$BK
Bank of New York Mellon Corp Stock $bk

$bk Overview Financials Valuation SEC Filings Company Website

2019 Q1 Form 10-Q Financial Statement

#000139077719000063 Filed on May 08, 2019

Income Statement

Concept	2019 Q1	2018 Q4	2018 Q1
Revenue	$1.920B	$1.864B	$1.381B
YoY Change	39.03%	52.91%	43.85%
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	$302.0M	$328.0M	$335.0M
YoY Change	-9.85%	-23.72%	-3.46%
% of Gross Profit
Operating Expenses
YoY Change
Operating Profit
YoY Change
Interest Expense	$1.079B	$979.0M	$462.0M
YoY Change	133.55%	166.03%	175.0%
% of Operating Profit
Other Income/Expense, Net
YoY Change
Pretax Income	$1.193B	$1.020B	$1.444B
YoY Change	-17.38%	40.11%	19.73%
Income Tax	$237.0M	$150.0M	$282.0M
% Of Pretax Income	19.87%	14.71%	19.53%
Net Earnings	$946.0M	$881.0M	$1.171B
YoY Change	-19.21%	-25.02%	27.01%
Net Earnings / Revenue	49.27%	47.26%	84.79%
Basic Earnings Per Share	$0.94	$0.84	$1.11
Diluted Earnings Per Share	$0.94	$0.84	$1.10
COMMON SHARES
Basic Shares Outstanding	962.4M shares	984.3M shares	1.017B shares
Diluted Shares Outstanding	966.0M shares	988.7M shares	1.022B shares

Balance Sheet

Concept	2019 Q1	2018 Q4	2018 Q1
SHORT-TERM ASSETS
Cash & Short-Term Investments
YoY Change
Cash & Equivalents	$5.980B	$5.864B	$4.636B
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	$3.010B	$1.832B	$1.702B
YoY Change	76.85%	12.12%	30.22%
Goodwill	$17.37B	$17.35B	$17.60B
YoY Change	-1.3%	-1.22%	1.39%
Intangibles	$3.193B	$3.220B	$3.370B
YoY Change	-5.25%	-5.6%	-5.04%
Long-Term Investments	$1.117B	$1.064B	$1.080B
YoY Change	3.43%	-1.75%	1.22%
Other Assets	$1.407B	$1.357B	$1.471B
YoY Change	-4.35%	-4.17%	68.31%
Total Long-Term Assets
YoY Change
TOTAL ASSETS
Total Short-Term Assets
Total Long-Term Assets
Total Assets	$346.1B	$362.9B	$373.6B
YoY Change	-7.35%	-2.39%	10.68%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable	$19.31B	$19.73B	$20.17B
YoY Change	-4.27%	-2.24%	-5.32%
Accrued Expenses	$1.370B
YoY Change
Deferred Revenue
YoY Change
Short-Term Debt	$14.53B	$19.41B	$27.09B
YoY Change	-46.34%	-8.73%	84.08%
Long-Term Debt Due
YoY Change
Total Short-Term Liabilities	$25.37B	$25.40B	$25.52B
YoY Change	-0.61%	-3.82%	-4.04%
LONG-TERM LIABILITIES
Long-Term Debt	$31.81B	$29.16B	$27.94B
YoY Change	13.84%	4.23%	6.05%
Other Long-Term Liabilities	$10.58B	$9.255B	$9.083B
YoY Change	16.43%	-7.78%	3.71%
Total Long-Term Liabilities	$42.38B	$38.42B	$37.02B
YoY Change	14.48%	1.06%	5.46%
TOTAL LIABILITIES
Total Short-Term Liabilities	$25.37B	$25.40B	$25.52B
Total Long-Term Liabilities	$42.38B	$38.42B	$37.02B
Total Liabilities	$304.7B	$322.0B	$331.5B
YoY Change	-8.09%	-2.43%	11.34%
SHAREHOLDERS EQUITY
Retained Earnings	$29.38B	$28.65B	$25.58B
YoY Change	14.86%	11.77%	9.79%
Common Stock	$14.00M	$14.00M	$14.00M
YoY Change	0.0%	0.0%	7.69%
Preferred Stock
YoY Change
Treasury Stock (at cost)	$16.07B	$15.52B	$12.89B
YoY Change	24.67%	26.69%	23.47%
Treasury Stock Shares	415.0M shares	404.5M shares	352.2M shares
Shareholders Equity	$41.23B	$40.64B	$41.73B
YoY Change
Total Liabilities & Shareholders Equity	$346.1B	$362.9B	$373.6B
YoY Change	-7.35%	-2.39%	10.68%

Cashflow Statement

Concept	2019 Q1	2018 Q4	2018 Q1
OPERATING ACTIVITIES
Net Income	$946.0M	$881.0M	$1.171B
YoY Change	-19.21%	-25.02%	27.01%
Depreciation, Depletion And Amortization	$302.0M	$328.0M	$335.0M
YoY Change	-9.85%	-23.72%	-3.46%
Cash From Operating Activities	-$949.0M	$3.184B	-$852.0M
YoY Change	11.38%	146.63%	-30.39%
INVESTING ACTIVITIES
Capital Expenditures	$264.0M	-$289.0M	$173.0M
YoY Change	52.6%	9.47%	-39.51%
Acquisitions
YoY Change
Other Investing Activities	-$429.0M	-$14.43B	$501.0M
YoY Change	-185.63%	-23.82%	-202.24%
Cash From Investing Activities	$20.81B	-$14.72B	-$1.430B
YoY Change	-1555.24%	-23.36%	-48.51%
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net	$542.0M		$632.0M
YoY Change	-14.24%		-27.52%
Debt Paid & Issued, Net	$1.500B		$1.400B
YoY Change	7.14%		372.97%
Cash From Financing Activities	-$19.84B	13.46B	$971.0M
YoY Change	-2142.95%	-13.45%	-75.92%
NET CHANGE
Cash From Operating Activities	-$949.0M	3.184B	-$852.0M
Cash From Investing Activities	$20.81B	-14.72B	-$1.430B
Cash From Financing Activities	-$19.84B	13.46B	$971.0M
Net Change In Cash	$35.00M	1.924B	-$1.261B
YoY Change	-102.78%	-181.39%	-1982.09%
FREE CASH FLOW
Cash From Operating Activities	-$949.0M	$3.184B	-$852.0M
Capital Expenditures	$264.0M	-$289.0M	$173.0M
Free Cash Flow	-$1.213B	$3.473B	-$1.025B
YoY Change	18.34%	123.34%	-32.12%

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value	Unit
CY2019Q1	bk	Business Combination Contingent Consideration Arrangements Payment Period BusinessCombinationContingentConsiderationArrangementsPaymentPeriod	P3Y
CY2018Q4	bk	Increase Decrease In Fair Value Of Loans Measured On Nonrecurring Basis Based On Fair Value Of Underlying Collateral IncreaseDecreaseInFairValueOfLoansMeasuredOnNonrecurringBasisBasedOnFairValueOfUnderlyingCollateral	-1000000	USD
CY2019Q1	bk	Value At Risk Assumed Holding Period For Instruments ValueAtRiskAssumedHoldingPeriodForInstruments	P1D
CY2019Q1	dei	Amendment Flag AmendmentFlag	false
CY2019Q1	dei	Current Fiscal Year End Date CurrentFiscalYearEndDate	--12-31
CY2019Q1	dei	Document Fiscal Period Focus DocumentFiscalPeriodFocus	Q1
CY2019Q1	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2019
CY2019Q1	dei	Document Period End Date DocumentPeriodEndDate	2019-03-31
CY2019Q1	dei	Entity Central Index Key EntityCentralIndexKey	0001390777
CY2019Q1	dei	Entity Current Reporting Status EntityCurrentReportingStatus	Yes
CY2019Q1	dei	Entity Emerging Growth Company EntityEmergingGrowthCompany	false
CY2019Q1	dei	Entity Filer Category EntityFilerCategory	Large Accelerated Filer
CY2019Q1	dei	Entity Small Business EntitySmallBusiness	false
CY2019Q1	dei	Trading Symbol TradingSymbol	BK
CY2018Q1	us-gaap	Capitalized Contract Cost Impairment Loss CapitalizedContractCostImpairmentLoss	0	USD
CY2018Q4	us-gaap	Capitalized Contract Cost Impairment Loss CapitalizedContractCostImpairmentLoss	0	USD
CY2018Q1	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	0.24
CY2018Q4	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	0.28
CY2019Q1	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	0.28
CY2018Q4	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	0.01
CY2019Q1	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	0.01
CY2018Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	3500000000	shares
CY2019Q1	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	3500000000	shares
CY2018Q4	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	1364877915	shares
CY2019Q1	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	1372494187	shares
CY2018Q1	us-gaap	Contract With Customer Asset Credit Loss Expense ContractWithCustomerAssetCreditLossExpense	0	USD
CY2018Q4	us-gaap	Contract With Customer Asset Credit Loss Expense ContractWithCustomerAssetCreditLossExpense	0	USD
CY2018Q1	us-gaap	Derivative Loss On Derivative DerivativeLossOnDerivative	0	USD
CY2018Q4	us-gaap	Preferred Stock Par Or Stated Value Per Share PreferredStockParOrStatedValuePerShare	0.01
CY2019Q1	us-gaap	Preferred Stock Par Or Stated Value Per Share PreferredStockParOrStatedValuePerShare	0.01
CY2018Q4	us-gaap	Preferred Stock Shares Authorized PreferredStockSharesAuthorized	100000000	shares
CY2018Q4	us-gaap	Preferred Stock Shares Issued PreferredStockSharesIssued	35826	shares
CY2019Q1	us-gaap	Preferred Stock Shares Issued PreferredStockSharesIssued	35826	shares
CY2018Q4	us-gaap	Treasury Stock Shares TreasuryStockShares	404452246	shares
CY2019Q1	us-gaap	Treasury Stock Shares TreasuryStockShares	414976919	shares
CY2019Q1	dei	Document Type DocumentType	10-Q
CY2019Q1	dei	Entity Registrant Name EntityRegistrantName	BANK OF NEW YORK MELLON CORP
CY2019Q1	dei	Entity Common Stock Shares Outstanding EntityCommonStockSharesOutstanding	957517268	shares
CY2019Q1	bk	Asset Servicing AssetServicing	1122000000	USD
CY2018Q4	bk	Asset Servicing AssetServicing	1126000000	USD
CY2018Q1	bk	Asset Servicing AssetServicing	1168000000	USD
CY2019Q1	bk	Clearing Services ClearingServices	398000000	USD
CY2018Q4	bk	Clearing Services ClearingServices	398000000	USD
CY2018Q1	bk	Clearing Services ClearingServices	424000000	USD
CY2019Q1	bk	Issuer Servicing IssuerServicing	251000000	USD
CY2018Q4	bk	Issuer Servicing IssuerServicing	286000000	USD
CY2018Q1	bk	Issuer Servicing IssuerServicing	260000000	USD
CY2019Q1	bk	Treasury Services TreasuryServices	132000000	USD
CY2018Q4	bk	Treasury Services TreasuryServices	139000000	USD
CY2018Q1	bk	Treasury Services TreasuryServices	138000000	USD
CY2019Q1	bk	Securities Servicing And Treasury Services Fees SecuritiesServicingAndTreasuryServicesFees	1903000000	USD
CY2018Q4	bk	Securities Servicing And Treasury Services Fees SecuritiesServicingAndTreasuryServicesFees	1949000000	USD
CY2018Q1	bk	Securities Servicing And Treasury Services Fees SecuritiesServicingAndTreasuryServicesFees	1990000000	USD
CY2019Q1	bk	Investment Managementand Performance Fees InvestmentManagementandPerformanceFees	841000000	USD
CY2018Q4	bk	Investment Managementand Performance Fees InvestmentManagementandPerformanceFees	884000000	USD
CY2018Q1	bk	Investment Managementand Performance Fees InvestmentManagementandPerformanceFees	950000000	USD
CY2019Q1	bk	Foreign Exchange And Other Trading Activities ForeignExchangeAndOtherTradingActivities	170000000	USD
CY2018Q4	bk	Foreign Exchange And Other Trading Activities ForeignExchangeAndOtherTradingActivities	181000000	USD
CY2018Q1	bk	Foreign Exchange And Other Trading Activities ForeignExchangeAndOtherTradingActivities	209000000	USD
CY2019Q1	bk	Financing Related Fees FinancingRelatedFees	51000000	USD
CY2018Q4	bk	Financing Related Fees FinancingRelatedFees	50000000	USD
CY2018Q1	bk	Financing Related Fees FinancingRelatedFees	52000000	USD
CY2019Q1	bk	Distribution And Servicing DistributionAndServicing	31000000	USD
CY2018Q4	bk	Distribution And Servicing DistributionAndServicing	35000000	USD
CY2018Q1	bk	Distribution And Servicing DistributionAndServicing	36000000	USD
CY2019Q1	bk	Investment And Other Income InvestmentAndOtherIncome	35000000	USD
CY2018Q4	bk	Investment And Other Income InvestmentAndOtherIncome	47000000	USD
CY2018Q1	bk	Investment And Other Income InvestmentAndOtherIncome	82000000	USD
CY2019Q1	bk	Total Fee Revenue TotalFeeRevenue	3031000000	USD
CY2018Q4	bk	Total Fee Revenue TotalFeeRevenue	3146000000	USD
CY2018Q1	bk	Total Fee Revenue TotalFeeRevenue	3319000000	USD
CY2019Q1	us-gaap	Marketable Securities Gain Loss MarketableSecuritiesGainLoss	1000000	USD
CY2018Q4	us-gaap	Marketable Securities Gain Loss MarketableSecuritiesGainLoss	1000000	USD
CY2018Q1	us-gaap	Marketable Securities Gain Loss MarketableSecuritiesGainLoss	-49000000	USD
CY2019Q1	us-gaap	Impairment Of Investments ImpairmentOfInvestments	0	USD
CY2018Q4	us-gaap	Impairment Of Investments ImpairmentOfInvestments	1000000	USD
CY2018Q1	us-gaap	Impairment Of Investments ImpairmentOfInvestments	0	USD
CY2019Q1	bk	Net Securities Gain Loss NetSecuritiesGainLoss	1000000	USD
CY2018Q4	bk	Net Securities Gain Loss NetSecuritiesGainLoss	0	USD
CY2018Q1	bk	Net Securities Gain Loss NetSecuritiesGainLoss	-49000000	USD
CY2019Q1	us-gaap	Noninterest Income NoninterestIncome	3032000000	USD
CY2018Q4	us-gaap	Noninterest Income NoninterestIncome	3146000000	USD
CY2018Q1	us-gaap	Noninterest Income NoninterestIncome	3270000000	USD
CY2019Q1	bk	Investment Income InvestmentIncome	26000000	USD
CY2018Q4	bk	Investment Income InvestmentIncome	-24000000	USD
CY2018Q1	bk	Investment Income InvestmentIncome	-11000000	USD
CY2019Q1	us-gaap	Interest Expense Other InterestExpenseOther	0	USD
CY2018Q4	us-gaap	Interest Expense Other InterestExpenseOther	0	USD
CY2018Q1	us-gaap	Interest Expense Other InterestExpenseOther	0	USD
CY2019Q1	us-gaap	Investment Income Net InvestmentIncomeNet	26000000	USD
CY2018Q4	us-gaap	Investment Income Net InvestmentIncomeNet	-24000000	USD
CY2018Q1	us-gaap	Investment Income Net InvestmentIncomeNet	-11000000	USD
CY2019Q1	us-gaap	Interest And Dividend Income Operating InterestAndDividendIncomeOperating	1920000000	USD
CY2018Q4	us-gaap	Interest And Dividend Income Operating InterestAndDividendIncomeOperating	1864000000	USD
CY2018Q1	us-gaap	Interest And Dividend Income Operating InterestAndDividendIncomeOperating	1381000000	USD
CY2019Q1	us-gaap	Interest Expense InterestExpense	1079000000	USD
CY2018Q4	us-gaap	Interest Expense InterestExpense	979000000	USD
CY2018Q1	us-gaap	Interest Expense InterestExpense	462000000	USD
CY2019Q1	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	841000000	USD
CY2018Q4	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	885000000	USD
CY2018Q1	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	919000000	USD
CY2019Q1	bk	Total Revenues Including Revenue Generated By Variable Interest Entities TotalRevenuesIncludingRevenueGeneratedByVariableInterestEntities	3899000000	USD
CY2018Q4	bk	Total Revenues Including Revenue Generated By Variable Interest Entities TotalRevenuesIncludingRevenueGeneratedByVariableInterestEntities	4007000000	USD
CY2018Q1	bk	Total Revenues Including Revenue Generated By Variable Interest Entities TotalRevenuesIncludingRevenueGeneratedByVariableInterestEntities	4178000000	USD
CY2019Q1	us-gaap	Provision For Loan Lease And Other Losses ProvisionForLoanLeaseAndOtherLosses	7000000	USD
CY2018Q4	us-gaap	Provision For Loan Lease And Other Losses ProvisionForLoanLeaseAndOtherLosses	0	USD
CY2018Q1	us-gaap	Provision For Loan Lease And Other Losses ProvisionForLoanLeaseAndOtherLosses	-5000000	USD
CY2019Q1	us-gaap	Labor And Related Expense LaborAndRelatedExpense	1524000000	USD
CY2018Q4	us-gaap	Labor And Related Expense LaborAndRelatedExpense	1602000000	USD
CY2018Q1	us-gaap	Labor And Related Expense LaborAndRelatedExpense	1576000000	USD
CY2019Q1	us-gaap	Professional Fees ProfessionalFees	325000000	USD
CY2018Q4	us-gaap	Professional Fees ProfessionalFees	383000000	USD
CY2018Q1	us-gaap	Professional Fees ProfessionalFees	291000000	USD
CY2019Q1	us-gaap	Information Technology And Data Processing InformationTechnologyAndDataProcessing	283000000	USD
CY2018Q4	us-gaap	Information Technology And Data Processing InformationTechnologyAndDataProcessing	300000000	USD
CY2018Q1	us-gaap	Information Technology And Data Processing InformationTechnologyAndDataProcessing	234000000	USD
CY2019Q1	us-gaap	Occupancy Net OccupancyNet	137000000	USD
CY2018Q4	us-gaap	Occupancy Net OccupancyNet	196000000	USD
CY2018Q1	us-gaap	Occupancy Net OccupancyNet	139000000	USD
CY2019Q1	bk	Subcustodian And Clearing Expense SubcustodianAndClearingExpense	105000000	USD
CY2018Q4	bk	Subcustodian And Clearing Expense SubcustodianAndClearingExpense	115000000	USD
CY2018Q1	bk	Subcustodian And Clearing Expense SubcustodianAndClearingExpense	119000000	USD
CY2019Q1	us-gaap	Expense Related To Distribution Or Servicing And Underwriting Fees ExpenseRelatedToDistributionOrServicingAndUnderwritingFees	91000000	USD
