerLiability	172000000	usd
	us-gaap	Contract With Customer Liability Revenue Recognized ContractWithCustomerLiabilityRevenueRecognized	106000000	usd
CY2024Q3	us-gaap	Contract With Customer Liability Revenue Recognized ContractWithCustomerLiabilityRevenueRecognized	79000000	usd
CY2024Q3	bk	Interest Income Deposits With Federal Reserve And Other Central Banks InterestIncomeDepositsWithFederalReserveAndOtherCentralBanks	1188000000	usd
CY2024Q2	bk	Interest Income Deposits With Federal Reserve And Other Central Banks InterestIncomeDepositsWithFederalReserveAndOtherCentralBanks	1201000000	usd
CY2023Q3	bk	Interest Income Deposits With Federal Reserve And Other Central Banks InterestIncomeDepositsWithFederalReserveAndOtherCentralBanks	1153000000	usd
	bk	Interest Income Deposits With Federal Reserve And Other Central Banks InterestIncomeDepositsWithFederalReserveAndOtherCentralBanks	3608000000	usd
	bk	Interest Income Deposits With Federal Reserve And Other Central Banks InterestIncomeDepositsWithFederalReserveAndOtherCentralBanks	3247000000	usd
CY2024Q3	us-gaap	Interest Income Deposits With Financial Institutions InterestIncomeDepositsWithFinancialInstitutions	109000000	usd
CY2024Q2	us-gaap	Interest Income Deposits With Financial Institutions InterestIncomeDepositsWithFinancialInstitutions	110000000	usd
CY2023Q3	us-gaap	Interest Income Deposits With Financial Institutions InterestIncomeDepositsWithFinancialInstitutions	125000000	usd
	us-gaap	Interest Income Deposits With Financial Institutions InterestIncomeDepositsWithFinancialInstitutions	340000000	usd
	us-gaap	Interest Income Deposits With Financial Institutions InterestIncomeDepositsWithFinancialInstitutions	393000000	usd
CY2024Q3	us-gaap	Interest Income Federal Funds Sold And Securities Purchased Under Agreements To Resell InterestIncomeFederalFundsSoldAndSecuritiesPurchasedUnderAgreementsToResell	2874000000	usd
CY2024Q2	us-gaap	Interest Income Federal Funds Sold And Securities Purchased Under Agreements To Resell InterestIncomeFederalFundsSoldAndSecuritiesPurchasedUnderAgreementsToResell	2631000000	usd
CY2023Q3	us-gaap	Interest Income Federal Funds Sold And Securities Purchased Under Agreements To Resell InterestIncomeFederalFundsSoldAndSecuritiesPurchasedUnderAgreementsToResell	2066000000	usd
	us-gaap	Interest Income Federal Funds Sold And Securities Purchased Under Agreements To Resell InterestIncomeFederalFundsSoldAndSecuritiesPurchasedUnderAgreementsToResell	7938000000	usd
	us-gaap	Interest Income Federal Funds Sold And Securities Purchased Under Agreements To Resell InterestIncomeFederalFundsSoldAndSecuritiesPurchasedUnderAgreementsToResell	4833000000	usd
CY2024Q3	us-gaap	Interest And Fee Income Loans And Leases InterestAndFeeIncomeLoansAndLeases	1142000000	usd
CY2024Q2	us-gaap	Interest And Fee Income Loans And Leases InterestAndFeeIncomeLoansAndLeases	1119000000	usd
CY2023Q3	us-gaap	Interest And Fee Income Loans And Leases InterestAndFeeIncomeLoansAndLeases	1029000000	usd
	us-gaap	Interest And Fee Income Loans And Leases InterestAndFeeIncomeLoansAndLeases	3322000000	usd
	us-gaap	Interest And Fee Income Loans And Leases InterestAndFeeIncomeLoansAndLeases	2852000000	usd
CY2024Q3	us-gaap	Interest Income Securities Taxable InterestIncomeSecuritiesTaxable	1264000000	usd
CY2024Q2	us-gaap	Interest Income Securities Taxable InterestIncomeSecuritiesTaxable	1256000000	usd
CY2023Q3	us-gaap	Interest Income Securities Taxable InterestIncomeSecuritiesTaxable	1069000000	usd
	us-gaap	Interest Income Securities Taxable InterestIncomeSecuritiesTaxable	3713000000	usd
	us-gaap	Interest Income Securities Taxable InterestIncomeSecuritiesTaxable	3133000000	usd
CY2024Q3	us-gaap	Interest Income Securities Tax Exempt InterestIncomeSecuritiesTaxExempt	0	usd
CY2024Q2	us-gaap	Interest Income Securities Tax Exempt InterestIncomeSecuritiesTaxExempt	0	usd
CY2023Q3	us-gaap	Interest Income Securities Tax Exempt InterestIncomeSecuritiesTaxExempt	1000000	usd
	us-gaap	Interest Income Securities Tax Exempt InterestIncomeSecuritiesTaxExempt	0	usd
	us-gaap	Interest Income Securities Tax Exempt InterestIncomeSecuritiesTaxExempt	1000000	usd
CY2024Q3	us-gaap	Interest And Dividend Income Securities InterestAndDividendIncomeSecurities	1264000000	usd
CY2024Q2	us-gaap	Interest And Dividend Income Securities InterestAndDividendIncomeSecurities	1256000000	usd
CY2023Q3	us-gaap	Interest And Dividend Income Securities InterestAndDividendIncomeSecurities	1070000000	usd
	us-gaap	Interest And Dividend Income Securities InterestAndDividendIncomeSecurities	3713000000	usd
	us-gaap	Interest And Dividend Income Securities InterestAndDividendIncomeSecurities	3134000000	usd
CY2024Q3	us-gaap	Interest Income Debt Securities Trading Operating InterestIncomeDebtSecuritiesTradingOperating	75000000	usd
CY2024Q2	us-gaap	Interest Income Debt Securities Trading Operating InterestIncomeDebtSecuritiesTradingOperating	75000000	usd
CY2023Q3	us-gaap	Interest Income Debt Securities Trading Operating InterestIncomeDebtSecuritiesTradingOperating	76000000	usd
	us-gaap	Interest Income Debt Securities Trading Operating InterestIncomeDebtSecuritiesTradingOperating	219000000	usd
	us-gaap	Interest Income Debt Securities Trading Operating InterestIncomeDebtSecuritiesTradingOperating	226000000	usd
CY2024Q3	us-gaap	Interest And Dividend Income Operating InterestAndDividendIncomeOperating	6652000000	usd
CY2024Q2	us-gaap	Interest And Dividend Income Operating InterestAndDividendIncomeOperating	6392000000	usd
CY2023Q3	us-gaap	Interest And Dividend Income Operating InterestAndDividendIncomeOperating	5519000000	usd
	us-gaap	Interest And Dividend Income Operating InterestAndDividendIncomeOperating	19140000000	usd
	us-gaap	Interest And Dividend Income Operating InterestAndDividendIncomeOperating	14685000000	usd
CY2024Q3	us-gaap	Interest Expense Deposits InterestExpenseDeposits	2271000000	usd
CY2024Q2	us-gaap	Interest Expense Deposits InterestExpenseDeposits	2255000000	usd
CY2023Q3	us-gaap	Interest Expense Deposits InterestExpenseDeposits	1911000000	usd
	us-gaap	Interest Expense Deposits InterestExpenseDeposits	6713000000	usd
	us-gaap	Interest Expense Deposits InterestExpenseDeposits	5016000000	usd