CY2018Q4	us-gaap	Expense Related To Distribution Or Servicing And Underwriting Fees ExpenseRelatedToDistributionOrServicingAndUnderwritingFees	95000000	USD
CY2018Q1	us-gaap	Expense Related To Distribution Or Servicing And Underwriting Fees ExpenseRelatedToDistributionOrServicingAndUnderwritingFees	106000000	USD
CY2019Q1	us-gaap	Business Development BusinessDevelopment	45000000	USD
CY2018Q4	us-gaap	Business Development BusinessDevelopment	64000000	USD
CY2018Q1	us-gaap	Business Development BusinessDevelopment	51000000	USD
CY2019Q1	bk	Bank Assessment Charges BankAssessmentCharges	31000000	USD
CY2018Q4	bk	Bank Assessment Charges BankAssessmentCharges	22000000	USD
CY2018Q1	bk	Bank Assessment Charges BankAssessmentCharges	52000000	USD
CY2019Q1	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	29000000	USD
CY2018Q4	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	35000000	USD
CY2018Q1	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	49000000	USD
CY2019Q1	us-gaap	Other Noninterest Expense OtherNoninterestExpense	129000000	USD
CY2018Q4	us-gaap	Other Noninterest Expense OtherNoninterestExpense	175000000	USD
CY2018Q1	us-gaap	Other Noninterest Expense OtherNoninterestExpense	122000000	USD
CY2019Q1	us-gaap	Noninterest Expense NoninterestExpense	2699000000	USD
CY2018Q4	us-gaap	Noninterest Expense NoninterestExpense	2987000000	USD
CY2018Q1	us-gaap	Noninterest Expense NoninterestExpense	2739000000	USD
CY2019Q1	bk	Income Loss From Continuing Operations Before Income Taxes IncomeLossFromContinuingOperationsBeforeIncomeTaxes	1193000000	USD
CY2018Q4	bk	Income Loss From Continuing Operations Before Income Taxes IncomeLossFromContinuingOperationsBeforeIncomeTaxes	1020000000	USD
CY2018Q1	bk	Income Loss From Continuing Operations Before Income Taxes IncomeLossFromContinuingOperationsBeforeIncomeTaxes	1444000000	USD
CY2019Q1	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	237000000	USD
CY2018Q4	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	150000000	USD
CY2018Q1	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	282000000	USD
CY2019Q1	us-gaap	Profit Loss ProfitLoss	956000000	USD
CY2018Q4	us-gaap	Profit Loss ProfitLoss	870000000	USD
CY2018Q1	us-gaap	Profit Loss ProfitLoss	1162000000	USD
CY2019Q1	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	10000000	USD
CY2018Q4	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	-11000000	USD
CY2018Q1	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	-9000000	USD
CY2019Q1	us-gaap	Net Income Loss NetIncomeLoss	946000000	USD
CY2018Q4	us-gaap	Net Income Loss NetIncomeLoss	881000000	USD
CY2018Q1	us-gaap	Net Income Loss NetIncomeLoss	1171000000	USD
CY2019Q1	us-gaap	Preferred Stock Dividends Income Statement Impact PreferredStockDividendsIncomeStatementImpact	36000000	USD
CY2018Q4	us-gaap	Preferred Stock Dividends Income Statement Impact PreferredStockDividendsIncomeStatementImpact	49000000	USD
CY2018Q1	us-gaap	Preferred Stock Dividends Income Statement Impact PreferredStockDividendsIncomeStatementImpact	36000000	USD
CY2019Q1	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	910000000	USD
CY2018Q4	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	832000000	USD
CY2018Q1	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	1135000000	USD
CY2019Q1	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	910000000	USD
CY2018Q4	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	832000000	USD
CY2018Q1	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	1135000000	USD
CY2019Q1	bk	Participating Securities Distributed And Undistributed Earnings Basicand Diluted ParticipatingSecuritiesDistributedAndUndistributedEarningsBasicandDiluted	5000000	USD
CY2018Q4	bk	Participating Securities Distributed And Undistributed Earnings Basicand Diluted ParticipatingSecuritiesDistributedAndUndistributedEarningsBasicandDiluted	5000000	USD
CY2018Q1	bk	Participating Securities Distributed And Undistributed Earnings Basicand Diluted ParticipatingSecuritiesDistributedAndUndistributedEarningsBasicandDiluted	8000000	USD
CY2019Q1	bk	Net Income Loss Available To Common Shareholders After Required Adjustments NetIncomeLossAvailableToCommonShareholdersAfterRequiredAdjustments	905000000	USD
CY2018Q4	bk	Net Income Loss Available To Common Shareholders After Required Adjustments NetIncomeLossAvailableToCommonShareholdersAfterRequiredAdjustments	827000000	USD
CY2018Q1	bk	Net Income Loss Available To Common Shareholders After Required Adjustments NetIncomeLossAvailableToCommonShareholdersAfterRequiredAdjustments	1127000000	USD
CY2019Q1	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	962397000	shares
CY2018Q4	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	984343000	shares
CY2018Q1	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	1016797000	shares
CY2019Q1	us-gaap	Weighted Average Number Diluted Shares Outstanding Adjustment WeightedAverageNumberDilutedSharesOutstandingAdjustment	6071000	shares
CY2018Q4	us-gaap	Weighted Average Number Diluted Shares Outstanding Adjustment WeightedAverageNumberDilutedSharesOutstandingAdjustment	6997000	shares
CY2018Q1	us-gaap	Weighted Average Number Diluted Shares Outstanding Adjustment WeightedAverageNumberDilutedSharesOutstandingAdjustment	8188000	shares
CY2019Q1	us-gaap	Weighted Average Number Of Shares Restricted Stock WeightedAverageNumberOfSharesRestrictedStock	2508000	shares
CY2018Q4	us-gaap	Weighted Average Number Of Shares Restricted Stock WeightedAverageNumberOfSharesRestrictedStock	2690000	shares
CY2018Q1	us-gaap	Weighted Average Number Of Shares Restricted Stock WeightedAverageNumberOfSharesRestrictedStock	3254000	shares
CY2019Q1	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	965960000	shares
CY2018Q4	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	988650000	shares
CY2018Q1	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	1021731000	shares
CY2019Q1	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	5550000	shares
CY2018Q4	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	6708000	shares
CY2018Q1	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	7248000	shares
CY2019Q1	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.94
CY2018Q4	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.84
CY2018Q1	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.11
CY2019Q1	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.94
CY2018Q4	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.84
CY2018Q1	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.10
CY2019Q1	us-gaap	Profit Loss ProfitLoss	956000000	USD
CY2018Q4	us-gaap	Profit Loss ProfitLoss	870000000	USD
CY2018Q1	us-gaap	Profit Loss ProfitLoss	1162000000	USD
CY2019Q1	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Net Of Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax	29000000	USD
CY2018Q4	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Net Of Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax	-97000000	USD
CY2018Q1	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Net Of Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax	244000000	USD
CY2019Q1	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax	239000000	USD
CY2018Q4	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax	67000000	USD
CY2018Q1	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax	-275000000	USD
CY2019Q1	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesNetOfTax	1000000	USD
CY2018Q4	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesNetOfTax	1000000	USD
CY2018Q1	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesNetOfTax	-37000000	USD
CY2019Q1	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax	238000000	USD
CY2018Q4	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax	66000000	USD
CY2018Q1	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax	-238000000	USD
CY2019Q1	us-gaap	Other Comprehensive Income Defined Benefit Plans Net Unamortized Gain Loss Arising During Period Net Of Tax OtherComprehensiveIncomeDefinedBenefitPlansNetUnamortizedGainLossArisingDuringPeriodNetOfTax	-9000000	USD
CY2018Q4	us-gaap	Other Comprehensive Income Defined Benefit Plans Net Unamortized Gain Loss Arising During Period Net Of Tax OtherComprehensiveIncomeDefinedBenefitPlansNetUnamortizedGainLossArisingDuringPeriodNetOfTax	-189000000	USD
CY2018Q1	us-gaap	Other Comprehensive Income Defined Benefit Plans Net Unamortized Gain Loss Arising During Period Net Of Tax OtherComprehensiveIncomeDefinedBenefitPlansNetUnamortizedGainLossArisingDuringPeriodNetOfTax	0	USD
CY2019Q1	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	10000000	USD
CY2018Q4	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	18000000	USD
CY2018Q1	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	17000000	USD
CY2019Q1	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Net Of Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax	-1000000	USD
CY2018Q4	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Net Of Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax	171000000	USD
CY2018Q1	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Net Of Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax	-17000000	USD
CY2019Q1	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification And Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTax	5000000	USD
CY2018Q4	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification And Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTax	10000000	USD
CY2018Q1	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification And Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTax	-2000000	USD
CY2019Q1	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	273000000	USD
CY2018Q4	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-192000000	USD
CY2018Q1	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	21000000	USD
CY2019Q1	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	1229000000	USD
CY2018Q4	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	678000000	USD
CY2018Q1	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	1183000000	USD
CY2019Q1	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	10000000	USD
CY2018Q4	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	-11000000	USD
CY2018Q1	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	-9000000	USD
CY2019Q1	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Noncontrolling Interest OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToNoncontrollingInterest	2000000	USD
CY2018Q4	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Noncontrolling Interest OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToNoncontrollingInterest	-4000000	USD
CY2018Q1	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Noncontrolling Interest OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToNoncontrollingInterest	5000000	USD
CY2019Q1	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	1217000000	USD
CY2018Q4	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	693000000	USD
CY2018Q1	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	1187000000	USD
CY2019Q1	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	271000000	USD
CY2018Q4	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	-188000000	USD
CY2018Q1	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	16000000	USD
CY2019Q1	us-gaap	Assets Assets	346132000000	USD
CY2018Q4	us-gaap	Assets Assets	362873000000	USD
CY2019Q1	us-gaap	Liabilities Liabilities	304663000000	USD
CY2018Q4	us-gaap	Liabilities Liabilities	322005000000	USD
CY2019Q1	us-gaap	Temporary Equity Carrying Amount Including Portion Attributable To Noncontrolling Interests TemporaryEquityCarryingAmountIncludingPortionAttributableToNoncontrollingInterests	122000000	USD
CY2018Q4	us-gaap	Temporary Equity Carrying Amount Including Portion Attributable To Noncontrolling Interests TemporaryEquityCarryingAmountIncludingPortionAttributableToNoncontrollingInterests	129000000	USD
CY2019Q1	us-gaap	Preferred Stock Value PreferredStockValue	3542000000	USD
CY2018Q4	us-gaap	Preferred Stock Value PreferredStockValue	3542000000	USD
CY2019Q1	us-gaap	Common Stock Value CommonStockValue	14000000	USD
CY2018Q4	us-gaap	Common Stock Value CommonStockValue	14000000	USD
CY2019Q1	us-gaap	Additional Paid In Capital AdditionalPaidInCapital	27349000000	USD
CY2018Q4	us-gaap	Additional Paid In Capital AdditionalPaidInCapital	27118000000	USD
CY2019Q1	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	29382000000	USD
CY2018Q4	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	28652000000	USD
CY2019Q1	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-2990000000	USD
CY2018Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-3171000000	USD
CY2019Q1	us-gaap	Treasury Stock Value TreasuryStockValue	16072000000	USD
CY2018Q4	us-gaap	Treasury Stock Value TreasuryStockValue	15517000000	USD
CY2019Q1	us-gaap	Stockholders Equity StockholdersEquity	41225000000	USD
CY2018Q4	us-gaap	Stockholders Equity StockholdersEquity	40638000000	USD
CY2019Q1	us-gaap	Minority Interest MinorityInterest	122000000	USD
CY2018Q4	us-gaap	Minority Interest MinorityInterest	101000000	USD
CY2019Q1	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	41347000000	USD
CY2018Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	40739000000	USD
CY2019Q1	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	346132000000	USD
CY2018Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	362873000000	USD
CY2019Q1	us-gaap	Profit Loss ProfitLoss	956000000	USD
CY2018Q1	us-gaap	Profit Loss ProfitLoss	1162000000	USD
CY2019Q1	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	10000000	USD
CY2018Q1	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	-9000000	USD
CY2019Q1	us-gaap	Net Income Loss NetIncomeLoss	946000000	USD
CY2018Q1	us-gaap	Net Income Loss NetIncomeLoss	1171000000	USD
CY2019Q1	us-gaap	Provision For Loan Lease And Other Losses ProvisionForLoanLeaseAndOtherLosses	7000000	USD
CY2018Q1	us-gaap	Provision For Loan Lease And Other Losses ProvisionForLoanLeaseAndOtherLosses	-5000000	USD
CY2019Q1	us-gaap	Pension Contributions PensionContributions	17000000	USD
CY2018Q1	us-gaap	Pension Contributions PensionContributions	3000000	USD
CY2019Q1	us-gaap	Depreciation Amortization And Accretion Net DepreciationAmortizationAndAccretionNet	302000000	USD
CY2018Q1	us-gaap	Depreciation Amortization And Accretion Net DepreciationAmortizationAndAccretionNet	335000000	USD
CY2019Q1	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-28000000	USD
CY2018Q1	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	16000000	USD
CY2019Q1	bk	Net Securities Gain Loss NetSecuritiesGainLoss	1000000	USD
CY2018Q1	bk	Net Securities Gain Loss NetSecuritiesGainLoss	-49000000	USD
CY2019Q1	us-gaap	Increase Decrease In Trading Securities IncreaseDecreaseInTradingSecurities	57000000	USD
CY2018Q1	us-gaap	Increase Decrease In Trading Securities IncreaseDecreaseInTradingSecurities	2214000000	USD
CY2019Q1	us-gaap	Increase Decrease In Other Operating Liabilities IncreaseDecreaseInOtherOperatingLiabilities	-2101000000	USD
CY2018Q1	us-gaap	Increase Decrease In Other Operating Liabilities IncreaseDecreaseInOtherOperatingLiabilities	-201000000	USD
CY2019Q1	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	-949000000	USD
CY2018Q1	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	-852000000	USD
CY2019Q1	us-gaap	Proceeds From Payments For In Interest Bearing Deposits In Banks ProceedsFromPaymentsForInInterestBearingDepositsInBanks	413000000	USD
CY2018Q1	us-gaap	Proceeds From Payments For In Interest Bearing Deposits In Banks ProceedsFromPaymentsForInInterestBearingDepositsInBanks	-3700000000	USD
CY2019Q1	bk	Net Change In Interest Bearing Deposits With Federal Reserve And Other Central Banks NetChangeInInterestBearingDepositsWithFederalReserveAndOtherCentralBanks	7096000000	USD
CY2018Q1	bk	Net Change In Interest Bearing Deposits With Federal Reserve And Other Central Banks NetChangeInInterestBearingDepositsWithFederalReserveAndOtherCentralBanks	1489000000	USD
CY2019Q1	us-gaap	Payments To Acquire Held To Maturity Securities PaymentsToAcquireHeldToMaturitySecurities	1403000000	USD
CY2018Q1	us-gaap	Payments To Acquire Held To Maturity Securities PaymentsToAcquireHeldToMaturitySecurities	1688000000	USD
CY2019Q1	us-gaap	Proceeds From Maturities Prepayments And Calls Of Held To Maturity Securities ProceedsFromMaturitiesPrepaymentsAndCallsOfHeldToMaturitySecurities	914000000	USD
CY2018Q1	us-gaap	Proceeds From Maturities Prepayments And Calls Of Held To Maturity Securities ProceedsFromMaturitiesPrepaymentsAndCallsOfHeldToMaturitySecurities	1011000000	USD
CY2019Q1	bk	Proceeds From Maturities And Calls Of Held To Maturity Securities ProceedsFromMaturitiesAndCallsOfHeldToMaturitySecurities	500000000	USD
CY2018Q1	bk	Proceeds From Maturities And Calls Of Held To Maturity Securities ProceedsFromMaturitiesAndCallsOfHeldToMaturitySecurities	3468000000	USD
CY2019Q1	us-gaap	Payments To Acquire Available For Sale Securities Debt PaymentsToAcquireAvailableForSaleSecuritiesDebt	8894000000	USD
CY2018Q1	us-gaap	Payments To Acquire Available For Sale Securities Debt PaymentsToAcquireAvailableForSaleSecuritiesDebt	8757000000	USD
CY2019Q1	us-gaap	Proceeds From Sale Of Available For Sale Securities Debt ProceedsFromSaleOfAvailableForSaleSecuritiesDebt	3692000000	USD
CY2018Q1	us-gaap	Proceeds From Sale Of Available For Sale Securities Debt ProceedsFromSaleOfAvailableForSaleSecuritiesDebt	4050000000	USD
CY2019Q1	us-gaap	Proceeds From Maturities Prepayments And Calls Of Available For Sale Securities ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities	1400000000	USD
CY2018Q1	us-gaap	Proceeds From Maturities Prepayments And Calls Of Available For Sale Securities ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities	1735000000	USD
CY2019Q1	us-gaap	Proceeds From Sale And Maturity Of Available For Sale Securities ProceedsFromSaleAndMaturityOfAvailableForSaleSecurities	7223000000	USD
CY2018Q1	us-gaap	Proceeds From Sale And Maturity Of Available For Sale Securities ProceedsFromSaleAndMaturityOfAvailableForSaleSecurities	1436000000	USD
CY2019Q1	us-gaap	Payments For Proceeds From Loans And Leases PaymentsForProceedsFromLoansAndLeases	-3010000000	USD
CY2018Q1	us-gaap	Payments For Proceeds From Loans And Leases PaymentsForProceedsFromLoansAndLeases	-752000000	USD
CY2019Q1	us-gaap	Proceeds From Sale Of Loans And Leases Held For Investment ProceedsFromSaleOfLoansAndLeasesHeldForInvestment	51000000	USD
CY2018Q1	us-gaap	Proceeds From Sale Of Loans And Leases Held For Investment ProceedsFromSaleOfLoansAndLeasesHeldForInvestment	1000000	USD
CY2019Q1	us-gaap	Proceeds From Payments For Federal Funds Sold And Securities Purchased Under Agreements To Resell Net ProceedsFromPaymentsForFederalFundsSoldAndSecuritiesPurchasedUnderAgreementsToResellNet	6640000000	USD
CY2018Q1	us-gaap	Proceeds From Payments For Federal Funds Sold And Securities Purchased Under Agreements To Resell Net ProceedsFromPaymentsForFederalFundsSoldAndSecuritiesPurchasedUnderAgreementsToResellNet	-649000000	USD
CY2019Q1	bk	Payments For Proceeds From Other Investments PaymentsForProceedsFromOtherInvestments	-3000000	USD
CY2018Q1	bk	Payments For Proceeds From Other Investments PaymentsForProceedsFromOtherInvestments	-12000000	USD
CY2019Q1	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	264000000	USD
CY2018Q1	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	173000000	USD
CY2019Q1	us-gaap	Proceeds From Divestiture Of Businesses Net Of Cash Divested ProceedsFromDivestitureOfBusinessesNetOfCashDivested	0	USD
CY2018Q1	us-gaap	Proceeds From Divestiture Of Businesses Net Of Cash Divested ProceedsFromDivestitureOfBusinessesNetOfCashDivested	84000000	USD
CY2019Q1	us-gaap	Payments For Proceeds From Other Investing Activities PaymentsForProceedsFromOtherInvestingActivities	-429000000	USD
CY2018Q1	us-gaap	Payments For Proceeds From Other Investing Activities PaymentsForProceedsFromOtherInvestingActivities	501000000	USD
CY2019Q1	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	20810000000	USD
CY2018Q1	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-1430000000	USD
CY2019Q1	us-gaap	Increase Decrease In Deposits IncreaseDecreaseInDeposits	-16146000000	USD
CY2018Q1	us-gaap	Increase Decrease In Deposits IncreaseDecreaseInDeposits	-4283000000	USD
CY2019Q1	us-gaap	Increase Decrease In Federal Funds Purchased And Securities Sold Under Agreements To Repurchase Net IncreaseDecreaseInFederalFundsPurchasedAndSecuritiesSoldUnderAgreementsToRepurchaseNet	-2482000000	USD
CY2018Q1	us-gaap	Increase Decrease In Federal Funds Purchased And Securities Sold Under Agreements To Repurchase Net IncreaseDecreaseInFederalFundsPurchasedAndSecuritiesSoldUnderAgreementsToRepurchaseNet	6437000000	USD
CY2019Q1	us-gaap	Increase Decrease In Payables To Broker Dealers IncreaseDecreaseInPayablesToBrokerDealers	-414000000	USD
CY2018Q1	us-gaap	Increase Decrease In Payables To Broker Dealers IncreaseDecreaseInPayablesToBrokerDealers	-12000000	USD
CY2019Q1	us-gaap	Proceeds From Repayments Of Other Debt ProceedsFromRepaymentsOfOtherDebt	695000000	USD
CY2018Q1	us-gaap	Proceeds From Repayments Of Other Debt ProceedsFromRepaymentsOfOtherDebt	-1524000000	USD
CY2019Q1	us-gaap	Proceeds From Repayments Of Commercial Paper ProceedsFromRepaymentsOfCommercialPaper	834000000	USD
CY2018Q1	us-gaap	Proceeds From Repayments Of Commercial Paper ProceedsFromRepaymentsOfCommercialPaper	861000000	USD
CY2019Q1	us-gaap	Proceeds From Issuance Of Long Term Debt ProceedsFromIssuanceOfLongTermDebt	0	USD
CY2018Q1	us-gaap	Proceeds From Issuance Of Long Term Debt ProceedsFromIssuanceOfLongTermDebt	1745000000	USD
CY2019Q1	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	1500000000	USD
CY2018Q1	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	1400000000	USD
CY2019Q1	us-gaap	Proceeds From Stock Options Exercised ProceedsFromStockOptionsExercised	31000000	USD
CY2018Q1	us-gaap	Proceeds From Stock Options Exercised ProceedsFromStockOptionsExercised	56000000	USD
CY2019Q1	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	13000000	USD
CY2018Q1	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	12000000	USD
CY2019Q1	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	555000000	USD
CY2018Q1	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	644000000	USD
CY2019Q1	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	270000000	USD
CY2018Q1	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	246000000	USD
CY2019Q1	us-gaap	Payments Of Dividends Preferred Stock And Preference Stock PaymentsOfDividendsPreferredStockAndPreferenceStock	36000000	USD
CY2018Q1	us-gaap	Payments Of Dividends Preferred Stock And Preference Stock PaymentsOfDividendsPreferredStockAndPreferenceStock	36000000	USD
CY2019Q1	us-gaap	Proceeds From Payments For Other Financing Activities ProceedsFromPaymentsForOtherFinancingActivities	-7000000	USD
CY2018Q1	us-gaap	Proceeds From Payments For Other Financing Activities ProceedsFromPaymentsForOtherFinancingActivities	5000000	USD
CY2019Q1	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-19837000000	USD
CY2018Q1	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	971000000	USD
CY2019Q1	us-gaap	Effect Of Exchange Rate On Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	11000000	USD
CY2018Q1	us-gaap	Effect Of Exchange Rate On Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	50000000	USD
CY2019Q1	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	35000000	USD
CY2018Q1	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	-1261000000	USD
CY2018Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	8258000000	USD
CY2017Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	7133000000	USD
CY2019Q1	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	8293000000	USD
CY2018Q1	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	5872000000	USD
CY2019Q1	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	5980000000	USD
CY2018Q1	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	4636000000	USD
CY2019Q1	us-gaap	Restricted Cash And Cash Equivalents RestrictedCashAndCashEquivalents	2313000000	USD
CY2018Q1	us-gaap	Restricted Cash And Cash Equivalents RestrictedCashAndCashEquivalents	1236000000	USD
CY2019Q1	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	8293000000	USD
CY2018Q1	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	5872000000	USD
CY2019Q1	us-gaap	Interest Paid Net InterestPaidNet	1122000000	USD
CY2018Q1	us-gaap	Interest Paid Net InterestPaidNet	483000000	USD
CY2019Q1	us-gaap	Income Taxes Paid IncomeTaxesPaid	100000000	USD
CY2018Q1	us-gaap	Income Taxes Paid IncomeTaxesPaid	114000000	USD
CY2019Q1	us-gaap	Proceeds From Income Tax Refunds ProceedsFromIncomeTaxRefunds	3000000	USD
CY2018Q1	us-gaap	Proceeds From Income Tax Refunds ProceedsFromIncomeTaxRefunds	56000000	USD
CY2018Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	40739000000	USD
CY2019Q1	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest Adjusted Balance1 StockholdersEquityIncludingPortionAttributableToNoncontrollingInterestAdjustedBalance1	40739000000	USD
CY2019Q1	us-gaap	Minority Interest Period Increase Decrease MinorityInterestPeriodIncreaseDecrease	30000000	USD
CY2019Q1	bk	Equity Profit Loss EquityProfitLoss	956000000	USD
CY2019Q1	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	271000000	USD
CY2019Q1	us-gaap	Dividends Common Stock DividendsCommonStock	270000000	USD
CY2019Q1	us-gaap	Dividends Preferred Stock DividendsPreferredStock	36000000	USD
CY2019Q1	us-gaap	Treasury Stock Value Acquired Cost Method TreasuryStockValueAcquiredCostMethod	555000000	USD
CY2019Q1	us-gaap	Stock Issued During Period Value Employee Benefit Plan StockIssuedDuringPeriodValueEmployeeBenefitPlan	10000000	USD
CY2019Q1	bk	Stock Issued During Period Value Dividend Reinvestment And Employee Stock Purchase Plan StockIssuedDuringPeriodValueDividendReinvestmentAndEmployeeStockPurchasePlan	11000000	USD
CY2019Q1	us-gaap	Stock Issued During Period Value Stock Options Exercised StockIssuedDuringPeriodValueStockOptionsExercised	191000000	USD
CY2019Q1	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	41347000000	USD
CY2018Q3	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	41650000000	USD
CY2018Q4	us-gaap	Minority Interest Period Increase Decrease MinorityInterestPeriodIncreaseDecrease	51000000	USD
CY2018Q4	bk	Equity Profit Loss EquityProfitLoss	870000000	USD
CY2018Q4	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	-188000000	USD
CY2018Q4	us-gaap	Dividends Common Stock DividendsCommonStock	278000000	USD
CY2018Q4	us-gaap	Dividends Preferred Stock DividendsPreferredStock	49000000	USD
CY2018Q4	us-gaap	Treasury Stock Value Acquired Cost Method TreasuryStockValueAcquiredCostMethod	1372000000	USD
CY2018Q4	us-gaap	Stock Issued During Period Value Employee Benefit Plan StockIssuedDuringPeriodValueEmployeeBenefitPlan	7000000	USD
CY2018Q4	bk	Stock Issued During Period Value Dividend Reinvestment And Employee Stock Purchase Plan StockIssuedDuringPeriodValueDividendReinvestmentAndEmployeeStockPurchasePlan	7000000	USD
CY2018Q4	us-gaap	Stock Issued During Period Value Stock Options Exercised StockIssuedDuringPeriodValueStockOptionsExercised	41000000	USD
CY2018Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	40739000000	USD
CY2017Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	41567000000	USD
CY2018Q1	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest Adjusted Balance1 StockholdersEquityIncludingPortionAttributableToNoncontrollingInterestAdjustedBalance1	41537000000	USD
CY2018Q1	us-gaap	Minority Interest Period Increase Decrease MinorityInterestPeriodIncreaseDecrease	-104000000	USD
CY2018Q1	bk	Equity Profit Loss EquityProfitLoss	1160000000	USD
CY2018Q1	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	16000000	USD
CY2018Q1	us-gaap	Dividends Common Stock DividendsCommonStock	246000000	USD
CY2018Q1	us-gaap	Dividends Preferred Stock DividendsPreferredStock	36000000	USD
CY2018Q1	us-gaap	Treasury Stock Value Acquired Cost Method TreasuryStockValueAcquiredCostMethod	644000000	USD
CY2018Q1	us-gaap	Stock Issued During Period Value Employee Benefit Plan StockIssuedDuringPeriodValueEmployeeBenefitPlan	10000000	USD
CY2018Q1	bk	Stock Issued During Period Value Dividend Reinvestment And Employee Stock Purchase Plan StockIssuedDuringPeriodValueDividendReinvestmentAndEmployeeStockPurchasePlan	9000000	USD
CY2018Q1	us-gaap	Stock Issued During Period Value Stock Options Exercised StockIssuedDuringPeriodValueStockOptionsExercised	238000000	USD
CY2018Q1	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	41940000000	USD
CY2019Q1	us-gaap	Prior Period Reclassification Adjustment Description PriorPeriodReclassificationAdjustmentDescription	Certain immaterial reclassifications have been made to prior periods to place them on a basis comparable with the current period presentation.
CY2019Q1	us-gaap	Use Of Estimates UseOfEstimates	Use of estimates<div style="line-height:120%;text-align:left;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"><br/></span></div>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 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. Amounts subject to estimates are items such as allowance for loan losses and lending-related commitments, fair value of financial instruments and derivatives, goodwill and other intangibles and litigation and regulatory contingencies. Among other effects, such changes in estimates could result in future impairments of goodwill and intangible assets and establishment of allowances for loan losses and lending-related commitments as well as accruals for litigation and regulatory contingencies.