CY2024Q3	us-gaap	Interest Expense Federal Funds Purchased And Securities Sold Under Agreements To Repurchase InterestExpenseFederalFundsPurchasedAndSecuritiesSoldUnderAgreementsToRepurchase	2620000000	usd
CY2024Q2	us-gaap	Interest Expense Federal Funds Purchased And Securities Sold Under Agreements To Repurchase InterestExpenseFederalFundsPurchasedAndSecuritiesSoldUnderAgreementsToRepurchase	2433000000	usd
CY2023Q3	us-gaap	Interest Expense Federal Funds Purchased And Securities Sold Under Agreements To Repurchase InterestExpenseFederalFundsPurchasedAndSecuritiesSoldUnderAgreementsToRepurchase	1956000000	usd
	us-gaap	Interest Expense Federal Funds Purchased And Securities Sold Under Agreements To Repurchase InterestExpenseFederalFundsPurchasedAndSecuritiesSoldUnderAgreementsToRepurchase	7296000000	usd
	us-gaap	Interest Expense Federal Funds Purchased And Securities Sold Under Agreements To Repurchase InterestExpenseFederalFundsPurchasedAndSecuritiesSoldUnderAgreementsToRepurchase	4577000000	usd
CY2024Q3	us-gaap	Interest Expense Trading Liabilities InterestExpenseTradingLiabilities	22000000	usd
CY2024Q2	us-gaap	Interest Expense Trading Liabilities InterestExpenseTradingLiabilities	23000000	usd
CY2023Q3	us-gaap	Interest Expense Trading Liabilities InterestExpenseTradingLiabilities	48000000	usd
	us-gaap	Interest Expense Trading Liabilities InterestExpenseTradingLiabilities	66000000	usd
	us-gaap	Interest Expense Trading Liabilities InterestExpenseTradingLiabilities	121000000	usd
CY2024Q3	us-gaap	Interest Expense Other Short Term Borrowings InterestExpenseOtherShortTermBorrowings	3000000	usd
CY2024Q2	us-gaap	Interest Expense Other Short Term Borrowings InterestExpenseOtherShortTermBorrowings	8000000	usd
CY2023Q3	us-gaap	Interest Expense Other Short Term Borrowings InterestExpenseOtherShortTermBorrowings	6000000	usd
	us-gaap	Interest Expense Other Short Term Borrowings InterestExpenseOtherShortTermBorrowings	15000000	usd
	us-gaap	Interest Expense Other Short Term Borrowings InterestExpenseOtherShortTermBorrowings	41000000	usd
CY2024Q3	us-gaap	Interest Expense Commercial Paper InterestExpenseCommercialPaper	21000000	usd
CY2024Q2	us-gaap	Interest Expense Commercial Paper InterestExpenseCommercialPaper	13000000	usd
CY2023Q3	us-gaap	Interest Expense Commercial Paper InterestExpenseCommercialPaper	0	usd
	us-gaap	Interest Expense Commercial Paper InterestExpenseCommercialPaper	34000000	usd
	us-gaap	Interest Expense Commercial Paper InterestExpenseCommercialPaper	0	usd
CY2024Q3	bk	Interest Expense Customer Payables InterestExpenseCustomerPayables	170000000	usd
CY2024Q2	bk	Interest Expense Customer Payables InterestExpenseCustomerPayables	161000000	usd
CY2023Q3	bk	Interest Expense Customer Payables InterestExpenseCustomerPayables	147000000	usd
	bk	Interest Expense Customer Payables InterestExpenseCustomerPayables	477000000	usd
	bk	Interest Expense Customer Payables InterestExpenseCustomerPayables	418000000	usd
CY2024Q3	us-gaap	Interest Expense Long Term Debt InterestExpenseLongTermDebt	497000000	usd
CY2024Q2	us-gaap	Interest Expense Long Term Debt InterestExpenseLongTermDebt	469000000	usd
CY2023Q3	us-gaap	Interest Expense Long Term Debt InterestExpenseLongTermDebt	435000000	usd
	us-gaap	Interest Expense Long Term Debt InterestExpenseLongTermDebt	1421000000	usd
	us-gaap	Interest Expense Long Term Debt InterestExpenseLongTermDebt	1268000000	usd
CY2024Q3	us-gaap	Interest Expense Operating InterestExpenseOperating	5604000000	usd
CY2024Q2	us-gaap	Interest Expense Operating InterestExpenseOperating	5362000000	usd
CY2023Q3	us-gaap	Interest Expense Operating InterestExpenseOperating	4503000000	usd
	us-gaap	Interest Expense Operating InterestExpenseOperating	16022000000	usd
	us-gaap	Interest Expense Operating InterestExpenseOperating	11441000000	usd
CY2024Q3	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	1048000000	usd
CY2024Q2	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	1030000000	usd
CY2023Q3	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	1016000000	usd
	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	3118000000	usd
	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	3244000000	usd
CY2024Q3	us-gaap	Provision For Loan Lease And Other Losses ProvisionForLoanLeaseAndOtherLosses	23000000	usd
CY2024Q2	us-gaap	Provision For Loan Lease And Other Losses ProvisionForLoanLeaseAndOtherLosses	0	usd
CY2023Q3	us-gaap	Provision For Loan Lease And Other Losses ProvisionForLoanLeaseAndOtherLosses	3000000	usd
	us-gaap	Provision For Loan Lease And Other Losses ProvisionForLoanLeaseAndOtherLosses	50000000	usd
	us-gaap	Provision For Loan Lease And Other Losses ProvisionForLoanLeaseAndOtherLosses	35000000	usd
CY2024Q3	us-gaap	Interest Income Expense After Provision For Loan Loss InterestIncomeExpenseAfterProvisionForLoanLoss	1025000000	usd
CY2024Q2	us-gaap	Interest Income Expense After Provision For Loan Loss InterestIncomeExpenseAfterProvisionForLoanLoss	1030000000	usd
CY2023Q3	us-gaap	Interest Income Expense After Provision For Loan Loss InterestIncomeExpenseAfterProvisionForLoanLoss	1013000000	usd
	us-gaap	Interest Income Expense After Provision For Loan Loss InterestIncomeExpenseAfterProvisionForLoanLoss	3068000000	usd
	us-gaap	Interest Income Expense After Provision For Loan Loss InterestIncomeExpenseAfterProvisionForLoanLoss	3209000000	usd
CY2024Q3	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	336000000	usd
CY2024Q3	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.220
CY2023Q3	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	285000000	usd
CY2023Q3	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.215
CY2024Q2	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	357000000	usd
CY2024Q2	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.234
CY2023Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	109000000	usd
CY2024Q3	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	109000000	usd
CY2024Q3	us-gaap	Unrecognized Tax Benefits That Would Impact Effective Tax Rate UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate	109000000	usd
CY2024Q3	us-gaap	Unrecognized Tax Benefits Interest On Income Taxes Accrued UnrecognizedTaxBenefitsInterestOnIncomeTaxesAccrued	39000000	usd