CY2019Q1	us-gaap	Payments For Previous Acquisition PaymentsForPreviousAcquisition	0	USD
CY2019Q1	us-gaap	Business Combination Contingent Consideration Arrangements Range Of Outcomes Value Low BusinessCombinationContingentConsiderationArrangementsRangeOfOutcomesValueLow	4000000	USD
CY2019Q1	us-gaap	Business Combination Contingent Consideration Arrangements Range Of Outcomes Value High BusinessCombinationContingentConsiderationArrangementsRangeOfOutcomesValueHigh	21000000	USD
CY2019Q1	us-gaap	Available For Sale Debt Securities Amortized Cost Basis AvailableForSaleDebtSecuritiesAmortizedCostBasis	83243000000	USD
CY2019Q1	us-gaap	Available For Sale Debt Securities Accumulated Gross Unrealized Gain Before Tax AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax	839000000	USD
CY2019Q1	us-gaap	Available For Sale Debt Securities Accumulated Gross Unrealized Loss Before Tax AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax	559000000	USD
CY2019Q1	us-gaap	Available For Sale Securities Debt Securities AvailableForSaleSecuritiesDebtSecurities	83523000000	USD
CY2019Q1	us-gaap	Held To Maturity Securities HeldToMaturitySecurities	33981000000	USD
CY2019Q1	us-gaap	Held To Maturity Securities Accumulated Unrecognized Holding Gain HeldToMaturitySecuritiesAccumulatedUnrecognizedHoldingGain	140000000	USD
CY2019Q1	us-gaap	Held To Maturity Securities Accumulated Unrecognized Holding Loss HeldToMaturitySecuritiesAccumulatedUnrecognizedHoldingLoss	412000000	USD
CY2019Q1	us-gaap	Held To Maturity Securities Fair Value HeldToMaturitySecuritiesFairValue	33709000000	USD
CY2019Q1	us-gaap	Debt Securities Available For Sale And Held To Maturity DebtSecuritiesAvailableForSaleAndHeldToMaturity	117224000000	USD
CY2019Q1	bk	Debt Securities Availableforsaleand Heldtomaturity Unrealized Gain DebtSecuritiesAvailableforsaleandHeldtomaturityUnrealizedGain	979000000	USD
CY2019Q1	bk	Debt Securities Availableforsaleand Heldtomaturity Unrealized Loss DebtSecuritiesAvailableforsaleandHeldtomaturityUnrealizedLoss	971000000	USD
CY2019Q1	bk	Debt Securities Availableforsaleand Heldtomaturity Fair Value DebtSecuritiesAvailableforsaleandHeldtomaturityFairValue	117232000000	USD
CY2019Q1	bk	Accumulated Other Comprehensive Income Transfers From Available For Saleto Held To Maturity Securities Gross Unrealized Gains AccumulatedOtherComprehensiveIncomeTransfersFromAvailableForSaletoHeldToMaturitySecuritiesGrossUnrealizedGains	38000000	USD
CY2019Q1	bk	Accumulated Other Comprehensive Income Transfers From Available For Sale To Held To Maturity Securities Gross Unrealized Losses AccumulatedOtherComprehensiveIncomeTransfersFromAvailableForSaleToHeldToMaturitySecuritiesGrossUnrealizedLosses	82000000	USD
CY2018Q4	us-gaap	Available For Sale Debt Securities Amortized Cost Basis AvailableForSaleDebtSecuritiesAmortizedCostBasis	86167000000	USD
CY2018Q4	us-gaap	Available For Sale Debt Securities Accumulated Gross Unrealized Gain Before Tax AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax	595000000	USD
CY2018Q4	us-gaap	Available For Sale Debt Securities Accumulated Gross Unrealized Loss Before Tax AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax	953000000	USD
CY2018Q4	us-gaap	Available For Sale Securities Debt Securities AvailableForSaleSecuritiesDebtSecurities	85809000000	USD
CY2018Q4	us-gaap	Held To Maturity Securities HeldToMaturitySecurities	33982000000	USD
CY2018Q4	us-gaap	Held To Maturity Securities Accumulated Unrecognized Holding Gain HeldToMaturitySecuritiesAccumulatedUnrecognizedHoldingGain	67000000	USD
CY2018Q4	us-gaap	Held To Maturity Securities Accumulated Unrecognized Holding Loss HeldToMaturitySecuritiesAccumulatedUnrecognizedHoldingLoss	747000000	USD
CY2018Q4	us-gaap	Held To Maturity Securities Fair Value HeldToMaturitySecuritiesFairValue	33302000000	USD
CY2018Q4	us-gaap	Debt Securities Available For Sale And Held To Maturity DebtSecuritiesAvailableForSaleAndHeldToMaturity	120149000000	USD
CY2018Q4	bk	Debt Securities Availableforsaleand Heldtomaturity Unrealized Gain DebtSecuritiesAvailableforsaleandHeldtomaturityUnrealizedGain	662000000	USD
CY2018Q4	bk	Debt Securities Availableforsaleand Heldtomaturity Unrealized Loss DebtSecuritiesAvailableforsaleandHeldtomaturityUnrealizedLoss	1700000000	USD
CY2018Q4	bk	Debt Securities Availableforsaleand Heldtomaturity Fair Value DebtSecuritiesAvailableforsaleandHeldtomaturityFairValue	119111000000	USD
CY2018Q4	bk	Accumulated Other Comprehensive Income Transfers From Available For Saleto Held To Maturity Securities Gross Unrealized Gains AccumulatedOtherComprehensiveIncomeTransfersFromAvailableForSaletoHeldToMaturitySecuritiesGrossUnrealizedGains	39000000	USD
CY2018Q4	bk	Accumulated Other Comprehensive Income Transfers From Available For Sale To Held To Maturity Securities Gross Unrealized Losses AccumulatedOtherComprehensiveIncomeTransfersFromAvailableForSaleToHeldToMaturitySecuritiesGrossUnrealizedLosses	87000000	USD
CY2019Q1	bk	Realized Securities Gross Gains RealizedSecuritiesGrossGains	5000000	USD
CY2018Q4	bk	Realized Securities Gross Gains RealizedSecuritiesGrossGains	3000000	USD
CY2018Q1	bk	Realized Securities Gross Gains RealizedSecuritiesGrossGains	2000000	USD
CY2019Q1	bk	Realized Securities Gross Losses RealizedSecuritiesGrossLosses	4000000	USD
CY2018Q4	bk	Realized Securities Gross Losses RealizedSecuritiesGrossLosses	2000000	USD
CY2018Q1	bk	Realized Securities Gross Losses RealizedSecuritiesGrossLosses	51000000	USD
CY2019Q1	us-gaap	Other Than Temporary Impairment Losses Investments Portion Recognized In Earnings Net OtherThanTemporaryImpairmentLossesInvestmentsPortionRecognizedInEarningsNet	0	USD
CY2018Q4	us-gaap	Other Than Temporary Impairment Losses Investments Portion Recognized In Earnings Net OtherThanTemporaryImpairmentLossesInvestmentsPortionRecognizedInEarningsNet	1000000	USD
CY2018Q1	us-gaap	Other Than Temporary Impairment Losses Investments Portion Recognized In Earnings Net OtherThanTemporaryImpairmentLossesInvestmentsPortionRecognizedInEarningsNet	0	USD
CY2019Q1	bk	Net Securities Gain Loss NetSecuritiesGainLoss	1000000	USD
CY2018Q4	bk	Net Securities Gain Loss NetSecuritiesGainLoss	0	USD
CY2018Q1	bk	Net Securities Gain Loss NetSecuritiesGainLoss	-49000000	USD
CY2019Q1	bk	Accumulated Other Comprehensive Income Transfers From Available For Sale To Held To Maturity Securities Gross Unrealized Losses AccumulatedOtherComprehensiveIncomeTransfersFromAvailableForSaleToHeldToMaturitySecuritiesGrossUnrealizedLosses	82000000	USD
CY2018Q4	bk	Accumulated Other Comprehensive Income Transfers From Available For Sale To Held To Maturity Securities Gross Unrealized Losses AccumulatedOtherComprehensiveIncomeTransfersFromAvailableForSaleToHeldToMaturitySecuritiesGrossUnrealizedLosses	87000000	USD
CY2019Q1	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position Less Than12 Months DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12Months	23787000000	USD
CY2019Q1	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position Less Than12 Months Accumulated Loss DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss	110000000	USD
CY2019Q1	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position12 Months Or Longer DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLonger	21712000000	USD
CY2019Q1	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position12 Months Or Longer Accumulated Loss DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss	449000000	USD
CY2019Q1	us-gaap	Debt Securities Available For Sale Unrealized Loss Position DebtSecuritiesAvailableForSaleUnrealizedLossPosition	45499000000	USD
CY2019Q1	us-gaap	Debt Securities Available For Sale Unrealized Loss Position Accumulated Loss DebtSecuritiesAvailableForSaleUnrealizedLossPositionAccumulatedLoss	559000000	USD
CY2019Q1	us-gaap	Held To Maturity Securities Continuous Unrealized Loss Position Less Than Twelve Months Fair Value HeldToMaturitySecuritiesContinuousUnrealizedLossPositionLessThanTwelveMonthsFairValue	622000000	USD
CY2019Q1	us-gaap	Held To Maturity Securities Continuous Unrealized Loss Position Less Than12 Months Accumulated Loss HeldToMaturitySecuritiesContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss	2000000	USD
CY2019Q1	us-gaap	Held To Maturity Securities Continuous Unrealized Loss Position Twelve Months Or Longer Fair Value HeldToMaturitySecuritiesContinuousUnrealizedLossPositionTwelveMonthsOrLongerFairValue	23641000000	USD
CY2019Q1	us-gaap	Held To Maturity Securities Continuous Unrealized Loss Position12 Months Or Longer Accumulated Loss HeldToMaturitySecuritiesContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss	410000000	USD
CY2019Q1	us-gaap	Held To Maturity Securities Continuous Unrealized Loss Position Fair Value HeldToMaturitySecuritiesContinuousUnrealizedLossPositionFairValue	24263000000	USD
CY2019Q1	us-gaap	Held To Maturity Securities Continuous Unrealized Loss Position Accumulated Loss HeldToMaturitySecuritiesContinuousUnrealizedLossPositionAccumulatedLoss	412000000	USD
CY2019Q1	bk	Debt Securities Availableforsaleand Heldtomaturity Continuous Unrealized Loss Position Lessthan12 Months Fair Value DebtSecuritiesAvailableforsaleandHeldtomaturityContinuousUnrealizedLossPositionLessthan12MonthsFairValue	24409000000	USD
CY2019Q1	bk	Debt Securities Availableforsaleand Heldtomaturity Continuous Unrealized Loss Position Lessthan12 Months Accumulated Loss DebtSecuritiesAvailableforsaleandHeldtomaturityContinuousUnrealizedLossPositionLessthan12MonthsAccumulatedLoss	112000000	USD
CY2019Q1	bk	Debt Securities Availableforsaleand Heldtomaturity Continuous Unrealized Loss Position12 Monthsor Longer Fair Value DebtSecuritiesAvailableforsaleandHeldtomaturityContinuousUnrealizedLossPosition12MonthsorLongerFairValue	45353000000	USD
CY2019Q1	bk	Debt Securities Availableforsaleand Heldtomaturity Continuous Unrealized Loss Position12 Monthsor Longer Accumulated Loss DebtSecuritiesAvailableforsaleandHeldtomaturityContinuousUnrealizedLossPosition12MonthsorLongerAccumulatedLoss	859000000	USD
CY2019Q1	bk	Debt Securities Availableforsaleand Heldtomaturity Unrealized Loss Position Fair Value DebtSecuritiesAvailableforsaleandHeldtomaturityUnrealizedLossPositionFairValue	69762000000	USD
CY2019Q1	bk	Debt Securities Availableforsaleand Heldtomaturity Unrealized Loss Position Accumulated Loss DebtSecuritiesAvailableforsaleandHeldtomaturityUnrealizedLossPositionAccumulatedLoss	971000000	USD
CY2019Q1	bk	Accumulated Other Comprehensive Income Transfers From Available For Sale To Held To Maturity Securities Gross Unrealized Losses Greater Than Twelve Months AccumulatedOtherComprehensiveIncomeTransfersFromAvailableForSaleToHeldToMaturitySecuritiesGrossUnrealizedLossesGreaterThanTwelveMonths	82000000	USD
CY2019Q1	bk	Accumulated Other Comprehensive Income Transfers From Available For Sale To Held To Maturity Securities Gross Unrealized Losses Lessthan Twelve Months AccumulatedOtherComprehensiveIncomeTransfersFromAvailableForSaleToHeldToMaturitySecuritiesGrossUnrealizedLossesLessthanTwelveMonths	0	USD
CY2018Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position Less Than12 Months DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12Months	29115000000	USD
CY2018Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position Less Than12 Months Accumulated Loss DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss	215000000	USD
CY2018Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position12 Months Or Longer DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLonger	23608000000	USD
CY2018Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position12 Months Or Longer Accumulated Loss DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss	738000000	USD
CY2018Q4	us-gaap	Debt Securities Available For Sale Unrealized Loss Position DebtSecuritiesAvailableForSaleUnrealizedLossPosition	52723000000	USD
CY2018Q4	us-gaap	Debt Securities Available For Sale Unrealized Loss Position Accumulated Loss DebtSecuritiesAvailableForSaleUnrealizedLossPositionAccumulatedLoss	953000000	USD
CY2018Q4	us-gaap	Held To Maturity Securities Continuous Unrealized Loss Position Less Than Twelve Months Fair Value HeldToMaturitySecuritiesContinuousUnrealizedLossPositionLessThanTwelveMonthsFairValue	5258000000	USD
CY2018Q4	us-gaap	Held To Maturity Securities Continuous Unrealized Loss Position Less Than12 Months Accumulated Loss HeldToMaturitySecuritiesContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss	66000000	USD
CY2018Q4	us-gaap	Held To Maturity Securities Continuous Unrealized Loss Position Twelve Months Or Longer Fair Value HeldToMaturitySecuritiesContinuousUnrealizedLossPositionTwelveMonthsOrLongerFairValue	23246000000	USD
CY2018Q4	us-gaap	Held To Maturity Securities Continuous Unrealized Loss Position12 Months Or Longer Accumulated Loss HeldToMaturitySecuritiesContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss	681000000	USD
CY2018Q4	us-gaap	Held To Maturity Securities Continuous Unrealized Loss Position Fair Value HeldToMaturitySecuritiesContinuousUnrealizedLossPositionFairValue	28504000000	USD
CY2018Q4	us-gaap	Held To Maturity Securities Continuous Unrealized Loss Position Accumulated Loss HeldToMaturitySecuritiesContinuousUnrealizedLossPositionAccumulatedLoss	747000000	USD
CY2018Q4	bk	Debt Securities Availableforsaleand Heldtomaturity Continuous Unrealized Loss Position Lessthan12 Months Fair Value DebtSecuritiesAvailableforsaleandHeldtomaturityContinuousUnrealizedLossPositionLessthan12MonthsFairValue	34373000000	USD
CY2018Q4	bk	Debt Securities Availableforsaleand Heldtomaturity Continuous Unrealized Loss Position Lessthan12 Months Accumulated Loss DebtSecuritiesAvailableforsaleandHeldtomaturityContinuousUnrealizedLossPositionLessthan12MonthsAccumulatedLoss	281000000	USD
CY2018Q4	bk	Debt Securities Availableforsaleand Heldtomaturity Continuous Unrealized Loss Position12 Monthsor Longer Fair Value DebtSecuritiesAvailableforsaleandHeldtomaturityContinuousUnrealizedLossPosition12MonthsorLongerFairValue	46854000000	USD
CY2018Q4	bk	Debt Securities Availableforsaleand Heldtomaturity Continuous Unrealized Loss Position12 Monthsor Longer Accumulated Loss DebtSecuritiesAvailableforsaleandHeldtomaturityContinuousUnrealizedLossPosition12MonthsorLongerAccumulatedLoss	1419000000	USD
CY2018Q4	bk	Debt Securities Availableforsaleand Heldtomaturity Unrealized Loss Position Fair Value DebtSecuritiesAvailableforsaleandHeldtomaturityUnrealizedLossPositionFairValue	81227000000	USD
CY2018Q4	bk	Debt Securities Availableforsaleand Heldtomaturity Unrealized Loss Position Accumulated Loss DebtSecuritiesAvailableforsaleandHeldtomaturityUnrealizedLossPositionAccumulatedLoss	1700000000	USD
CY2018Q4	bk	Accumulated Other Comprehensive Income Transfers From Available For Sale To Held To Maturity Securities Gross Unrealized Losses Greater Than Twelve Months AccumulatedOtherComprehensiveIncomeTransfersFromAvailableForSaleToHeldToMaturitySecuritiesGrossUnrealizedLossesGreaterThanTwelveMonths	87000000	USD
CY2018Q4	bk	Accumulated Other Comprehensive Income Transfers From Available For Sale To Held To Maturity Securities Gross Unrealized Losses Lessthan Twelve Months AccumulatedOtherComprehensiveIncomeTransfersFromAvailableForSaleToHeldToMaturitySecuritiesGrossUnrealizedLossesLessthanTwelveMonths	0	USD
CY2019Q1	us-gaap	Available For Sale Securities Debt Maturities Within One Year Fair Value AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearFairValue	10421000000	USD