	us-gaap	Unrecognized Tax Benefits Interest On Income Taxes Expense UnrecognizedTaxBenefitsInterestOnIncomeTaxesExpense	0	usd
	us-gaap	Unrecognized Tax Benefits Interest On Income Taxes Expense UnrecognizedTaxBenefitsInterestOnIncomeTaxesExpense	-3000000	usd
CY2024Q3	us-gaap	Decrease In Unrecognized Tax Benefits Is Reasonably Possible DecreaseInUnrecognizedTaxBenefitsIsReasonablyPossible	19000000	usd
CY2024Q3	bk	Voting Model Entity Classificationof Carrying Amount Assets VotingModelEntityClassificationofCarryingAmountAssets	53000000	usd
CY2023Q4	bk	Voting Model Entity Classificationof Carrying Amount Assets VotingModelEntityClassificationofCarryingAmountAssets	91000000	usd
CY2024Q3	bk	Voting Model Entity Classificationof Carrying Amount Liabilities VotingModelEntityClassificationofCarryingAmountLiabilities	1000000	usd
CY2023Q4	bk	Voting Model Entity Classificationof Carrying Amount Liabilities VotingModelEntityClassificationofCarryingAmountLiabilities	1000000	usd
CY2024Q3	bk	Noncontrolling Interestin Voting Model Entity NoncontrollingInterestinVotingModelEntity	3000000	usd
CY2023Q4	bk	Noncontrolling Interestin Voting Model Entity NoncontrollingInterestinVotingModelEntity	12000000	usd
CY2024Q3	us-gaap	Preferred Stock Shares Authorized PreferredStockSharesAuthorized	100000000	shares
CY2024Q3	us-gaap	Preferred Stock Par Or Stated Value Per Share PreferredStockParOrStatedValuePerShare	0.01
CY2024Q3	us-gaap	Preferred Stock Shares Outstanding PreferredStockSharesOutstanding	43826	shares
CY2023Q4	us-gaap	Preferred Stock Shares Outstanding PreferredStockSharesOutstanding	43826	shares
CY2024Q3	us-gaap	Preferred Stock Value PreferredStockValue	4343000000	usd
CY2023Q4	us-gaap	Preferred Stock Value PreferredStockValue	4343000000	usd
CY2024Q3	us-gaap	Dividends Preferred Stock DividendsPreferredStock	72000000	usd
CY2024Q2	us-gaap	Dividends Preferred Stock DividendsPreferredStock	25000000	usd
CY2023Q3	us-gaap	Dividends Preferred Stock DividendsPreferredStock	82000000	usd
	us-gaap	Dividends Preferred Stock DividendsPreferredStock	169000000	usd
	us-gaap	Dividends Preferred Stock DividendsPreferredStock	189000000	usd
CY2024Q3	bk	Preferred Stock Ownership Percentage Subsidiary PreferredStockOwnershipPercentageSubsidiary	1
CY2024Q3	us-gaap	Other Comprehensive Income Loss Before Tax OtherComprehensiveIncomeLossBeforeTax	1189000000	usd
CY2024Q3	us-gaap	Other Comprehensive Income Loss Tax OtherComprehensiveIncomeLossTax	151000000	usd
CY2024Q3	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	1038000000	usd
CY2024Q2	us-gaap	Other Comprehensive Income Loss Before Tax OtherComprehensiveIncomeLossBeforeTax	0	usd
CY2024Q2	us-gaap	Other Comprehensive Income Loss Tax OtherComprehensiveIncomeLossTax	24000000	usd
CY2024Q2	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-24000000	usd
CY2023Q3	us-gaap	Other Comprehensive Income Loss Before Tax OtherComprehensiveIncomeLossBeforeTax	-131000000	usd
CY2023Q3	us-gaap	Other Comprehensive Income Loss Tax OtherComprehensiveIncomeLossTax	72000000	usd
CY2023Q3	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-203000000	usd
	us-gaap	Other Comprehensive Income Loss Before Tax OtherComprehensiveIncomeLossBeforeTax	1288000000	usd
	us-gaap	Other Comprehensive Income Loss Tax OtherComprehensiveIncomeLossTax	257000000	usd
	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	1031000000	usd
	us-gaap	Other Comprehensive Income Loss Before Tax OtherComprehensiveIncomeLossBeforeTax	228000000	usd
	us-gaap	Other Comprehensive Income Loss Tax OtherComprehensiveIncomeLossTax	67000000	usd
	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	161000000	usd
CY2024Q3	us-gaap	Increase Decrease In Fair Value Adjustments On Assets And Liabilities Carried At Fair Value Under Fair Value Option IncreaseDecreaseInFairValueAdjustmentsOnAssetsAndLiabilitiesCarriedAtFairValueUnderFairValueOption	-1000000	usd
CY2024Q3	us-gaap	Fair Value Liabilities Measured On Recurring Basis Subordinated Debt Obligations FairValueLiabilitiesMeasuredOnRecurringBasisSubordinatedDebtObligations	17000000	usd
CY2023Q4	us-gaap	Fair Value Liabilities Measured On Recurring Basis Subordinated Debt Obligations FairValueLiabilitiesMeasuredOnRecurringBasisSubordinatedDebtObligations	4000000	usd
CY2024Q3	us-gaap	Derivative Loss On Derivative DerivativeLossOnDerivative	0	usd
	us-gaap	Notional Amount Of Nonderivative Instruments NotionalAmountOfNonderivativeInstruments	0	usd
CY2024Q3	us-gaap	Derivative Gain Loss On Derivative Net DerivativeGainLossOnDerivativeNet	-1000000	usd
CY2023Q3	us-gaap	Derivative Gain Loss On Derivative Net DerivativeGainLossOnDerivativeNet	1000000	usd
	us-gaap	Derivative Gain Loss On Derivative Net DerivativeGainLossOnDerivativeNet	-4000000	usd
CY2024Q3	us-gaap	Derivative Asset Fair Value Gross Asset Including Not Subject To Master Netting Arrangement DerivativeAssetFairValueGrossAssetIncludingNotSubjectToMasterNettingArrangement	7725000000	usd
CY2023Q4	us-gaap	Derivative Asset Fair Value Gross Asset Including Not Subject To Master Netting Arrangement DerivativeAssetFairValueGrossAssetIncludingNotSubjectToMasterNettingArrangement	10531000000	usd
CY2023Q4	us-gaap	Derivative Liability Fair Value Gross Liability Including Not Subject To Master Netting Arrangement DerivativeLiabilityFairValueGrossLiabilityIncludingNotSubjectToMasterNettingArrangement	10946000000	usd
CY2023Q4	us-gaap	Derivative Asset Fair Value Gross Liability DerivativeAssetFairValueGrossLiability	8256000000	usd
CY2023Q4	us-gaap	Derivative Liability Fair Value Gross Asset DerivativeLiabilityFairValueGrossAsset	7090000000	usd
CY2023Q4	us-gaap	Derivative Assets DerivativeAssets	2275000000	usd
CY2023Q4	us-gaap	Derivative Liabilities DerivativeLiabilities	3856000000	usd
CY2024Q3	us-gaap	Derivative Asset Collateral Obligation To Return Cash Offset DerivativeAssetCollateralObligationToReturnCashOffset	1602000000	usd
CY2024Q3	us-gaap	Derivative Liability Collateral Right To Reclaim Cash Offset DerivativeLiabilityCollateralRightToReclaimCashOffset	658000000	usd
CY2023Q4	us-gaap	Derivative Asset Collateral Obligation To Return Cash Offset DerivativeAssetCollateralObligationToReturnCashOffset	2353000000	usd
CY2023Q4	us-gaap	Derivative Liability Collateral Right To Reclaim Cash Offset DerivativeLiabilityCollateralRightToReclaimCashOffset	1187000000	usd
CY2024Q3	bk	Foreign Exchange Revenue ForeignExchangeRevenue	175000000	usd
	bk	Foreign Exchange Revenue ForeignExchangeRevenue	511000000	usd
	bk	Foreign Exchange Revenue ForeignExchangeRevenue	488000000	usd
	us-gaap	Trading Gains Losses TradingGainsLosses	184000000	usd
	bk	Value At Risk Confidence Level ValueAtRiskConfidenceLevel	0.99
CY2023Q4	us-gaap	Derivative Net Liability Position Aggregate Fair Value DerivativeNetLiabilityPositionAggregateFairValue	1003000000	usd
CY2023Q4	us-gaap	Collateral Already Posted Aggregate Fair Value CollateralAlreadyPostedAggregateFairValue	1001000000	usd
CY2023Q4	us-gaap	Additional Collateral Aggregate Fair Value AdditionalCollateralAggregateFairValue	235000000	usd
CY2024Q3	us-gaap	Derivative Fair Value Of Derivative Asset DerivativeFairValueOfDerivativeAsset	7079000000	usd
CY2024Q3	us-gaap	Derivative Asset Fair Value Gross Liability DerivativeAssetFairValueGrossLiability	6210000000	usd
CY2024Q3	us-gaap	Derivative Fair Value Of Derivative Asset Amount Not Offset Against Collateral DerivativeFairValueOfDerivativeAssetAmountNotOffsetAgainstCollateral	869000000	usd
CY2024Q3	us-gaap	Derivative Asset Not Offset Policy Election Deduction DerivativeAssetNotOffsetPolicyElectionDeduction	110000000	usd
CY2024Q3	us-gaap	Derivative Collateral Obligation To Return Cash DerivativeCollateralObligationToReturnCash	0	usd
CY2024Q3	us-gaap	Derivative Asset Fair Value After Offset And Deduction Subject To Master Netting Arrangement DerivativeAssetFairValueAfterOffsetAndDeductionSubjectToMasterNettingArrangement	759000000	usd
CY2024Q3	us-gaap	Derivative Asset Not Subject To Master Netting Arrangement DerivativeAssetNotSubjectToMasterNettingArrangement	646000000	usd
CY2024Q3	us-gaap	Derivative Asset Not Subject To Master Netting Arrangement DerivativeAssetNotSubjectToMasterNettingArrangement	646000000	usd
CY2024Q3	us-gaap	Derivative Asset Fair Value Gross Asset Including Not Subject To Master Netting Arrangement DerivativeAssetFairValueGrossAssetIncludingNotSubjectToMasterNettingArrangement	7725000000	usd
CY2024Q3	us-gaap	Derivative Asset Fair Value Gross Liability DerivativeAssetFairValueGrossLiability	6210000000	usd
CY2024Q3	us-gaap	Derivative Assets DerivativeAssets	1515000000	usd
CY2024Q3	us-gaap	Derivative Asset Not Offset Policy Election Deduction DerivativeAssetNotOffsetPolicyElectionDeduction	110000000	usd
CY2024Q3	us-gaap	Derivative Collateral Obligation To Return Cash DerivativeCollateralObligationToReturnCash	0	usd
CY2024Q3	us-gaap	Derivative Fair Value Of Derivative Asset Amount Offset Against Collateral DerivativeFairValueOfDerivativeAssetAmountOffsetAgainstCollateral	1405000000	usd
CY2024Q3	us-gaap	Securities Purchased Under Agreements To Resell Gross SecuritiesPurchasedUnderAgreementsToResellGross	262253000000	usd
CY2024Q3	us-gaap	Securities Purchased Under Agreements To Resell Liability SecuritiesPurchasedUnderAgreementsToResellLiability	242526000000	usd
CY2024Q3	us-gaap	Securities Purchased Under Agreements To Resell SecuritiesPurchasedUnderAgreementsToResell	19727000000	usd
CY2024Q3	us-gaap	Securities Purchased Under Agreements To Resell Not Offset Policy Election Deduction SecuritiesPurchasedUnderAgreementsToResellNotOffsetPolicyElectionDeduction	19271000000	usd
CY2024Q3	us-gaap	Securities Purchased Under Agreements To Resell Collateral Obligation To Return Cash SecuritiesPurchasedUnderAgreementsToResellCollateralObligationToReturnCash	2000000	usd
CY2024Q3	us-gaap	Securities Purchased Under Agreements To Resell Offset Against Collateral Net Of Not Subject To Master Netting Arrangement Policy Election SecuritiesPurchasedUnderAgreementsToResellOffsetAgainstCollateralNetOfNotSubjectToMasterNettingArrangementPolicyElection	454000000	usd
CY2024Q3	bk	Security Borrowed Subject To Master Netting Arrangement Before Offset SecurityBorrowedSubjectToMasterNettingArrangementBeforeOffset	16437000000	usd
CY2024Q3	us-gaap	Securities Borrowed SecuritiesBorrowed	16437000000	usd
CY2024Q3	us-gaap	Securities Borrowed Not Offset Policy Election Deduction SecuritiesBorrowedNotOffsetPolicyElectionDeduction	15588000000	usd
CY2024Q3	bk	Securities Borrowed Offset Against Collateral Subject To Master Netting Arrangement Policy Election SecuritiesBorrowedOffsetAgainstCollateralSubjectToMasterNettingArrangementPolicyElection	849000000	usd
CY2024Q3	us-gaap	Derivative Asset Securities Purchased Under Agreements To Resell Securities Borrowed Gross DerivativeAssetSecuritiesPurchasedUnderAgreementsToResellSecuritiesBorrowedGross	286415000000	usd
CY2024Q3	us-gaap	Derivative Asset Securities Purchased Under Agreements To Resell Securities Borrowed Liability DerivativeAssetSecuritiesPurchasedUnderAgreementsToResellSecuritiesBorrowedLiability	248736000000	usd
CY2024Q3	us-gaap	Derivative Asset Securities Purchased Under Agreements To Resell Securities Borrowed DerivativeAssetSecuritiesPurchasedUnderAgreementsToResellSecuritiesBorrowed	37679000000	usd
CY2024Q3	us-gaap	Derivative Asset Securities Purchased Under Agreements To Resell Securities Borrowed Not Offset Policy Election Deduction DerivativeAssetSecuritiesPurchasedUnderAgreementsToResellSecuritiesBorrowedNotOffsetPolicyElectionDeduction	34969000000	usd
CY2024Q3	us-gaap	Derivative Asset Securities Purchased Under Agreements To Resell Securities Borrowed Collateral Obligation To Return Cash DerivativeAssetSecuritiesPurchasedUnderAgreementsToResellSecuritiesBorrowedCollateralObligationToReturnCash	2000000	usd
CY2024Q3	us-gaap	Derivative Asset Securities Purchased Under Agreements To Resell Securities Borrowed Offset Against Collateral Net Of Not Subject To Master Netting Arrangement Policy Election DerivativeAssetSecuritiesPurchasedUnderAgreementsToResellSecuritiesBorrowedOffsetAgainstCollateralNetOfNotSubjectToMasterNettingArrangementPolicyElection	2708000000	usd
CY2023Q4	us-gaap	Derivative Fair Value Of Derivative Asset DerivativeFairValueOfDerivativeAsset	9538000000	usd
CY2023Q4	us-gaap	Derivative Asset Fair Value Gross Liability DerivativeAssetFairValueGrossLiability	8256000000	usd