CY2019Q1	us-gaap	Available For Sale Securities Debt Maturities After One Through Five Years Fair Value AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsFairValue	20156000000	USD
CY2019Q1	us-gaap	Available For Sale Securities Debt Maturities After Five Through Ten Years Fair Value AvailableForSaleSecuritiesDebtMaturitiesAfterFiveThroughTenYearsFairValue	6254000000	USD
CY2019Q1	us-gaap	Available For Sale Securities Debt Maturities After Ten Years Fair Value AvailableForSaleSecuritiesDebtMaturitiesAfterTenYearsFairValue	3263000000	USD
CY2019Q1	us-gaap	Available For Sale Securities Debt Securities AvailableForSaleSecuritiesDebtSecurities	83523000000	USD
CY2019Q1	us-gaap	Held To Maturity Securities Debt Maturities Within One Year Net Carrying Amount HeldToMaturitySecuritiesDebtMaturitiesWithinOneYearNetCarryingAmount	2331000000	USD
CY2019Q1	us-gaap	Held To Maturity Securities Debt Maturities After One Through Five Years Net Carrying Amount HeldToMaturitySecuritiesDebtMaturitiesAfterOneThroughFiveYearsNetCarryingAmount	3832000000	USD
CY2019Q1	us-gaap	Held To Maturity Securities Debt Maturities After Five Through Ten Years Net Carrying Amount HeldToMaturitySecuritiesDebtMaturitiesAfterFiveThroughTenYearsNetCarryingAmount	1011000000	USD
CY2019Q1	us-gaap	Held To Maturity Securities Debt Maturities After Ten Years Net Carrying Amount HeldToMaturitySecuritiesDebtMaturitiesAfterTenYearsNetCarryingAmount	14000000	USD
CY2019Q1	us-gaap	Held To Maturity Securities HeldToMaturitySecurities	33981000000	USD
CY2018Q4	us-gaap	Other Than Temporary Impairment Credit Losses Recognized In Earnings Credit Losses On Debt Securities Held OtherThanTemporaryImpairmentCreditLossesRecognizedInEarningsCreditLossesOnDebtSecuritiesHeld	78000000	USD
CY2017Q4	us-gaap	Other Than Temporary Impairment Credit Losses Recognized In Earnings Credit Losses On Debt Securities Held OtherThanTemporaryImpairmentCreditLossesRecognizedInEarningsCreditLossesOnDebtSecuritiesHeld	84000000	USD
CY2019Q1	us-gaap	Other Than Temporary Impairment Credit Losses Recognized In Earnings Additions No Previous Impairment OtherThanTemporaryImpairmentCreditLossesRecognizedInEarningsAdditionsNoPreviousImpairment	0	USD
CY2018Q1	us-gaap	Other Than Temporary Impairment Credit Losses Recognized In Earnings Additions No Previous Impairment OtherThanTemporaryImpairmentCreditLossesRecognizedInEarningsAdditionsNoPreviousImpairment	0	USD
CY2019Q1	us-gaap	Other Than Temporary Impairment Credit Losses Recognized In Earnings Additions Additional Credit Losses OtherThanTemporaryImpairmentCreditLossesRecognizedInEarningsAdditionsAdditionalCreditLosses	0	USD
CY2018Q1	us-gaap	Other Than Temporary Impairment Credit Losses Recognized In Earnings Additions Additional Credit Losses OtherThanTemporaryImpairmentCreditLossesRecognizedInEarningsAdditionsAdditionalCreditLosses	0	USD
CY2019Q1	us-gaap	Other Than Temporary Impairment Credit Losses Recognized In Earnings Reductions Securities Sold OtherThanTemporaryImpairmentCreditLossesRecognizedInEarningsReductionsSecuritiesSold	1000000	USD
CY2018Q1	us-gaap	Other Than Temporary Impairment Credit Losses Recognized In Earnings Reductions Securities Sold OtherThanTemporaryImpairmentCreditLossesRecognizedInEarningsReductionsSecuritiesSold	4000000	USD
CY2019Q1	us-gaap	Other Than Temporary Impairment Credit Losses Recognized In Earnings Credit Losses On Debt Securities Held OtherThanTemporaryImpairmentCreditLossesRecognizedInEarningsCreditLossesOnDebtSecuritiesHeld	77000000	USD
CY2018Q1	us-gaap	Other Than Temporary Impairment Credit Losses Recognized In Earnings Credit Losses On Debt Securities Held OtherThanTemporaryImpairmentCreditLossesRecognizedInEarningsCreditLossesOnDebtSecuritiesHeld	80000000	USD
CY2019Q1	us-gaap	Debt Securities Available For Sale Realized Gain Loss DebtSecuritiesAvailableForSaleRealizedGainLoss	1000000	USD
CY2018Q4	us-gaap	Debt Securities Available For Sale Realized Gain Loss DebtSecuritiesAvailableForSaleRealizedGainLoss	0	USD
CY2018Q1	us-gaap	Debt Securities Available For Sale Realized Gain Loss DebtSecuritiesAvailableForSaleRealizedGainLoss	-49000000	USD
CY2019Q1	us-gaap	Pledged Assets Not Separately Reported On Statement Of Financial Position PledgedAssetsNotSeparatelyReportedOnStatementOfFinancialPosition	116000000000	USD
CY2019Q1	bk	Pledged Assets Other Not Separately Reportedon Statementof Financial Position Potential Borrowingsatthe Federal Reserve Discount Window PledgedAssetsOtherNotSeparatelyReportedonStatementofFinancialPositionPotentialBorrowingsattheFederalReserveDiscountWindow	89000000000	USD
CY2019Q1	bk	Pledged Asset Other Not Separately Reportedon Statementof Financial Position Potential Borrowingsatthe Federal Home Loan Bank PledgedAssetOtherNotSeparatelyReportedonStatementofFinancialPositionPotentialBorrowingsattheFederalHomeLoanBank	7000000000	USD
CY2019Q1	us-gaap	Pledged Financial Instruments Not Separately Reported Securities Pledged PledgedFinancialInstrumentsNotSeparatelyReportedSecuritiesPledged	97000000000	USD
CY2019Q1	us-gaap	Pledged Financial Instruments Not Separately Reported Loans Receivable Pledged As Collateral PledgedFinancialInstrumentsNotSeparatelyReportedLoansReceivablePledgedAsCollateral	15000000000	USD
CY2019Q1	bk	Pledged Financial Instruments Not Separately Reported Trade Assets Pledgedas Collateral PledgedFinancialInstrumentsNotSeparatelyReportedTradeAssetsPledgedasCollateral	4000000000	USD
CY2019Q1	bk	Pledged Assets Not Separately Reported Other Assets Pledged As Collateral PledgedAssetsNotSeparatelyReportedOtherAssetsPledgedAsCollateral	1000000000	USD
CY2018Q4	us-gaap	Pledged Assets Not Separately Reported On Statement Of Financial Position PledgedAssetsNotSeparatelyReportedOnStatementOfFinancialPosition	120000000000	USD
CY2018Q4	bk	Pledged Assets Other Not Separately Reportedon Statementof Financial Position Potential Borrowingsatthe Federal Reserve Discount Window PledgedAssetsOtherNotSeparatelyReportedonStatementofFinancialPositionPotentialBorrowingsattheFederalReserveDiscountWindow	96000000000	USD
CY2018Q4	bk	Pledged Asset Other Not Separately Reportedon Statementof Financial Position Potential Borrowingsatthe Federal Home Loan Bank PledgedAssetOtherNotSeparatelyReportedonStatementofFinancialPositionPotentialBorrowingsattheFederalHomeLoanBank	7000000000	USD
CY2018Q4	us-gaap	Pledged Financial Instruments Not Separately Reported Securities Pledged PledgedFinancialInstrumentsNotSeparatelyReportedSecuritiesPledged	100000000000	USD
CY2018Q4	us-gaap	Pledged Financial Instruments Not Separately Reported Loans Receivable Pledged As Collateral PledgedFinancialInstrumentsNotSeparatelyReportedLoansReceivablePledgedAsCollateral	15000000000	USD
CY2018Q4	bk	Pledged Financial Instruments Not Separately Reported Trade Assets Pledgedas Collateral PledgedFinancialInstrumentsNotSeparatelyReportedTradeAssetsPledgedasCollateral	4000000000	USD
CY2018Q4	bk	Pledged Assets Not Separately Reported Other Assets Pledged As Collateral PledgedAssetsNotSeparatelyReportedOtherAssetsPledgedAsCollateral	1000000000	USD
CY2019Q1	us-gaap	Financial Instruments Owned And Pledged As Collateral Amount Eligible To Be Repledged By Counterparty FinancialInstrumentsOwnedAndPledgedAsCollateralAmountEligibleToBeRepledgedByCounterparty	17000000000	USD
CY2018Q4	us-gaap	Financial Instruments Owned And Pledged As Collateral Amount Eligible To Be Repledged By Counterparty FinancialInstrumentsOwnedAndPledgedAsCollateralAmountEligibleToBeRepledgedByCounterparty	13000000000	USD
CY2019Q1	us-gaap	Customer Securities For Which Entity Has Right To Sell Or Repledge Fair Value CustomerSecuritiesForWhichEntityHasRightToSellOrRepledgeFairValue	113000000000	USD
CY2018Q4	us-gaap	Customer Securities For Which Entity Has Right To Sell Or Repledge Fair Value CustomerSecuritiesForWhichEntityHasRightToSellOrRepledgeFairValue	151000000000	USD
CY2019Q1	us-gaap	Fair Value Of Securities Received As Collateral That Have Been Resold Or Repledged FairValueOfSecuritiesReceivedAsCollateralThatHaveBeenResoldOrRepledged	68000000000	USD
CY2018Q4	us-gaap	Fair Value Of Securities Received As Collateral That Have Been Resold Or Repledged FairValueOfSecuritiesReceivedAsCollateralThatHaveBeenResoldOrRepledged	101000000000	USD
CY2019Q1	us-gaap	Restricted Cash RestrictedCash	2000000000	USD
CY2018Q4	us-gaap	Restricted Cash RestrictedCash	2000000000	USD
CY2019Q1	us-gaap	Securities Segregated Under Other Regulations SecuritiesSegregatedUnderOtherRegulations	2000000000	USD
CY2018Q4	us-gaap	Securities Segregated Under Other Regulations SecuritiesSegregatedUnderOtherRegulations	2000000000	USD
CY2019Q1	us-gaap	Loans And Leases Receivable Net Of Deferred Income LoansAndLeasesReceivableNetOfDeferredIncome	53487000000	USD
CY2018Q4	us-gaap	Loans And Leases Receivable Net Of Deferred Income LoansAndLeasesReceivableNetOfDeferredIncome	56564000000	USD
CY2019Q1	us-gaap	Loans And Leases Receivable Deferred Income LoansAndLeasesReceivableDeferredIncome	351000000	USD
CY2018Q4	us-gaap	Loans And Leases Receivable Deferred Income LoansAndLeasesReceivableDeferredIncome	358000000	USD
CY2019Q1	bk	Numberof Portfolio Segments NumberofPortfolioSegments	3	segment
CY2019Q1	bk	Numberof Classesof Financing Receivable NumberofClassesofFinancingReceivable	6	class_of_receivable
CY2018Q4	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	252000000	USD
CY2019Q1	us-gaap	Financing Receivable Allowance For Credit Losses Write Offs FinancingReceivableAllowanceForCreditLossesWriteOffs	11000000	USD
CY2019Q1	us-gaap	Financing Receivable Allowance For Credit Losses Recovery FinancingReceivableAllowanceForCreditLossesRecovery	0	USD
CY2019Q1	bk	Financing Receivable Allowance For Credit Losses Net Charge Offs FinancingReceivableAllowanceForCreditLossesNetChargeOffs	11000000	USD
CY2019Q1	us-gaap	Provision For Loan Lease And Other Losses ProvisionForLoanLeaseAndOtherLosses	7000000	USD
CY2019Q1	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	248000000	USD
CY2019Q1	us-gaap	Loans And Leases Receivable Allowance LoansAndLeasesReceivableAllowance	146000000	USD
CY2019Q1	bk	Financing Receivable Allowance For Credit Losses Unfunded Commitments FinancingReceivableAllowanceForCreditLossesUnfundedCommitments	102000000	USD
CY2019Q1	us-gaap	Financing Receivable Individually Evaluated For Impairment FinancingReceivableIndividuallyEvaluatedForImpairment	100000000	USD
CY2019Q1	us-gaap	Financing Receivable Allowance For Credit Losses Individually Evaluated For Impairment1 FinancingReceivableAllowanceForCreditLossesIndividuallyEvaluatedForImpairment1	10000000	USD
CY2019Q1	us-gaap	Financing Receivable Collectively Evaluated For Impairment FinancingReceivableCollectivelyEvaluatedForImpairment	53387000000	USD
CY2019Q1	us-gaap	Financing Receivable Allowance For Credit Losses Collectively Evaluated For Impairment FinancingReceivableAllowanceForCreditLossesCollectivelyEvaluatedForImpairment	136000000	USD
CY2018Q3	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	251000000	USD
CY2018Q4	us-gaap	Financing Receivable Allowance For Credit Losses Write Offs FinancingReceivableAllowanceForCreditLossesWriteOffs	0	USD
CY2018Q4	us-gaap	Financing Receivable Allowance For Credit Losses Recovery FinancingReceivableAllowanceForCreditLossesRecovery	1000000	USD
CY2018Q4	bk	Financing Receivable Allowance For Credit Losses Net Charge Offs FinancingReceivableAllowanceForCreditLossesNetChargeOffs	-1000000	USD
CY2018Q4	us-gaap	Provision For Loan Lease And Other Losses ProvisionForLoanLeaseAndOtherLosses	0	USD
CY2018Q4	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	252000000	USD
CY2018Q4	us-gaap	Loans And Leases Receivable Allowance LoansAndLeasesReceivableAllowance	146000000	USD
CY2018Q4	bk	Financing Receivable Allowance For Credit Losses Unfunded Commitments FinancingReceivableAllowanceForCreditLossesUnfundedCommitments	106000000	USD
CY2018Q4	us-gaap	Financing Receivable Individually Evaluated For Impairment FinancingReceivableIndividuallyEvaluatedForImpairment	4000000	USD
CY2018Q4	us-gaap	Financing Receivable Allowance For Credit Losses Individually Evaluated For Impairment1 FinancingReceivableAllowanceForCreditLossesIndividuallyEvaluatedForImpairment1	0	USD
CY2018Q4	us-gaap	Financing Receivable Collectively Evaluated For Impairment FinancingReceivableCollectivelyEvaluatedForImpairment	56560000000	USD
CY2018Q4	us-gaap	Financing Receivable Allowance For Credit Losses Collectively Evaluated For Impairment FinancingReceivableAllowanceForCreditLossesCollectivelyEvaluatedForImpairment	146000000	USD
CY2017Q4	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	261000000	USD
CY2018Q1	us-gaap	Financing Receivable Allowance For Credit Losses Write Offs FinancingReceivableAllowanceForCreditLossesWriteOffs	0	USD
CY2018Q1	us-gaap	Financing Receivable Allowance For Credit Losses Recovery FinancingReceivableAllowanceForCreditLossesRecovery	0	USD
CY2018Q1	bk	Financing Receivable Allowance For Credit Losses Net Charge Offs FinancingReceivableAllowanceForCreditLossesNetChargeOffs	0	USD
CY2018Q1	us-gaap	Provision For Loan Lease And Other Losses ProvisionForLoanLeaseAndOtherLosses	-5000000	USD
CY2018Q1	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	256000000	USD
CY2018Q1	us-gaap	Loans And Leases Receivable Allowance LoansAndLeasesReceivableAllowance	156000000	USD
CY2018Q1	bk	Financing Receivable Allowance For Credit Losses Unfunded Commitments FinancingReceivableAllowanceForCreditLossesUnfundedCommitments	100000000	USD
CY2018Q1	us-gaap	Financing Receivable Individually Evaluated For Impairment FinancingReceivableIndividuallyEvaluatedForImpairment	5000000	USD
CY2018Q1	us-gaap	Financing Receivable Allowance For Credit Losses Individually Evaluated For Impairment1 FinancingReceivableAllowanceForCreditLossesIndividuallyEvaluatedForImpairment1	1000000	USD
CY2018Q1	us-gaap	Financing Receivable Collectively Evaluated For Impairment FinancingReceivableCollectivelyEvaluatedForImpairment	60804000000	USD
CY2018Q1	us-gaap	Financing Receivable Allowance For Credit Losses Collectively Evaluated For Impairment FinancingReceivableAllowanceForCreditLossesCollectivelyEvaluatedForImpairment	155000000	USD
CY2019Q1	us-gaap	Loans And Leases Receivable Impaired Interest Lost On Nonaccrual Loans LoansAndLeasesReceivableImpairedInterestLostOnNonaccrualLoans	2000000	USD
CY2018Q4	us-gaap	Loans And Leases Receivable Impaired Interest Lost On Nonaccrual Loans LoansAndLeasesReceivableImpairedInterestLostOnNonaccrualLoans	2000000	USD
CY2018Q1	us-gaap	Loans And Leases Receivable Impaired Interest Lost On Nonaccrual Loans LoansAndLeasesReceivableImpairedInterestLostOnNonaccrualLoans	1000000	USD
CY2019Q1	us-gaap	Impaired Financing Receivable With Related Allowance Average Recorded Investment ImpairedFinancingReceivableWithRelatedAllowanceAverageRecordedInvestment	48000000	USD
CY2019Q1	us-gaap	Impaired Financing Receivable With Related Allowance Interest Income Accrual Method ImpairedFinancingReceivableWithRelatedAllowanceInterestIncomeAccrualMethod	0	USD
CY2018Q4	us-gaap	Impaired Financing Receivable With Related Allowance Average Recorded Investment ImpairedFinancingReceivableWithRelatedAllowanceAverageRecordedInvestment	0	USD
CY2018Q4	us-gaap	Impaired Financing Receivable With Related Allowance Interest Income Accrual Method ImpairedFinancingReceivableWithRelatedAllowanceInterestIncomeAccrualMethod	0	USD
CY2018Q1	us-gaap	Impaired Financing Receivable With Related Allowance Average Recorded Investment ImpairedFinancingReceivableWithRelatedAllowanceAverageRecordedInvestment	2000000	USD