CY2023Q4	us-gaap	Derivative Fair Value Of Derivative Asset Amount Not Offset Against Collateral DerivativeFairValueOfDerivativeAssetAmountNotOffsetAgainstCollateral	1282000000	usd
CY2023Q4	us-gaap	Derivative Asset Not Offset Policy Election Deduction DerivativeAssetNotOffsetPolicyElectionDeduction	380000000	usd
CY2023Q4	us-gaap	Derivative Collateral Obligation To Return Cash DerivativeCollateralObligationToReturnCash	0	usd
CY2023Q4	us-gaap	Derivative Asset Fair Value After Offset And Deduction Subject To Master Netting Arrangement DerivativeAssetFairValueAfterOffsetAndDeductionSubjectToMasterNettingArrangement	902000000	usd
CY2023Q4	us-gaap	Derivative Asset Not Subject To Master Netting Arrangement DerivativeAssetNotSubjectToMasterNettingArrangement	993000000	usd
CY2023Q4	us-gaap	Derivative Asset Not Subject To Master Netting Arrangement DerivativeAssetNotSubjectToMasterNettingArrangement	993000000	usd
CY2023Q4	us-gaap	Derivative Asset Not Subject To Master Netting Arrangement DerivativeAssetNotSubjectToMasterNettingArrangement	993000000	usd
CY2023Q4	us-gaap	Derivative Asset Fair Value Gross Asset Including Not Subject To Master Netting Arrangement DerivativeAssetFairValueGrossAssetIncludingNotSubjectToMasterNettingArrangement	10531000000	usd
CY2023Q4	us-gaap	Derivative Asset Fair Value Gross Liability DerivativeAssetFairValueGrossLiability	8256000000	usd
CY2023Q4	us-gaap	Derivative Assets DerivativeAssets	2275000000	usd
CY2023Q4	us-gaap	Derivative Asset Not Offset Policy Election Deduction DerivativeAssetNotOffsetPolicyElectionDeduction	380000000	usd
CY2023Q4	us-gaap	Derivative Collateral Obligation To Return Cash DerivativeCollateralObligationToReturnCash	0	usd
CY2023Q4	us-gaap	Derivative Fair Value Of Derivative Asset Amount Offset Against Collateral DerivativeFairValueOfDerivativeAssetAmountOffsetAgainstCollateral	1895000000	usd
CY2023Q4	us-gaap	Securities Purchased Under Agreements To Resell Gross SecuritiesPurchasedUnderAgreementsToResellGross	169092000000	usd
CY2023Q4	us-gaap	Securities Purchased Under Agreements To Resell Liability SecuritiesPurchasedUnderAgreementsToResellLiability	150667000000	usd
CY2023Q4	us-gaap	Securities Purchased Under Agreements To Resell SecuritiesPurchasedUnderAgreementsToResell	18425000000	usd
CY2023Q4	us-gaap	Securities Purchased Under Agreements To Resell Not Offset Policy Election Deduction SecuritiesPurchasedUnderAgreementsToResellNotOffsetPolicyElectionDeduction	18422000000	usd
CY2023Q4	us-gaap	Securities Purchased Under Agreements To Resell Collateral Obligation To Return Cash SecuritiesPurchasedUnderAgreementsToResellCollateralObligationToReturnCash	0	usd
CY2023Q4	us-gaap	Securities Purchased Under Agreements To Resell Offset Against Collateral Net Of Not Subject To Master Netting Arrangement Policy Election SecuritiesPurchasedUnderAgreementsToResellOffsetAgainstCollateralNetOfNotSubjectToMasterNettingArrangementPolicyElection	3000000	usd
CY2023Q4	bk	Security Borrowed Subject To Master Netting Arrangement Before Offset SecurityBorrowedSubjectToMasterNettingArrangementBeforeOffset	10475000000	usd
CY2023Q4	us-gaap	Securities Borrowed SecuritiesBorrowed	10475000000	usd
CY2023Q4	us-gaap	Securities Borrowed Not Offset Policy Election Deduction SecuritiesBorrowedNotOffsetPolicyElectionDeduction	10011000000	usd
CY2023Q4	bk	Securities Borrowed Offset Against Collateral Subject To Master Netting Arrangement Policy Election SecuritiesBorrowedOffsetAgainstCollateralSubjectToMasterNettingArrangementPolicyElection	464000000	usd
CY2023Q4	us-gaap	Derivative Asset Securities Purchased Under Agreements To Resell Securities Borrowed Gross DerivativeAssetSecuritiesPurchasedUnderAgreementsToResellSecuritiesBorrowedGross	190098000000	usd
CY2023Q4	us-gaap	Derivative Asset Securities Purchased Under Agreements To Resell Securities Borrowed Liability DerivativeAssetSecuritiesPurchasedUnderAgreementsToResellSecuritiesBorrowedLiability	158923000000	usd
CY2023Q4	us-gaap	Derivative Asset Securities Purchased Under Agreements To Resell Securities Borrowed DerivativeAssetSecuritiesPurchasedUnderAgreementsToResellSecuritiesBorrowed	31175000000	usd
CY2023Q4	us-gaap	Derivative Asset Securities Purchased Under Agreements To Resell Securities Borrowed Not Offset Policy Election Deduction DerivativeAssetSecuritiesPurchasedUnderAgreementsToResellSecuritiesBorrowedNotOffsetPolicyElectionDeduction	28813000000	usd
CY2023Q4	us-gaap	Derivative Asset Securities Purchased Under Agreements To Resell Securities Borrowed Collateral Obligation To Return Cash DerivativeAssetSecuritiesPurchasedUnderAgreementsToResellSecuritiesBorrowedCollateralObligationToReturnCash	0	usd
CY2023Q4	us-gaap	Derivative Asset Securities Purchased Under Agreements To Resell Securities Borrowed Offset Against Collateral Net Of Not Subject To Master Netting Arrangement Policy Election DerivativeAssetSecuritiesPurchasedUnderAgreementsToResellSecuritiesBorrowedOffsetAgainstCollateralNetOfNotSubjectToMasterNettingArrangementPolicyElection	2362000000	usd
CY2024Q3	us-gaap	Derivative Fair Value Of Derivative Liability DerivativeFairValueOfDerivativeLiability	7448000000	usd
CY2024Q3	us-gaap	Derivative Liability Fair Value Gross Asset DerivativeLiabilityFairValueGrossAsset	5266000000	usd
CY2024Q3	us-gaap	Derivative Fair Value Of Derivative Liability Amount Not Offset Against Collateral DerivativeFairValueOfDerivativeLiabilityAmountNotOffsetAgainstCollateral	2182000000	usd
CY2024Q3	us-gaap	Derivative Liability Not Offset Policy Election Deduction DerivativeLiabilityNotOffsetPolicyElectionDeduction	116000000	usd
CY2024Q3	us-gaap	Derivative Collateral Right To Reclaim Cash DerivativeCollateralRightToReclaimCash	0	usd
CY2024Q3	us-gaap	Derivative Liability Fair Value After Offset And Deduction Subject To Master Netting Arrangement DerivativeLiabilityFairValueAfterOffsetAndDeductionSubjectToMasterNettingArrangement	2066000000	usd
CY2024Q3	us-gaap	Derivative Liability Not Subject To Master Netting Arrangement DerivativeLiabilityNotSubjectToMasterNettingArrangement	678000000	usd