CY2018Q1	us-gaap	Impaired Financing Receivable With Related Allowance Interest Income Accrual Method ImpairedFinancingReceivableWithRelatedAllowanceInterestIncomeAccrualMethod	0	USD
CY2019Q1	us-gaap	Impaired Financing Receivable Average Recorded Investment ImpairedFinancingReceivableAverageRecordedInvestment	52000000	USD
CY2019Q1	us-gaap	Impaired Financing Receivable Interest Income Accrual Method ImpairedFinancingReceivableInterestIncomeAccrualMethod	0	USD
CY2018Q4	us-gaap	Impaired Financing Receivable Average Recorded Investment ImpairedFinancingReceivableAverageRecordedInvestment	4000000	USD
CY2018Q4	us-gaap	Impaired Financing Receivable Interest Income Accrual Method ImpairedFinancingReceivableInterestIncomeAccrualMethod	0	USD
CY2018Q1	us-gaap	Impaired Financing Receivable Average Recorded Investment ImpairedFinancingReceivableAverageRecordedInvestment	6000000	USD
CY2018Q1	us-gaap	Impaired Financing Receivable Interest Income Accrual Method ImpairedFinancingReceivableInterestIncomeAccrualMethod	0	USD
CY2019Q1	us-gaap	Impaired Financing Receivable Recorded Investment ImpairedFinancingReceivableRecordedInvestment	100000000	USD
CY2019Q1	us-gaap	Impaired Financing Receivable Unpaid Principal Balance ImpairedFinancingReceivableUnpaidPrincipalBalance	100000000	USD
CY2019Q1	us-gaap	Impaired Financing Receivable Related Allowance ImpairedFinancingReceivableRelatedAllowance	10000000	USD
CY2018Q4	us-gaap	Impaired Financing Receivable Recorded Investment ImpairedFinancingReceivableRecordedInvestment	4000000	USD
CY2018Q4	us-gaap	Impaired Financing Receivable Unpaid Principal Balance ImpairedFinancingReceivableUnpaidPrincipalBalance	4000000	USD
CY2018Q4	us-gaap	Impaired Financing Receivable Related Allowance ImpairedFinancingReceivableRelatedAllowance	0	USD
CY2019Q1	us-gaap	Financing Receivable Recorded Investment Past Due FinancingReceivableRecordedInvestmentPastDue	86000000	USD
CY2018Q4	us-gaap	Financing Receivable Recorded Investment Past Due FinancingReceivableRecordedInvestmentPastDue	60000000	USD
CY2019Q1	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	1221000000	USD
CY2019Q1	us-gaap	Finance Lease Right Of Use Asset FinanceLeaseRightOfUseAsset	21000000	USD
CY2019Q1	bk	Rightof Use Asset RightofUseAsset	1242000000	USD
CY2019Q1	us-gaap	Operating Lease Liability OperatingLeaseLiability	1370000000	USD
CY2019Q1	us-gaap	Finance Lease Liability FinanceLeaseLiability	14000000	USD
CY2019Q1	bk	Lease Liability LeaseLiability	1384000000	USD
CY2019Q1	us-gaap	Operating Lease Weighted Average Remaining Lease Term1 OperatingLeaseWeightedAverageRemainingLeaseTerm1	P8Y3M18D
CY2019Q1	us-gaap	Finance Lease Weighted Average Remaining Lease Term1 FinanceLeaseWeightedAverageRemainingLeaseTerm1	P3Y4M24D
CY2019Q1	us-gaap	Operating Lease Weighted Average Discount Rate Percent OperatingLeaseWeightedAverageDiscountRatePercent	0.0315
CY2019Q1	us-gaap	Finance Lease Weighted Average Discount Rate Percent FinanceLeaseWeightedAverageDiscountRatePercent	0.0277
CY2019Q1	us-gaap	Operating Lease Cost OperatingLeaseCost	69000000	USD
CY2019Q1	us-gaap	Variable Lease Cost VariableLeaseCost	9000000	USD
CY2019Q1	us-gaap	Sublease Income SubleaseIncome	8000000	USD
CY2019Q1	us-gaap	Finance Lease Right Of Use Asset Amortization FinanceLeaseRightOfUseAssetAmortization	2000000	USD
CY2019Q1	us-gaap	Finance Lease Interest Expense FinanceLeaseInterestExpense	0	USD
CY2019Q1	bk	Finance Lease Cost Total FinanceLeaseCostTotal	2000000	USD
CY2019Q1	us-gaap	Lease Cost LeaseCost	72000000	USD
CY2019Q1	us-gaap	Finance Lease Interest Payment On Liability FinanceLeaseInterestPaymentOnLiability	0	USD
CY2019Q1	us-gaap	Operating Lease Payments OperatingLeasePayments	78000000	USD
CY2019Q1	us-gaap	Finance Lease Principal Payments FinanceLeasePrincipalPayments	7000000	USD
CY2018Q4	us-gaap	Operating Leases Future Minimum Payments Remainder Of Fiscal Year OperatingLeasesFutureMinimumPaymentsRemainderOfFiscalYear	264000000	USD
CY2018Q4	us-gaap	Operating Leases Future Minimum Payments Due In Two Years OperatingLeasesFutureMinimumPaymentsDueInTwoYears	244000000	USD
CY2018Q4	us-gaap	Operating Leases Future Minimum Payments Due In Three Years OperatingLeasesFutureMinimumPaymentsDueInThreeYears	211000000	USD
CY2018Q4	us-gaap	Operating Leases Future Minimum Payments Due In Four Years OperatingLeasesFutureMinimumPaymentsDueInFourYears	172000000	USD
CY2018Q4	us-gaap	Operating Leases Future Minimum Payments Due In Five Years OperatingLeasesFutureMinimumPaymentsDueInFiveYears	136000000	USD
CY2018Q4	us-gaap	Operating Leases Future Minimum Payments Due Thereafter OperatingLeasesFutureMinimumPaymentsDueThereafter	432000000	USD
CY2018Q4	us-gaap	Operating Leases Future Minimum Payments Due OperatingLeasesFutureMinimumPaymentsDue	1459000000	USD
CY2019Q1	us-gaap	Lessee Operating Lease Liability Payments Remainder Of Fiscal Year LesseeOperatingLeaseLiabilityPaymentsRemainderOfFiscalYear	211000000	USD
CY2019Q1	us-gaap	Finance Lease Liability Payments Remainder Of Fiscal Year FinanceLeaseLiabilityPaymentsRemainderOfFiscalYear	13000000	USD
CY2019Q1	us-gaap	Lessee Operating Lease Liability Payments Due Year Two LesseeOperatingLeaseLiabilityPaymentsDueYearTwo	267000000	USD
CY2019Q1	us-gaap	Finance Lease Liability Payments Due Year Two FinanceLeaseLiabilityPaymentsDueYearTwo	1000000	USD
CY2019Q1	us-gaap	Lessee Operating Lease Liability Payments Due Year Three LesseeOperatingLeaseLiabilityPaymentsDueYearThree	210000000	USD
CY2019Q1	us-gaap	Finance Lease Liability Payments Due Year Three FinanceLeaseLiabilityPaymentsDueYearThree	0	USD
CY2019Q1	us-gaap	Lessee Operating Lease Liability Payments Due Year Four LesseeOperatingLeaseLiabilityPaymentsDueYearFour	172000000	USD
CY2019Q1	us-gaap	Finance Lease Liability Payments Due Year Four FinanceLeaseLiabilityPaymentsDueYearFour	0	USD
CY2019Q1	us-gaap	Lessee Operating Lease Liability Payments Due Year Five LesseeOperatingLeaseLiabilityPaymentsDueYearFive	133000000	USD
CY2019Q1	us-gaap	Finance Lease Liability Payments Due Year Five FinanceLeaseLiabilityPaymentsDueYearFive	0	USD
CY2019Q1	us-gaap	Lessee Operating Lease Liability Payments Due After Year Five LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive	579000000	USD
CY2019Q1	us-gaap	Finance Lease Liability Payments Due After Year Five FinanceLeaseLiabilityPaymentsDueAfterYearFive	0	USD
CY2019Q1	us-gaap	Lessee Operating Lease Liability Payments Due LesseeOperatingLeaseLiabilityPaymentsDue	1572000000	USD
CY2019Q1	us-gaap	Finance Lease Liability Payments Due FinanceLeaseLiabilityPaymentsDue	14000000	USD
CY2019Q1	us-gaap	Lessee Operating Lease Liability Undiscounted Excess Amount LesseeOperatingLeaseLiabilityUndiscountedExcessAmount	202000000	USD
CY2019Q1	us-gaap	Finance Lease Liability Undiscounted Excess Amount FinanceLeaseLiabilityUndiscountedExcessAmount	0	USD
CY2019Q1	us-gaap	Operating Lease Liability OperatingLeaseLiability	1370000000	USD
CY2019Q1	us-gaap	Finance Lease Liability FinanceLeaseLiability	14000000	USD
CY2018Q4	us-gaap	Goodwill Goodwill	17350000000	USD
CY2019Q1	us-gaap	Goodwill Foreign Currency Translation Gain Loss GoodwillForeignCurrencyTranslationGainLoss	17000000	USD
CY2019Q1	us-gaap	Goodwill Goodwill	17367000000	USD
CY2017Q4	us-gaap	Goodwill Goodwill	17564000000	USD
CY2018Q1	us-gaap	Goodwill Written Off Related To Sale Of Business Unit GoodwillWrittenOffRelatedToSaleOfBusinessUnit	52000000	USD
CY2018Q1	us-gaap	Intangible Assets Net Excluding Goodwill IntangibleAssetsNetExcludingGoodwill	3370000000	USD
CY2018Q1	us-gaap	Goodwill Foreign Currency Translation Gain Loss GoodwillForeignCurrencyTranslationGainLoss	84000000	USD
CY2018Q1	us-gaap	Goodwill Goodwill	17596000000	USD
CY2018Q4	us-gaap	Intangible Assets Net Excluding Goodwill IntangibleAssetsNetExcludingGoodwill	3220000000	USD
CY2019Q1	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	29000000	USD
CY2019Q1	bk	Intangible Assets Foreign Currency Translation Gain Loss IntangibleAssetsForeignCurrencyTranslationGainLoss	2000000	USD
CY2019Q1	us-gaap	Intangible Assets Net Excluding Goodwill IntangibleAssetsNetExcludingGoodwill	3193000000	USD
CY2017Q4	us-gaap	Intangible Assets Net Excluding Goodwill IntangibleAssetsNetExcludingGoodwill	3411000000	USD
CY2018Q1	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	49000000	USD
CY2018Q1	bk	Intangible Assets Foreign Currency Translation Gain Loss IntangibleAssetsForeignCurrencyTranslationGainLoss	8000000	USD
CY2019Q1	us-gaap	Intangible Assets Gross Excluding Goodwill IntangibleAssetsGrossExcludingGoodwill	5123000000	USD
CY2019Q1	us-gaap	Finite Lived Intangible Assets Accumulated Amortization FiniteLivedIntangibleAssetsAccumulatedAmortization	1930000000	USD
CY2019Q1	us-gaap	Intangible Assets Net Excluding Goodwill IntangibleAssetsNetExcludingGoodwill	3193000000	USD
CY2018Q4	us-gaap	Intangible Assets Gross Excluding Goodwill IntangibleAssetsGrossExcludingGoodwill	5117000000	USD
CY2018Q4	us-gaap	Finite Lived Intangible Assets Accumulated Amortization FiniteLivedIntangibleAssetsAccumulatedAmortization	1897000000	USD
CY2018Q4	us-gaap	Intangible Assets Net Excluding Goodwill IntangibleAssetsNetExcludingGoodwill	3220000000	USD
CY2019Q1	us-gaap	Finite Lived Intangible Assets Amortization Expense Next Twelve Months FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths	117000000	USD
CY2019Q1	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Two FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo	104000000	USD
CY2019Q1	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Three FiniteLivedIntangibleAssetsAmortizationExpenseYearThree	81000000	USD
CY2019Q1	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Four FiniteLivedIntangibleAssetsAmortizationExpenseYearFour	63000000	USD
CY2019Q1	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Five FiniteLivedIntangibleAssetsAmortizationExpenseYearFive	52000000	USD
CY2019Q1	us-gaap	Accounts Receivable Net AccountsReceivableNet	5282000000	USD
CY2018Q4	us-gaap	Accounts Receivable Net AccountsReceivableNet	3692000000	USD
CY2019Q1	us-gaap	Life Insurance Corporate Or Bank Owned Amount LifeInsuranceCorporateOrBankOwnedAmount	4960000000	USD
CY2018Q4	us-gaap	Life Insurance Corporate Or Bank Owned Amount LifeInsuranceCorporateOrBankOwnedAmount	4937000000	USD
CY2019Q1	us-gaap	Receivables From Brokers Dealers And Clearing Organizations ReceivablesFromBrokersDealersAndClearingOrganizations	2776000000	USD
CY2018Q4	us-gaap	Receivables From Brokers Dealers And Clearing Organizations ReceivablesFromBrokersDealersAndClearingOrganizations	2274000000	USD
CY2019Q1	us-gaap	Capitalized Computer Software Net CapitalizedComputerSoftwareNet	1672000000	USD
CY2018Q4	us-gaap	Capitalized Computer Software Net CapitalizedComputerSoftwareNet	1652000000	USD
CY2019Q1	bk	Defined Benefit Plan Prepaid Benefit Cost DefinedBenefitPlanPrepaidBenefitCost	1407000000	USD
CY2018Q4	bk	Defined Benefit Plan Prepaid Benefit Cost DefinedBenefitPlanPrepaidBenefitCost	1357000000	USD
CY2019Q1	bk	Renewable Energy Investments RenewableEnergyInvestments	1236000000	USD
CY2018Q4	bk	Renewable Energy Investments RenewableEnergyInvestments	1264000000	USD
CY2019Q1	bk	Equity In Joint Ventures And Other Investments EquityInJointVenturesAndOtherInvestments	1117000000	USD
CY2018Q4	bk	Equity In Joint Ventures And Other Investments EquityInJointVenturesAndOtherInvestments	1064000000	USD
CY2019Q1	us-gaap	Amortization Method Qualified Affordable Housing Project Investments AmortizationMethodQualifiedAffordableHousingProjectInvestments	987000000	USD
CY2018Q4	us-gaap	Amortization Method Qualified Affordable Housing Project Investments AmortizationMethodQualifiedAffordableHousingProjectInvestments	999000000	USD
CY2019Q1	us-gaap	Income Tax Receivable IncomeTaxReceivable	933000000	USD
CY2018Q4	us-gaap	Income Tax Receivable IncomeTaxReceivable	1125000000	USD
CY2019Q1	us-gaap	Prepaid Expense Current And Noncurrent PrepaidExpenseCurrentAndNoncurrent	462000000	USD
CY2018Q4	us-gaap	Prepaid Expense Current And Noncurrent PrepaidExpenseCurrentAndNoncurrent	385000000	USD
CY2019Q1	us-gaap	Federal Reserve Bank Stock FederalReserveBankStock	460000000	USD
CY2018Q4	us-gaap	Federal Reserve Bank Stock FederalReserveBankStock	484000000	USD
CY2019Q1	bk	Seed Capital SeedCapital	243000000	USD
CY2018Q4	bk	Seed Capital SeedCapital	224000000	USD
CY2019Q1	us-gaap	Derivative Instruments In Hedges Assets At Fair Value DerivativeInstrumentsInHedgesAssetsAtFairValue	166000000	USD
CY2018Q4	us-gaap	Derivative Instruments In Hedges Assets At Fair Value DerivativeInstrumentsInHedgesAssetsAtFairValue	289000000	USD
CY2019Q1	us-gaap	Other Assets Miscellaneous OtherAssetsMiscellaneous	1527000000	USD
CY2018Q4	us-gaap	Other Assets Miscellaneous OtherAssetsMiscellaneous	1552000000	USD
CY2019Q1	us-gaap	Other Assets OtherAssets	23228000000	USD
CY2018Q4	us-gaap	Other Assets OtherAssets	21298000000	USD
CY2019Q1	us-gaap	Federal Home Loan Bank Stock FederalHomeLoanBankStock	146000000	USD
CY2018Q4	us-gaap	Federal Home Loan Bank Stock FederalHomeLoanBankStock	111000000	USD
CY2019Q1	us-gaap	Equity Securities Without Readily Determinable Fair Value Amount EquitySecuritiesWithoutReadilyDeterminableFairValueAmount	57000000	USD
CY2018Q4	us-gaap	Equity Securities Without Readily Determinable Fair Value Amount EquitySecuritiesWithoutReadilyDeterminableFairValueAmount	55000000	USD
CY2019Q1	us-gaap	Equity Securities Without Readily Determinable Fair Value Upward Price Adjustment Annual Amount EquitySecuritiesWithoutReadilyDeterminableFairValueUpwardPriceAdjustmentAnnualAmount	0	USD
CY2018Q4	us-gaap	Equity Securities Without Readily Determinable Fair Value Upward Price Adjustment Annual Amount EquitySecuritiesWithoutReadilyDeterminableFairValueUpwardPriceAdjustmentAnnualAmount	0	USD
CY2018Q1	us-gaap	Equity Securities Without Readily Determinable Fair Value Upward Price Adjustment Annual Amount EquitySecuritiesWithoutReadilyDeterminableFairValueUpwardPriceAdjustmentAnnualAmount	20000000	USD
CY2019Q1	us-gaap	Equity Securities Without Readily Determinable Fair Value Upward Price Adjustment Cumulative Amount EquitySecuritiesWithoutReadilyDeterminableFairValueUpwardPriceAdjustmentCumulativeAmount	28000000	USD
CY2019Q1	us-gaap	Equity Securities Without Readily Determinable Fair Value Downward Price Adjustment Annual Amount EquitySecuritiesWithoutReadilyDeterminableFairValueDownwardPriceAdjustmentAnnualAmount	0	USD
CY2018Q4	us-gaap	Equity Securities Without Readily Determinable Fair Value Downward Price Adjustment Annual Amount EquitySecuritiesWithoutReadilyDeterminableFairValueDownwardPriceAdjustmentAnnualAmount	0	USD
CY2018Q1	us-gaap	Equity Securities Without Readily Determinable Fair Value Downward Price Adjustment Annual Amount EquitySecuritiesWithoutReadilyDeterminableFairValueDownwardPriceAdjustmentAnnualAmount	0	USD
CY2019Q1	us-gaap	Equity Securities Without Readily Determinable Fair Value Downward Price Adjustment Cumulative Amount EquitySecuritiesWithoutReadilyDeterminableFairValueDownwardPriceAdjustmentCumulativeAmount	1000000	USD
CY2019Q1	bk	Equity Securitieswithout Readily Determinable Fair Value Net Adjustment Annual Amount EquitySecuritieswithoutReadilyDeterminableFairValueNetAdjustmentAnnualAmount	0	USD
CY2018Q4	bk	Equity Securitieswithout Readily Determinable Fair Value Net Adjustment Annual Amount EquitySecuritieswithoutReadilyDeterminableFairValueNetAdjustmentAnnualAmount	0	USD
CY2018Q1	bk	Equity Securitieswithout Readily Determinable Fair Value Net Adjustment Annual Amount EquitySecuritieswithoutReadilyDeterminableFairValueNetAdjustmentAnnualAmount	20000000	USD
CY2019Q1	bk	Equity Securitieswithout Readily Determinable Fair Value Net Adjustment Cumulative Amount EquitySecuritieswithoutReadilyDeterminableFairValueNetAdjustmentCumulativeAmount	27000000	USD
CY2019Q1	us-gaap	Amortization Method Qualified Affordable Housing Project Investments AmortizationMethodQualifiedAffordableHousingProjectInvestments	1000000000.0	USD
CY2018Q4	us-gaap	Amortization Method Qualified Affordable Housing Project Investments AmortizationMethodQualifiedAffordableHousingProjectInvestments	1000000000.0	USD
CY2019Q1	us-gaap	Qualified Affordable Housing Project Investments Commitment QualifiedAffordableHousingProjectInvestmentsCommitment	450000000	USD
CY2018Q4	us-gaap	Qualified Affordable Housing Project Investments Commitment QualifiedAffordableHousingProjectInvestmentsCommitment	479000000	USD
CY2019Q1	bk	Qualified Affordable Housing Project Investments Commitment Next Twelve Months QualifiedAffordableHousingProjectInvestmentsCommitmentNextTwelveMonths	146000000	USD
CY2019Q1	bk	Qualified Affordable Housing Project Investments Commitmentin Two Years QualifiedAffordableHousingProjectInvestmentsCommitmentinTwoYears	117000000	USD
CY2019Q1	bk	Qualified Affordable Housing Project Investments Commitmentin Three Years QualifiedAffordableHousingProjectInvestmentsCommitmentinThreeYears	131000000	USD
CY2019Q1	bk	Qualified Affordable Housing Project Investments Commitmentin Four Years QualifiedAffordableHousingProjectInvestmentsCommitmentinFourYears	29000000	USD
CY2019Q1	bk	Qualified Affordable Housing Project Investments Commitmentin Five Years QualifiedAffordableHousingProjectInvestmentsCommitmentinFiveYears	1000000	USD
CY2019Q1	bk	Qualified Affordable Housing Project Investments Commitment Thereafter QualifiedAffordableHousingProjectInvestmentsCommitmentThereafter	26000000	USD
CY2019Q1	us-gaap	Affordable Housing Tax Credits And Other Tax Benefits Amount AffordableHousingTaxCreditsAndOtherTaxBenefitsAmount	39000000	USD
CY2018Q1	us-gaap	Affordable Housing Tax Credits And Other Tax Benefits Amount AffordableHousingTaxCreditsAndOtherTaxBenefitsAmount	40000000	USD
CY2018Q4	us-gaap	Affordable Housing Tax Credits And Other Tax Benefits Amount AffordableHousingTaxCreditsAndOtherTaxBenefitsAmount	41000000	USD
CY2019Q1	us-gaap	Amortization Method Qualified Affordable Housing Project Investments Amortization AmortizationMethodQualifiedAffordableHousingProjectInvestmentsAmortization	32000000	USD
CY2018Q1	us-gaap	Amortization Method Qualified Affordable Housing Project Investments Amortization AmortizationMethodQualifiedAffordableHousingProjectInvestmentsAmortization	33000000	USD
CY2018Q4	us-gaap	Amortization Method Qualified Affordable Housing Project Investments Amortization AmortizationMethodQualifiedAffordableHousingProjectInvestmentsAmortization	34000000	USD
CY2019Q1	us-gaap	Contract With Customer Asset Net ContractWithCustomerAssetNet	2500000000	USD
CY2018Q4	us-gaap	Contract With Customer Asset Net ContractWithCustomerAssetNet	2500000000	USD
CY2019Q1	us-gaap	Provision For Doubtful Accounts ProvisionForDoubtfulAccounts	4000000	USD
CY2018Q1	us-gaap	Provision For Doubtful Accounts ProvisionForDoubtfulAccounts	2000000	USD
CY2018Q4	us-gaap	Provision For Doubtful Accounts ProvisionForDoubtfulAccounts	3000000	USD
CY2019Q1	us-gaap	Contract With Customer Asset Net Current ContractWithCustomerAssetNetCurrent	51000000	USD
CY2018Q4	us-gaap	Contract With Customer Asset Net Current ContractWithCustomerAssetNetCurrent	36000000	USD
CY2019Q1	us-gaap	Contract With Customer Asset Credit Loss Expense ContractWithCustomerAssetCreditLossExpense	0	USD
CY2019Q1	us-gaap	Contract With Customer Liability ContractWithCustomerLiability	191000000	USD
CY2018Q4	us-gaap	Contract With Customer Liability ContractWithCustomerLiability	171000000	USD
CY2019Q1	us-gaap	Contract With Customer Liability Revenue Recognized ContractWithCustomerLiabilityRevenueRecognized	49000000	USD
CY2019Q1	us-gaap	Capitalized Contract Cost Impairment Loss CapitalizedContractCostImpairmentLoss	0	USD
CY2019Q1	us-gaap	Interest Income Deposits With Financial Institutions InterestIncomeDepositsWithFinancialInstitutions	63000000	USD
CY2018Q4	us-gaap	Interest Income Deposits With Financial Institutions InterestIncomeDepositsWithFinancialInstitutions	62000000	USD
CY2018Q1	us-gaap	Interest Income Deposits With Financial Institutions InterestIncomeDepositsWithFinancialInstitutions	42000000	USD
CY2019Q1	bk	Interest Income Deposits With Federal Reserve And Other Central Banks InterestIncomeDepositsWithFederalReserveAndOtherCentralBanks	139000000	USD
CY2018Q4	bk	Interest Income Deposits With Federal Reserve And Other Central Banks InterestIncomeDepositsWithFederalReserveAndOtherCentralBanks	144000000	USD
CY2018Q1	bk	Interest Income Deposits With Federal Reserve And Other Central Banks InterestIncomeDepositsWithFederalReserveAndOtherCentralBanks	126000000	USD
CY2019Q1	us-gaap	Interest Income Federal Funds Sold And Securities Purchased Under Agreements To Resell InterestIncomeFederalFundsSoldAndSecuritiesPurchasedUnderAgreementsToResell	474000000	USD
CY2018Q4	us-gaap	Interest Income Federal Funds Sold And Securities Purchased Under Agreements To Resell InterestIncomeFederalFundsSoldAndSecuritiesPurchasedUnderAgreementsToResell	435000000	USD
CY2018Q1	us-gaap	Interest Income Federal Funds Sold And Securities Purchased Under Agreements To Resell InterestIncomeFederalFundsSoldAndSecuritiesPurchasedUnderAgreementsToResell	170000000	USD
CY2019Q1	bk	Interest And Fee Income On Margin Loans InterestAndFeeIncomeOnMarginLoans	135000000	USD
CY2018Q4	bk	Interest And Fee Income On Margin Loans InterestAndFeeIncomeOnMarginLoans	138000000	USD
CY2018Q1	bk	Interest And Fee Income On Margin Loans InterestAndFeeIncomeOnMarginLoans	115000000	USD
CY2019Q1	us-gaap	Interest And Fee Income Loans And Leases InterestAndFeeIncomeLoansAndLeases	355000000	USD
CY2018Q4	us-gaap	Interest And Fee Income Loans And Leases InterestAndFeeIncomeLoansAndLeases	362000000	USD
CY2018Q1	us-gaap	Interest And Fee Income Loans And Leases InterestAndFeeIncomeLoansAndLeases	305000000	USD
CY2019Q1	us-gaap	Interest Income Securities Taxable InterestIncomeSecuritiesTaxable	706000000	USD
CY2018Q4	us-gaap	Interest Income Securities Taxable InterestIncomeSecuritiesTaxable	674000000	USD
CY2018Q1	us-gaap	Interest Income Securities Taxable InterestIncomeSecuritiesTaxable	581000000	USD
CY2018Q4	us-gaap	Provision For Loan Lease And Other Losses ProvisionForLoanLeaseAndOtherLosses	0	USD
CY2018Q1	us-gaap	Provision For Loan Lease And Other Losses ProvisionForLoanLeaseAndOtherLosses	-5000000	USD
CY2019Q1	us-gaap	Interest Income Securities Tax Exempt InterestIncomeSecuritiesTaxExempt	12000000	USD
CY2018Q4	us-gaap	Interest Income Securities Tax Exempt InterestIncomeSecuritiesTaxExempt	11000000	USD
CY2018Q1	us-gaap	Interest Income Securities Tax Exempt InterestIncomeSecuritiesTaxExempt	15000000	USD
CY2019Q1	us-gaap	Interest And Dividend Income Securities InterestAndDividendIncomeSecurities	718000000	USD
CY2018Q4	us-gaap	Interest And Dividend Income Securities InterestAndDividendIncomeSecurities	685000000	USD
CY2018Q1	us-gaap	Interest And Dividend Income Securities InterestAndDividendIncomeSecurities	596000000	USD
CY2019Q1	us-gaap	Interest And Dividend Income Securities Trading Or Measured At Fair Value InterestAndDividendIncomeSecuritiesTradingOrMeasuredAtFairValue	36000000	USD
CY2018Q4	us-gaap	Interest And Dividend Income Securities Trading Or Measured At Fair Value InterestAndDividendIncomeSecuritiesTradingOrMeasuredAtFairValue	38000000	USD
CY2018Q1	us-gaap	Interest And Dividend Income Securities Trading Or Measured At Fair Value InterestAndDividendIncomeSecuritiesTradingOrMeasuredAtFairValue	27000000	USD
CY2019Q1	us-gaap	Interest And Dividend Income Operating InterestAndDividendIncomeOperating	1920000000	USD
CY2018Q4	us-gaap	Interest And Dividend Income Operating InterestAndDividendIncomeOperating	1864000000	USD
CY2018Q1	us-gaap	Interest And Dividend Income Operating InterestAndDividendIncomeOperating	1381000000	USD
CY2019Q1	us-gaap	Interest Expense Deposits InterestExpenseDeposits	391000000	USD
CY2018Q4	us-gaap	Interest Expense Deposits InterestExpenseDeposits	350000000	USD
CY2018Q1	us-gaap	Interest Expense Deposits InterestExpenseDeposits	117000000	USD
CY2019Q1	us-gaap	Interest Expense Federal Funds Purchased And Securities Sold Under Agreements To Repurchase InterestExpenseFederalFundsPurchasedAndSecuritiesSoldUnderAgreementsToRepurchase	331000000	USD
CY2018Q4	us-gaap	Interest Expense Federal Funds Purchased And Securities Sold Under Agreements To Repurchase InterestExpenseFederalFundsPurchasedAndSecuritiesSoldUnderAgreementsToRepurchase	303000000	USD
CY2018Q1	us-gaap	Interest Expense Federal Funds Purchased And Securities Sold Under Agreements To Repurchase InterestExpenseFederalFundsPurchasedAndSecuritiesSoldUnderAgreementsToRepurchase	107000000	USD
CY2019Q1	us-gaap	Interest Expense Trading Liabilities InterestExpenseTradingLiabilities	7000000	USD
CY2018Q4	us-gaap	Interest Expense Trading Liabilities InterestExpenseTradingLiabilities	6000000	USD
CY2018Q1	us-gaap	Interest Expense Trading Liabilities InterestExpenseTradingLiabilities	9000000	USD
CY2019Q1	us-gaap	Interest Expense Other Short Term Borrowings InterestExpenseOtherShortTermBorrowings	24000000	USD
CY2018Q4	us-gaap	Interest Expense Other Short Term Borrowings InterestExpenseOtherShortTermBorrowings	19000000	USD
CY2018Q1	us-gaap	Interest Expense Other Short Term Borrowings InterestExpenseOtherShortTermBorrowings	9000000	USD
CY2019Q1	us-gaap	Interest Expense Commercial Paper InterestExpenseCommercialPaper	8000000	USD
CY2018Q4	us-gaap	Interest Expense Commercial Paper InterestExpenseCommercialPaper	2000000	USD
CY2018Q1	us-gaap	Interest Expense Commercial Paper InterestExpenseCommercialPaper	12000000	USD
CY2019Q1	bk	Interest Expense Customer Payables InterestExpenseCustomerPayables	70000000	USD
CY2018Q4	bk	Interest Expense Customer Payables InterestExpenseCustomerPayables	64000000	USD
CY2018Q1	bk	Interest Expense Customer Payables InterestExpenseCustomerPayables	31000000	USD
CY2019Q1	us-gaap	Interest Expense Long Term Debt InterestExpenseLongTermDebt	248000000	USD
CY2018Q4	us-gaap	Interest Expense Long Term Debt InterestExpenseLongTermDebt	235000000	USD
CY2018Q1	us-gaap	Interest Expense Long Term Debt InterestExpenseLongTermDebt	177000000	USD
CY2019Q1	us-gaap	Interest Expense InterestExpense	1079000000	USD
CY2018Q4	us-gaap	Interest Expense InterestExpense	979000000	USD
CY2018Q1	us-gaap	Interest Expense InterestExpense	462000000	USD
CY2019Q1	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	841000000	USD
CY2018Q4	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	885000000	USD
CY2018Q1	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	919000000	USD
CY2019Q1	us-gaap	Provision For Loan Lease And Other Losses ProvisionForLoanLeaseAndOtherLosses	7000000	USD
CY2018Q4	us-gaap	Interest Income Expense After Provision For Loan Loss InterestIncomeExpenseAfterProvisionForLoanLoss	885000000	USD
CY2018Q1	us-gaap	Interest Income Expense After Provision For Loan Loss InterestIncomeExpenseAfterProvisionForLoanLoss	924000000	USD
CY2019Q1	us-gaap	Interest Income Expense After Provision For Loan Loss InterestIncomeExpenseAfterProvisionForLoanLoss	834000000	USD
CY2019Q1	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	237000000	USD
CY2019Q1	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.199
CY2018Q1	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	282000000	USD
CY2018Q1	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.195
CY2018Q4	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	150000000	USD
CY2018Q4	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.147
CY2019Q1	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	105000000	USD
CY2018Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	103000000	USD
CY2019Q1	us-gaap	Unrecognized Tax Benefits That Would Impact Effective Tax Rate UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate	105000000	USD
CY2019Q1	us-gaap	Unrecognized Tax Benefits Interest On Income Taxes Accrued UnrecognizedTaxBenefitsInterestOnIncomeTaxesAccrued	24000000	USD
CY2019Q1	us-gaap	Unrecognized Tax Benefits Interest On Income Taxes Expense UnrecognizedTaxBenefitsInterestOnIncomeTaxesExpense	2000000	USD
CY2018Q1	us-gaap	Unrecognized Tax Benefits Interest On Income Taxes Expense UnrecognizedTaxBenefitsInterestOnIncomeTaxesExpense	1000000	USD
CY2019Q1	us-gaap	Decrease In Unrecognized Tax Benefits Is Reasonably Possible DecreaseInUnrecognizedTaxBenefitsIsReasonablyPossible	60000000	USD
CY2019Q1	bk	Voting Model Entity Classificationof Carrying Amount Assets VotingModelEntityClassificationofCarryingAmountAssets	230000000	USD
CY2019Q1	bk	Voting Model Entity Classificationof Carrying Amount Liabilities VotingModelEntityClassificationofCarryingAmountLiabilities	1000000	USD
CY2019Q1	bk	Noncontrolling Interestin Voting Model Entity NoncontrollingInterestinVotingModelEntity	1000000	USD
CY2018Q4	bk	Voting Model Entity Classificationof Carrying Amount Assets VotingModelEntityClassificationofCarryingAmountAssets	253000000	USD
CY2018Q4	bk	Voting Model Entity Classificationof Carrying Amount Liabilities VotingModelEntityClassificationofCarryingAmountLiabilities	2000000	USD
CY2018Q4	bk	Noncontrolling Interestin Voting Model Entity NoncontrollingInterestinVotingModelEntity	1000000	USD
CY2019Q1	us-gaap	Preferred Stock Shares Authorized PreferredStockSharesAuthorized	100000000	shares
CY2019Q1	us-gaap	Preferred Stock Par Or Stated Value Per Share PreferredStockParOrStatedValuePerShare	0.01
CY2019Q1	us-gaap	Preferred Stock Shares Outstanding PreferredStockSharesOutstanding	35826	shares
CY2018Q4	us-gaap	Preferred Stock Shares Outstanding PreferredStockSharesOutstanding	35826	shares
CY2019Q1	us-gaap	Preferred Stock Value PreferredStockValue	3542000000	USD
CY2018Q4	us-gaap	Preferred Stock Value PreferredStockValue	3542000000	USD
CY2019Q1	us-gaap	Dividends Preferred Stock DividendsPreferredStock	36000000	USD
CY2018Q4	us-gaap	Dividends Preferred Stock DividendsPreferredStock	49000000	USD
CY2018Q1	us-gaap	Dividends Preferred Stock DividendsPreferredStock	36000000	USD
CY2019Q1	us-gaap	Other Comprehensive Income Loss Before Tax OtherComprehensiveIncomeLossBeforeTax	357000000	USD
CY2019Q1	us-gaap	Other Comprehensive Income Loss Tax OtherComprehensiveIncomeLossTax	84000000	USD
CY2019Q1	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	273000000	USD
CY2018Q4	us-gaap	Other Comprehensive Income Loss Before Tax OtherComprehensiveIncomeLossBeforeTax	-147000000	USD
CY2018Q4	us-gaap	Other Comprehensive Income Loss Tax OtherComprehensiveIncomeLossTax	45000000	USD
CY2018Q4	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-192000000	USD
CY2018Q1	us-gaap	Other Comprehensive Income Loss Before Tax OtherComprehensiveIncomeLossBeforeTax	-73000000	USD
CY2018Q1	us-gaap	Other Comprehensive Income Loss Tax OtherComprehensiveIncomeLossTax	-94000000	USD
CY2018Q1	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	21000000	USD
CY2019Q1	bk	Increase Decrease In Fair Value Of Loans Measured On Nonrecurring Basis Based On Fair Value Of Underlying Collateral IncreaseDecreaseInFairValueOfLoansMeasuredOnNonrecurringBasisBasedOnFairValueOfUnderlyingCollateral	-1000000	USD
CY2019Q1	bk	Long Term Debt Carrying Amount LongTermDebtCarryingAmount	240000000	USD
CY2019Q1	us-gaap	Long Term Debt Fair Value LongTermDebtFairValue	376000000	USD