CY2024Q3	us-gaap	Derivative Liability Fair Value Gross Liability Including Not Subject To Master Netting Arrangement DerivativeLiabilityFairValueGrossLiabilityIncludingNotSubjectToMasterNettingArrangement	8126000000	usd
CY2024Q3	us-gaap	Derivative Liability Fair Value Gross Asset DerivativeLiabilityFairValueGrossAsset	5266000000	usd
CY2024Q3	us-gaap	Derivative Liabilities DerivativeLiabilities	2860000000	usd
CY2024Q3	us-gaap	Derivative Liability Not Offset Policy Election Deduction DerivativeLiabilityNotOffsetPolicyElectionDeduction	116000000	usd
CY2024Q3	us-gaap	Derivative Collateral Right To Reclaim Cash DerivativeCollateralRightToReclaimCash	0	usd
CY2024Q3	us-gaap	Derivative Fair Value Of Derivative Liability Amount Offset Against Collateral DerivativeFairValueOfDerivativeLiabilityAmountOffsetAgainstCollateral	2744000000	usd
CY2024Q3	us-gaap	Securities Sold Under Agreements To Repurchase Gross SecuritiesSoldUnderAgreementsToRepurchaseGross	254051000000	usd
CY2024Q3	us-gaap	Securities Sold Under Agreements To Repurchase Asset SecuritiesSoldUnderAgreementsToRepurchaseAsset	242526000000	usd
CY2024Q3	us-gaap	Securities Sold Under Agreements To Repurchase SecuritiesSoldUnderAgreementsToRepurchase	11525000000	usd
CY2024Q3	us-gaap	Securities Sold Under Agreements To Resell Not Offset Policy Election Deduction SecuritiesSoldUnderAgreementsToResellNotOffsetPolicyElectionDeduction	11523000000	usd
CY2024Q3	us-gaap	Securities Sold Under Agreements To Repurchase Collateral Right To Reclaim Cash SecuritiesSoldUnderAgreementsToRepurchaseCollateralRightToReclaimCash	0	usd
CY2024Q3	us-gaap	Securities Sold Under Agreements To Repurchase Offset Against Collateral Net Of Not Subject To Master Netting Arrangement Policy Election SecuritiesSoldUnderAgreementsToRepurchaseOffsetAgainstCollateralNetOfNotSubjectToMasterNettingArrangementPolicyElection	2000000	usd
CY2024Q3	us-gaap	Securities Loaned Gross SecuritiesLoanedGross	3049000000	usd
CY2024Q3	us-gaap	Securities Loaned SecuritiesLoaned	3049000000	usd
CY2024Q3	us-gaap	Securities Loaned Not Offset Policy Election Deduction SecuritiesLoanedNotOffsetPolicyElectionDeduction	2943000000	usd
CY2024Q3	us-gaap	Securities Loaned Offset Against Collateral Net Of Not Subject To Master Netting Arrangement Policy Election SecuritiesLoanedOffsetAgainstCollateralNetOfNotSubjectToMasterNettingArrangementPolicyElection	106000000	usd
CY2024Q3	us-gaap	Derivative Liability Securities Sold Under Agreements To Resell Securities Loaned Gross DerivativeLiabilitySecuritiesSoldUnderAgreementsToResellSecuritiesLoanedGross	265226000000	usd
CY2024Q3	us-gaap	Derivative Liability Securities Sold Under Agreements To Resell Securities Loaned Asset DerivativeLiabilitySecuritiesSoldUnderAgreementsToResellSecuritiesLoanedAsset	247792000000	usd
CY2024Q3	us-gaap	Derivative Liability Securities Sold Under Agreements To Resell Securities Loaned DerivativeLiabilitySecuritiesSoldUnderAgreementsToResellSecuritiesLoaned	17434000000	usd
CY2024Q3	us-gaap	Derivative Liability Securities Sold Under Agreements To Resell Securities Loaned Not Offset Policy Election Deduction DerivativeLiabilitySecuritiesSoldUnderAgreementsToResellSecuritiesLoanedNotOffsetPolicyElectionDeduction	14582000000	usd
CY2024Q3	us-gaap	Derivative Liability Securities Sold Under Agreements To Resell Securities Loaned Collateral Right To Reclaim Cash DerivativeLiabilitySecuritiesSoldUnderAgreementsToResellSecuritiesLoanedCollateralRightToReclaimCash	0	usd
CY2024Q3	us-gaap	Derivative Liability Securities Sold Under Agreements To Resell Securities Loaned Offset Against Collateral Net Of Not Subject To Master Netting Arrangement Policy Election DerivativeLiabilitySecuritiesSoldUnderAgreementsToResellSecuritiesLoanedOffsetAgainstCollateralNetOfNotSubjectToMasterNettingArrangementPolicyElection	2852000000	usd
CY2023Q4	us-gaap	Derivative Fair Value Of Derivative Liability DerivativeFairValueOfDerivativeLiability	9700000000	usd
CY2023Q4	us-gaap	Derivative Liability Fair Value Gross Asset DerivativeLiabilityFairValueGrossAsset	7090000000	usd
CY2023Q4	us-gaap	Derivative Fair Value Of Derivative Liability Amount Not Offset Against Collateral DerivativeFairValueOfDerivativeLiabilityAmountNotOffsetAgainstCollateral	2610000000	usd
CY2023Q4	us-gaap	Derivative Liability Not Offset Policy Election Deduction DerivativeLiabilityNotOffsetPolicyElectionDeduction	171000000	usd
CY2023Q4	us-gaap	Derivative Collateral Right To Reclaim Cash DerivativeCollateralRightToReclaimCash	0	usd
CY2023Q4	us-gaap	Derivative Liability Fair Value After Offset And Deduction Subject To Master Netting Arrangement DerivativeLiabilityFairValueAfterOffsetAndDeductionSubjectToMasterNettingArrangement	2439000000	usd
CY2023Q4	us-gaap	Derivative Liability Not Subject To Master Netting Arrangement DerivativeLiabilityNotSubjectToMasterNettingArrangement	1246000000	usd
CY2023Q4	us-gaap	Derivative Liability Not Subject To Master Netting Arrangement DerivativeLiabilityNotSubjectToMasterNettingArrangement	1246000000	usd
CY2023Q4	us-gaap	Derivative Liability Fair Value Gross Liability Including Not Subject To Master Netting Arrangement DerivativeLiabilityFairValueGrossLiabilityIncludingNotSubjectToMasterNettingArrangement	10946000000	usd
CY2023Q4	us-gaap	Derivative Liability Fair Value Gross Asset DerivativeLiabilityFairValueGrossAsset	7090000000	usd
CY2023Q4	us-gaap	Derivative Liabilities DerivativeLiabilities	3856000000	usd
CY2023Q4	us-gaap	Derivative Liability Not Offset Policy Election Deduction DerivativeLiabilityNotOffsetPolicyElectionDeduction	171000000	usd
CY2023Q4	us-gaap	Derivative Collateral Right To Reclaim Cash DerivativeCollateralRightToReclaimCash	0	usd
CY2023Q4	us-gaap	Derivative Fair Value Of Derivative Liability Amount Offset Against Collateral DerivativeFairValueOfDerivativeLiabilityAmountOffsetAgainstCollateral	3685000000	usd
CY2023Q4	us-gaap	Securities Sold Under Agreements To Repurchase Gross SecuritiesSoldUnderAgreementsToRepurchaseGross	162661000000	usd
CY2023Q4	us-gaap	Securities Sold Under Agreements To Repurchase Asset SecuritiesSoldUnderAgreementsToRepurchaseAsset	150667000000	usd
CY2023Q4	us-gaap	Securities Sold Under Agreements To Repurchase SecuritiesSoldUnderAgreementsToRepurchase	11994000000	usd
CY2023Q4	us-gaap	Securities Sold Under Agreements To Resell Not Offset Policy Election Deduction SecuritiesSoldUnderAgreementsToResellNotOffsetPolicyElectionDeduction	11966000000	usd
CY2023Q4	us-gaap	Securities Sold Under Agreements To Repurchase Collateral Right To Reclaim Cash SecuritiesSoldUnderAgreementsToRepurchaseCollateralRightToReclaimCash	28000000	usd
CY2023Q4	us-gaap	Securities Sold Under Agreements To Repurchase Offset Against Collateral Net Of Not Subject To Master Netting Arrangement Policy Election SecuritiesSoldUnderAgreementsToRepurchaseOffsetAgainstCollateralNetOfNotSubjectToMasterNettingArrangementPolicyElection	0	usd
CY2023Q4	us-gaap	Securities Loaned Gross SecuritiesLoanedGross	2513000000	usd
CY2023Q4	us-gaap	Securities Loaned SecuritiesLoaned	2513000000	usd
CY2023Q4	us-gaap	Securities Loaned Not Offset Policy Election Deduction SecuritiesLoanedNotOffsetPolicyElectionDeduction	2404000000	usd
CY2023Q4	us-gaap	Securities Loaned Offset Against Collateral Net Of Not Subject To Master Netting Arrangement Policy Election SecuritiesLoanedOffsetAgainstCollateralNetOfNotSubjectToMasterNettingArrangementPolicyElection	109000000	usd
CY2023Q4	us-gaap	Derivative Liability Securities Sold Under Agreements To Resell Securities Loaned Gross DerivativeLiabilitySecuritiesSoldUnderAgreementsToResellSecuritiesLoanedGross	176120000000	usd
CY2023Q4	us-gaap	Derivative Liability Securities Sold Under Agreements To Resell Securities Loaned Asset DerivativeLiabilitySecuritiesSoldUnderAgreementsToResellSecuritiesLoanedAsset	157757000000	usd
CY2023Q4	us-gaap	Derivative Liability Securities Sold Under Agreements To Resell Securities Loaned DerivativeLiabilitySecuritiesSoldUnderAgreementsToResellSecuritiesLoaned	18363000000	usd
CY2023Q4	us-gaap	Derivative Liability Securities Sold Under Agreements To Resell Securities Loaned Not Offset Policy Election Deduction DerivativeLiabilitySecuritiesSoldUnderAgreementsToResellSecuritiesLoanedNotOffsetPolicyElectionDeduction	14541000000	usd
CY2023Q4	us-gaap	Derivative Liability Securities Sold Under Agreements To Resell Securities Loaned Collateral Right To Reclaim Cash DerivativeLiabilitySecuritiesSoldUnderAgreementsToResellSecuritiesLoanedCollateralRightToReclaimCash	28000000	usd
CY2023Q4	us-gaap	Derivative Liability Securities Sold Under Agreements To Resell Securities Loaned Offset Against Collateral Net Of Not Subject To Master Netting Arrangement Policy Election DerivativeLiabilitySecuritiesSoldUnderAgreementsToResellSecuritiesLoanedOffsetAgainstCollateralNetOfNotSubjectToMasterNettingArrangementPolicyElection	3794000000	usd
CY2024Q3	us-gaap	Financial Assets Sold Under Agreements To Repurchase Gross Including Not Subject To Master Netting Arrangement FinancialAssetsSoldUnderAgreementsToRepurchaseGrossIncludingNotSubjectToMasterNettingArrangement	254051000000	usd
CY2023Q4	us-gaap	Financial Assets Sold Under Agreements To Repurchase Gross Including Not Subject To Master Netting Arrangement FinancialAssetsSoldUnderAgreementsToRepurchaseGrossIncludingNotSubjectToMasterNettingArrangement	162661000000	usd
CY2024Q3	us-gaap	Securities Loaned Including Not Subject To Master Netting Arrangement And Assets Other Than Securities Transferred SecuritiesLoanedIncludingNotSubjectToMasterNettingArrangementAndAssetsOtherThanSecuritiesTransferred	3049000000	usd
CY2023Q4	us-gaap	Securities Loaned Including Not Subject To Master Netting Arrangement And Assets Other Than Securities Transferred SecuritiesLoanedIncludingNotSubjectToMasterNettingArrangementAndAssetsOtherThanSecuritiesTransferred	2513000000	usd
CY2024Q3	us-gaap	Secured Borrowings Gross Including Not Subject To Master Netting Arrangement SecuredBorrowingsGrossIncludingNotSubjectToMasterNettingArrangement	257100000000	usd
CY2023Q4	us-gaap	Secured Borrowings Gross Including Not Subject To Master Netting Arrangement SecuredBorrowingsGrossIncludingNotSubjectToMasterNettingArrangement	165174000000	usd
CY2024Q3	bk	Securities Lending Indemnifications Joint Venture SecuritiesLendingIndemnificationsJointVenture	67000000000	usd
CY2023Q4	bk	Securities Lending Indemnifications Joint Venture SecuritiesLendingIndemnificationsJointVenture	59000000000	usd
CY2024Q3	bk	Lending Commitment Maturing Within One Year LendingCommitmentMaturingWithinOneYear	32000000000.0	usd
CY2024Q3	bk	Lending Commitment Maturing After One Through Five Years LendingCommitmentMaturingAfterOneThroughFiveYears	18700000000	usd
CY2024Q3	bk	Lending Commitment Maturing After Five Years LendingCommitmentMaturingAfterFiveYears	352000000	usd
CY2024Q3	us-gaap	Off Balance Sheet Credit Loss Liability OffBalanceSheetCreditLossLiability	75000000	usd
CY2023Q4	us-gaap	Off Balance Sheet Credit Loss Liability OffBalanceSheetCreditLossLiability	87000000	usd
CY2024Q3	bk	Securities Lending Cash Collateral Percentage SecuritiesLendingCashCollateralPercentage	1.02
CY2024Q3	bk	Securities Lending Indemnifications Collateral SecuritiesLendingIndemnificationsCollateral	568000000000	usd
CY2023Q4	bk	Securities Lending Indemnifications Collateral SecuritiesLendingIndemnificationsCollateral	518000000000	usd
CY2023Q4	bk	Securities Lending Indemnifications Joint Venture SecuritiesLendingIndemnificationsJointVenture	59000000000	usd
CY2023Q4	bk	Securities Lending Indemnifications Collateral Joint Venture SecuritiesLendingIndemnificationsCollateralJointVenture	62000000000	usd
	bk	Number Of Principal Businesses NumberOfPrincipalBusinesses	3	business
	us-gaap	Transfer To Other Real Estate TransferToOtherRealEstate	0	usd
	us-gaap	Transfer To Other Real Estate TransferToOtherRealEstate	1000000	usd
	bk	Consolidated Noncash Assets Transfer Of Financial Assets Consolidation Of Variable Interest Entities ConsolidatedNoncashAssetsTransferOfFinancialAssetsConsolidationOfVariableInterestEntities	334000000	usd
	bk	Consolidated Noncash Assets Transfer Of Financial Assets Consolidation Of Variable Interest Entities ConsolidatedNoncashAssetsTransferOfFinancialAssetsConsolidationOfVariableInterestEntities	332000000	usd
	bk	Consolidated Noncash Liabilities Transfer Of Financial Assets Consolidation Of Variable Interest Entities ConsolidatedNoncashLiabilitiesTransferOfFinancialAssetsConsolidationOfVariableInterestEntities	6000000	usd
	bk	Consolidated Noncash Liabilities Transfer Of Financial Assets Consolidation Of Variable Interest Entities ConsolidatedNoncashLiabilitiesTransferOfFinancialAssetsConsolidationOfVariableInterestEntities	6000000	usd
	bk	Consolidated Noncash Noncontrolling Interests Transfer Of Financial Assets Consolidation Of Variable Interest Entities ConsolidatedNoncashNoncontrollingInterestsTransferOfFinancialAssetsConsolidationOfVariableInterestEntities	241000000	usd
	bk	Consolidated Noncash Noncontrolling Interests Transfer Of Financial Assets Consolidation Of Variable Interest Entities ConsolidatedNoncashNoncontrollingInterestsTransferOfFinancialAssetsConsolidationOfVariableInterestEntities	49000000	usd
	bk	Securities Not Settled SecuritiesNotSettled	395000000	usd
	bk	Securities Not Settled SecuritiesNotSettled	234000000	usd
	bk	Securities Sales Not Settled SecuritiesSalesNotSettled	85000000	usd
	bk	Securities Sales Not Settled SecuritiesSalesNotSettled	0	usd
	bk	Securities Matured Not Settled SecuritiesMaturedNotSettled	0	usd
	bk	Securities Matured Not Settled SecuritiesMaturedNotSettled	455000000	usd
	us-gaap	Right Of Use Asset Obtained In Exchange For Operating Lease Liability RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability	174000000	usd
	us-gaap	Right Of Use Asset Obtained In Exchange For Operating Lease Liability RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability	203000000	usd
	bk	Excise Tax On Share Repurchase ExciseTaxOnShareRepurchase	19000000	usd
	bk	Excise Tax On Share Repurchase ExciseTaxOnShareRepurchase	18000000	usd
CY2024Q3	ecd	Non Rule10b51 Arr Trmntd Flag NonRule10b51ArrTrmntdFlag	false
CY2024Q3	ecd	Rule10b51 Arr Trmntd Flag Rule10b51ArrTrmntdFlag	false
CY2024Q3	ecd	Non Rule10b51 Arr Adopted Flag NonRule10b51ArrAdoptedFlag	false
CY2024Q3	ecd	Rule10b51 Arr Adopted Flag Rule10b51ArrAdoptedFlag	false

Files In Submission

Name	View Source	Status
0001390777-24-000133-index-headers.html	Edgar Link	pending
0001390777-24-000133-index.html	Edgar Link	pending
0001390777-24-000133.txt	Edgar Link	pending
0001390777-24-000133-xbrl.zip	Edgar Link	pending
bk-20240930.htm	Edgar Link	pending
bk-20240930.xsd	Edgar Link	pending
Financial_Report.xlsx	Edgar Link	pending
form10-q_ex311x3q24.htm	Edgar Link	pending
form10-q_ex312x3q24.htm	Edgar Link	pending
form10-q_ex321x3q24.htm	Edgar Link	pending
form10-q_ex322x3q24.htm	Edgar Link	pending
MetaLinks.json	Edgar Link	pending
R1.htm	Edgar Link	pending
R10.htm	Edgar Link	pending
R100.htm	Edgar Link	pending
R101.htm	Edgar Link	pending
R102.htm	Edgar Link	pending
R103.htm	Edgar Link	pending
R104.htm	Edgar Link	pending
R105.htm	Edgar Link	pending
R106.htm	Edgar Link	pending
R107.htm	Edgar Link	pending
R11.htm	Edgar Link	pending
R12.htm	Edgar Link	pending
R13.htm	Edgar Link	pending
R14.htm	Edgar Link	pending
R15.htm	Edgar Link	pending
R16.htm	Edgar Link	pending
R17.htm	Edgar Link	pending
R18.htm	Edgar Link	pending
R19.htm	Edgar Link	pending
R2.htm	Edgar Link	pending
R20.htm	Edgar Link	pending
R21.htm	Edgar Link	pending
R22.htm	Edgar Link	pending
R23.htm	Edgar Link	pending
R24.htm	Edgar Link	pending
R25.htm	Edgar Link	pending
R26.htm	Edgar Link	pending
R27.htm	Edgar Link	pending
R28.htm	Edgar Link	pending
R29.htm	Edgar Link	pending
R3.htm	Edgar Link	pending
R30.htm	Edgar Link	pending
R31.htm	Edgar Link	pending
R32.htm	Edgar Link	pending
bk-20240930_def.xml	Edgar Link	unprocessable
bk-20240930_htm.xml	Edgar Link	completed
R33.htm	Edgar Link	pending
R34.htm	Edgar Link	pending
R35.htm	Edgar Link	pending
R36.htm	Edgar Link	pending
R37.htm	Edgar Link	pending
R38.htm	Edgar Link	pending
R39.htm	Edgar Link	pending
R4.htm	Edgar Link	pending
R40.htm	Edgar Link	pending
R41.htm	Edgar Link	pending
R42.htm	Edgar Link	pending
R43.htm	Edgar Link	pending
R44.htm	Edgar Link	pending
R45.htm	Edgar Link	pending
R46.htm	Edgar Link	pending
R47.htm	Edgar Link	pending
R48.htm	Edgar Link	pending
R49.htm	Edgar Link	pending
R5.htm	Edgar Link	pending
R50.htm	Edgar Link	pending
R51.htm	Edgar Link	pending
R52.htm	Edgar Link	pending
R53.htm	Edgar Link	pending
R54.htm	Edgar Link	pending
R55.htm	Edgar Link	pending
R56.htm	Edgar Link	pending
R57.htm	Edgar Link	pending
R58.htm	Edgar Link	pending
R59.htm	Edgar Link	pending
R6.htm	Edgar Link	pending
R60.htm	Edgar Link	pending
R61.htm	Edgar Link	pending
R62.htm	Edgar Link	pending
R63.htm	Edgar Link	pending
R64.htm	Edgar Link	pending
R65.htm	Edgar Link	pending
R66.htm	Edgar Link	pending
R67.htm	Edgar Link	pending
R68.htm	Edgar Link	pending
R69.htm	Edgar Link	pending
R7.htm	Edgar Link	pending
R70.htm	Edgar Link	pending
R71.htm	Edgar Link	pending
R72.htm	Edgar Link	pending
R73.htm	Edgar Link	pending
R74.htm	Edgar Link	pending
R75.htm	Edgar Link	pending
R76.htm	Edgar Link	pending
R77.htm	Edgar Link	pending
R78.htm	Edgar Link	pending
R79.htm	Edgar Link	pending
R8.htm	Edgar Link	pending
R80.htm	Edgar Link	pending
R81.htm	Edgar Link	pending
R82.htm	Edgar Link	pending
R83.htm	Edgar Link	pending
R84.htm	Edgar Link	pending
R85.htm	Edgar Link	pending
R86.htm	Edgar Link	pending
R87.htm	Edgar Link	pending
R88.htm	Edgar Link	pending
R89.htm	Edgar Link	pending
R9.htm	Edgar Link	pending
R90.htm	Edgar Link	pending
R91.htm	Edgar Link	pending
R92.htm	Edgar Link	pending
R93.htm	Edgar Link	pending
R94.htm	Edgar Link	pending
R95.htm	Edgar Link	pending
R96.htm	Edgar Link	pending
R97.htm	Edgar Link	pending
R98.htm	Edgar Link	pending
R99.htm	Edgar Link	pending
report.css	Edgar Link	pending
Show.js	Edgar Link	pending
bk-20240930_lab.xml	Edgar Link	unprocessable
bk-20240930_pre.xml	Edgar Link	unprocessable
FilingSummary.xml	Edgar Link	unprocessable
bk-20240930_cal.xml	Edgar Link	unprocessable

Create your account

Find Stocks Worth Researching

Deeply Understand Businesses

Value Businesses Intelligently

$BK
Bank of New York Mellon Corp Stock $bk

2024 Q3 Form 10-Q Financial Statement

#000139077724000133 Filed on November 01, 2024

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$BK Bank of New York Mellon Corp Stock $bk

2024 Q3 Form 10-Q Financial Statement

#000139077724000133 Filed on November 01, 2024

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$BK
Bank of New York Mellon Corp Stock $bk