CY2018Q4	us-gaap	Long Term Debt Fair Value LongTermDebtFairValue	371000000	USD
CY2019Q1	us-gaap	Derivative Loss On Derivative DerivativeLossOnDerivative	0	USD
CY2019Q1	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification Before Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationBeforeTax	-1000000	USD
CY2019Q1	us-gaap	Notional Amount Of Nonderivative Instruments NotionalAmountOfNonderivativeInstruments	171000000	USD
CY2019Q1	us-gaap	Derivative Gain Loss On Derivative Net DerivativeGainLossOnDerivativeNet	-6000000	USD
CY2018Q4	us-gaap	Derivative Gain Loss On Derivative Net DerivativeGainLossOnDerivativeNet	-17000000	USD
CY2018Q1	us-gaap	Derivative Gain Loss On Derivative Net DerivativeGainLossOnDerivativeNet	23000000	USD
CY2019Q1	us-gaap	Derivative Asset Fair Value Gross Asset Including Not Subject To Master Netting Arrangement DerivativeAssetFairValueGrossAssetIncludingNotSubjectToMasterNettingArrangement	8094000000	USD
CY2018Q4	us-gaap	Derivative Asset Fair Value Gross Asset Including Not Subject To Master Netting Arrangement DerivativeAssetFairValueGrossAssetIncludingNotSubjectToMasterNettingArrangement	8754000000	USD
CY2019Q1	us-gaap	Derivative Liability Fair Value Gross Liability Including Not Subject To Master Netting Arrangement DerivativeLiabilityFairValueGrossLiabilityIncludingNotSubjectToMasterNettingArrangement	7745000000	USD
CY2018Q4	us-gaap	Derivative Liability Fair Value Gross Liability Including Not Subject To Master Netting Arrangement DerivativeLiabilityFairValueGrossLiabilityIncludingNotSubjectToMasterNettingArrangement	8538000000	USD
CY2019Q1	us-gaap	Derivative Asset Fair Value Gross Liability DerivativeAssetFairValueGrossLiability	5586000000	USD
CY2018Q4	us-gaap	Derivative Asset Fair Value Gross Liability DerivativeAssetFairValueGrossLiability	5939000000	USD
CY2019Q1	us-gaap	Derivative Liability Fair Value Gross Asset DerivativeLiabilityFairValueGrossAsset	5338000000	USD
CY2018Q4	us-gaap	Derivative Liability Fair Value Gross Asset DerivativeLiabilityFairValueGrossAsset	6170000000	USD
CY2019Q1	us-gaap	Derivative Assets DerivativeAssets	2508000000	USD
CY2018Q4	us-gaap	Derivative Assets DerivativeAssets	2815000000	USD
CY2019Q1	us-gaap	Derivative Liabilities DerivativeLiabilities	2407000000	USD
CY2018Q4	us-gaap	Derivative Liabilities DerivativeLiabilities	2368000000	USD
CY2019Q1	us-gaap	Derivative Asset Collateral Obligation To Return Cash Offset DerivativeAssetCollateralObligationToReturnCashOffset	688000000	USD
CY2019Q1	us-gaap	Derivative Liability Collateral Right To Reclaim Cash Offset DerivativeLiabilityCollateralRightToReclaimCashOffset	440000000	USD
CY2018Q4	us-gaap	Derivative Asset Collateral Obligation To Return Cash Offset DerivativeAssetCollateralObligationToReturnCashOffset	809000000	USD
CY2018Q4	us-gaap	Derivative Liability Collateral Right To Reclaim Cash Offset DerivativeLiabilityCollateralRightToReclaimCashOffset	1040000000	USD
CY2019Q1	us-gaap	Foreign Currency Transaction Gain Loss Before Tax ForeignCurrencyTransactionGainLossBeforeTax	160000000	USD
CY2018Q4	us-gaap	Foreign Currency Transaction Gain Loss Before Tax ForeignCurrencyTransactionGainLossBeforeTax	159000000	USD
CY2018Q1	us-gaap	Foreign Currency Transaction Gain Loss Before Tax ForeignCurrencyTransactionGainLossBeforeTax	183000000	USD
CY2019Q1	us-gaap	Trading Gains Losses TradingGainsLosses	10000000	USD
CY2018Q4	us-gaap	Trading Gains Losses TradingGainsLosses	22000000	USD
CY2018Q1	us-gaap	Trading Gains Losses TradingGainsLosses	26000000	USD
CY2019Q1	bk	Foreign Exchange And Other Trading Activities ForeignExchangeAndOtherTradingActivities	170000000	USD
CY2018Q4	bk	Foreign Exchange And Other Trading Activities ForeignExchangeAndOtherTradingActivities	181000000	USD
CY2018Q1	bk	Foreign Exchange And Other Trading Activities ForeignExchangeAndOtherTradingActivities	209000000	USD
CY2019Q1	bk	Value At Risk Confidence Level ValueAtRiskConfidenceLevel	0.99
CY2019Q1	us-gaap	Derivative Net Liability Position Aggregate Fair Value DerivativeNetLiabilityPositionAggregateFairValue	2401000000	USD
CY2018Q4	us-gaap	Derivative Net Liability Position Aggregate Fair Value DerivativeNetLiabilityPositionAggregateFairValue	2877000000	USD
CY2019Q1	us-gaap	Collateral Already Posted Aggregate Fair Value CollateralAlreadyPostedAggregateFairValue	2232000000	USD
CY2018Q4	us-gaap	Collateral Already Posted Aggregate Fair Value CollateralAlreadyPostedAggregateFairValue	2801000000	USD
CY2019Q1	us-gaap	Additional Collateral Aggregate Fair Value AdditionalCollateralAggregateFairValue	80000000	USD
CY2018Q4	us-gaap	Additional Collateral Aggregate Fair Value AdditionalCollateralAggregateFairValue	100000000	USD
CY2019Q1	us-gaap	Derivative Fair Value Of Derivative Asset DerivativeFairValueOfDerivativeAsset	6662000000	USD
CY2019Q1	us-gaap	Derivative Asset Fair Value Gross Liability DerivativeAssetFairValueGrossLiability	5586000000	USD
CY2019Q1	us-gaap	Derivative Fair Value Of Derivative Asset Amount Not Offset Against Collateral DerivativeFairValueOfDerivativeAssetAmountNotOffsetAgainstCollateral	1076000000	USD
CY2019Q1	us-gaap	Derivative Asset Not Offset Policy Election Deduction DerivativeAssetNotOffsetPolicyElectionDeduction	200000000	USD
CY2019Q1	us-gaap	Derivative Collateral Obligation To Return Cash DerivativeCollateralObligationToReturnCash	0	USD
CY2019Q1	us-gaap	Derivative Fair Value Of Derivative Asset Amount Offset Against Collateral DerivativeFairValueOfDerivativeAssetAmountOffsetAgainstCollateral	876000000	USD
CY2019Q1	us-gaap	Derivative Asset Not Subject To Master Netting Arrangement DerivativeAssetNotSubjectToMasterNettingArrangement	1432000000	USD
CY2019Q1	us-gaap	Derivative Asset Not Subject To Master Netting Arrangement DerivativeAssetNotSubjectToMasterNettingArrangement	1432000000	USD
CY2019Q1	us-gaap	Derivative Asset Not Subject To Master Netting Arrangement DerivativeAssetNotSubjectToMasterNettingArrangement	1432000000	USD
CY2019Q1	us-gaap	Derivative Asset Fair Value Gross Asset Including Not Subject To Master Netting Arrangement DerivativeAssetFairValueGrossAssetIncludingNotSubjectToMasterNettingArrangement	8094000000	USD
CY2019Q1	us-gaap	Derivative Asset Fair Value Gross Liability DerivativeAssetFairValueGrossLiability	5586000000	USD
CY2019Q1	us-gaap	Derivative Assets DerivativeAssets	2508000000	USD
CY2019Q1	us-gaap	Derivative Asset Not Offset Policy Election Deduction DerivativeAssetNotOffsetPolicyElectionDeduction	200000000	USD
CY2019Q1	us-gaap	Derivative Collateral Obligation To Return Cash DerivativeCollateralObligationToReturnCash	0	USD
CY2019Q1	us-gaap	Derivative Asset Fair Value Offset Against Collateral Net Of Not Subject To Master Netting Arrangement Policy Election DerivativeAssetFairValueOffsetAgainstCollateralNetOfNotSubjectToMasterNettingArrangementPolicyElection	2308000000	USD
CY2019Q1	us-gaap	Securities Purchased Under Agreements To Resell Gross SecuritiesPurchasedUnderAgreementsToResellGross	76286000000	USD
CY2019Q1	us-gaap	Securities Purchased Under Agreements To Resell Liability SecuritiesPurchasedUnderAgreementsToResellLiability	47461000000	USD
CY2019Q1	us-gaap	Securities Purchased Under Agreements To Resell SecuritiesPurchasedUnderAgreementsToResell	28825000000	USD
CY2019Q1	us-gaap	Securities Purchased Under Agreements To Resell Not Offset Policy Election Deduction SecuritiesPurchasedUnderAgreementsToResellNotOffsetPolicyElectionDeduction	28806000000	USD
CY2019Q1	us-gaap	Securities Purchased Under Agreements To Resell Collateral Obligation To Return Cash SecuritiesPurchasedUnderAgreementsToResellCollateralObligationToReturnCash	0	USD
CY2019Q1	us-gaap	Securities Purchased Under Agreements To Resell Offset Against Collateral Net Of Not Subject To Master Netting Arrangement Policy Election SecuritiesPurchasedUnderAgreementsToResellOffsetAgainstCollateralNetOfNotSubjectToMasterNettingArrangementPolicyElection	19000000	USD
CY2019Q1	us-gaap	Securities Borrowed Gross SecuritiesBorrowedGross	11333000000	USD
CY2019Q1	us-gaap	Securities Borrowed SecuritiesBorrowed	11333000000	USD
CY2019Q1	us-gaap	Securities Borrowed Not Offset Policy Election Deduction SecuritiesBorrowedNotOffsetPolicyElectionDeduction	11019000000	USD
CY2019Q1	us-gaap	Securities Borrowed Offset Against Collateral Net Of Not Subject To Master Netting Arrangement Policy Election SecuritiesBorrowedOffsetAgainstCollateralNetOfNotSubjectToMasterNettingArrangementPolicyElection	314000000	USD
CY2019Q1	us-gaap	Derivative Asset Securities Purchased Under Agreements To Resell Securities Borrowed Gross DerivativeAssetSecuritiesPurchasedUnderAgreementsToResellSecuritiesBorrowedGross	95713000000	USD
CY2019Q1	us-gaap	Derivative Asset Securities Purchased Under Agreements To Resell Securities Borrowed Liability DerivativeAssetSecuritiesPurchasedUnderAgreementsToResellSecuritiesBorrowedLiability	53047000000	USD
CY2019Q1	us-gaap	Derivative Asset Securities Purchased Under Agreements To Resell Securities Borrowed DerivativeAssetSecuritiesPurchasedUnderAgreementsToResellSecuritiesBorrowed	42666000000	USD
CY2019Q1	us-gaap	Derivative Asset Securities Purchased Under Agreements To Resell Securities Borrowed Not Offset Policy Election Deduction DerivativeAssetSecuritiesPurchasedUnderAgreementsToResellSecuritiesBorrowedNotOffsetPolicyElectionDeduction	40025000000	USD
CY2019Q1	us-gaap	Derivative Asset Securities Purchased Under Agreements To Resell Securities Borrowed Collateral Obligation To Return Cash DerivativeAssetSecuritiesPurchasedUnderAgreementsToResellSecuritiesBorrowedCollateralObligationToReturnCash	0	USD
CY2019Q1	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	2641000000	USD
CY2018Q4	us-gaap	Derivative Fair Value Of Derivative Asset DerivativeFairValueOfDerivativeAsset	7101000000	USD
CY2018Q4	us-gaap	Derivative Asset Fair Value Gross Liability DerivativeAssetFairValueGrossLiability	5939000000	USD
CY2018Q4	us-gaap	Derivative Fair Value Of Derivative Asset Amount Not Offset Against Collateral DerivativeFairValueOfDerivativeAssetAmountNotOffsetAgainstCollateral	1162000000	USD
CY2018Q4	us-gaap	Derivative Asset Not Offset Policy Election Deduction DerivativeAssetNotOffsetPolicyElectionDeduction	203000000	USD
CY2018Q4	us-gaap	Derivative Collateral Obligation To Return Cash DerivativeCollateralObligationToReturnCash	0	USD
CY2018Q4	us-gaap	Derivative Fair Value Of Derivative Asset Amount Offset Against Collateral DerivativeFairValueOfDerivativeAssetAmountOffsetAgainstCollateral	959000000	USD
CY2018Q4	us-gaap	Derivative Asset Not Subject To Master Netting Arrangement DerivativeAssetNotSubjectToMasterNettingArrangement	1653000000	USD
CY2018Q4	us-gaap	Derivative Asset Not Subject To Master Netting Arrangement DerivativeAssetNotSubjectToMasterNettingArrangement	1653000000	USD
CY2019Q1	us-gaap	Securities Sold Under Agreements To Repurchase Asset SecuritiesSoldUnderAgreementsToRepurchaseAsset	47461000000	USD
CY2019Q1	us-gaap	Securities Sold Under Agreements To Repurchase SecuritiesSoldUnderAgreementsToRepurchase	9305000000	USD
CY2018Q4	us-gaap	Derivative Asset Not Subject To Master Netting Arrangement DerivativeAssetNotSubjectToMasterNettingArrangement	1653000000	USD
CY2018Q4	us-gaap	Derivative Asset Fair Value Gross Asset Including Not Subject To Master Netting Arrangement DerivativeAssetFairValueGrossAssetIncludingNotSubjectToMasterNettingArrangement	8754000000	USD
CY2018Q4	us-gaap	Derivative Asset Fair Value Gross Liability DerivativeAssetFairValueGrossLiability	5939000000	USD
CY2018Q4	us-gaap	Derivative Assets DerivativeAssets	2815000000	USD
CY2018Q4	us-gaap	Derivative Asset Not Offset Policy Election Deduction DerivativeAssetNotOffsetPolicyElectionDeduction	203000000	USD
CY2018Q4	us-gaap	Derivative Collateral Obligation To Return Cash DerivativeCollateralObligationToReturnCash	0	USD
CY2018Q4	us-gaap	Derivative Asset Fair Value Offset Against Collateral Net Of Not Subject To Master Netting Arrangement Policy Election DerivativeAssetFairValueOffsetAgainstCollateralNetOfNotSubjectToMasterNettingArrangementPolicyElection	2612000000	USD
CY2018Q4	us-gaap	Securities Purchased Under Agreements To Resell Gross SecuritiesPurchasedUnderAgreementsToResellGross	112245000000	USD
CY2018Q4	us-gaap	Securities Purchased Under Agreements To Resell Liability SecuritiesPurchasedUnderAgreementsToResellLiability	76040000000	USD
CY2018Q4	us-gaap	Securities Purchased Under Agreements To Resell SecuritiesPurchasedUnderAgreementsToResell	36205000000	USD
CY2018Q4	us-gaap	Securities Purchased Under Agreements To Resell Not Offset Policy Election Deduction SecuritiesPurchasedUnderAgreementsToResellNotOffsetPolicyElectionDeduction	36205000000	USD
CY2018Q4	us-gaap	Securities Purchased Under Agreements To Resell Collateral Obligation To Return Cash SecuritiesPurchasedUnderAgreementsToResellCollateralObligationToReturnCash	0	USD
CY2018Q4	us-gaap	Securities Purchased Under Agreements To Resell Offset Against Collateral Net Of Not Subject To Master Netting Arrangement Policy Election SecuritiesPurchasedUnderAgreementsToResellOffsetAgainstCollateralNetOfNotSubjectToMasterNettingArrangementPolicyElection	0	USD
CY2018Q4	us-gaap	Securities Borrowed Gross SecuritiesBorrowedGross	10588000000	USD
CY2018Q4	us-gaap	Securities Borrowed SecuritiesBorrowed	10588000000	USD
CY2018Q4	us-gaap	Securities Borrowed Not Offset Policy Election Deduction SecuritiesBorrowedNotOffsetPolicyElectionDeduction	10286000000	USD
CY2018Q4	us-gaap	Securities Borrowed Offset Against Collateral Net Of Not Subject To Master Netting Arrangement Policy Election SecuritiesBorrowedOffsetAgainstCollateralNetOfNotSubjectToMasterNettingArrangementPolicyElection	302000000	USD
CY2018Q4	us-gaap	Derivative Asset Securities Purchased Under Agreements To Resell Securities Borrowed Gross DerivativeAssetSecuritiesPurchasedUnderAgreementsToResellSecuritiesBorrowedGross	131587000000	USD
CY2018Q4	us-gaap	Derivative Asset Securities Purchased Under Agreements To Resell Securities Borrowed Liability DerivativeAssetSecuritiesPurchasedUnderAgreementsToResellSecuritiesBorrowedLiability	81979000000	USD
CY2018Q4	us-gaap	Derivative Asset Securities Purchased Under Agreements To Resell Securities Borrowed DerivativeAssetSecuritiesPurchasedUnderAgreementsToResellSecuritiesBorrowed	49608000000	USD
CY2018Q4	us-gaap	Derivative Asset Securities Purchased Under Agreements To Resell Securities Borrowed Not Offset Policy Election Deduction DerivativeAssetSecuritiesPurchasedUnderAgreementsToResellSecuritiesBorrowedNotOffsetPolicyElectionDeduction	46694000000	USD
CY2018Q4	us-gaap	Derivative Asset Securities Purchased Under Agreements To Resell Securities Borrowed Collateral Obligation To Return Cash DerivativeAssetSecuritiesPurchasedUnderAgreementsToResellSecuritiesBorrowedCollateralObligationToReturnCash	0	USD
CY2018Q4	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	2914000000	USD
CY2019Q1	us-gaap	Derivative Fair Value Of Derivative Liability DerivativeFairValueOfDerivativeLiability	7165000000	USD
CY2019Q1	us-gaap	Derivative Liability Fair Value Gross Asset DerivativeLiabilityFairValueGrossAsset	5338000000	USD
CY2019Q1	us-gaap	Derivative Fair Value Of Derivative Liability Amount Not Offset Against Collateral DerivativeFairValueOfDerivativeLiabilityAmountNotOffsetAgainstCollateral	1827000000	USD
CY2019Q1	us-gaap	Derivative Liability Not Offset Policy Election Deduction DerivativeLiabilityNotOffsetPolicyElectionDeduction	1066000000	USD
CY2019Q1	us-gaap	Derivative Collateral Right To Reclaim Cash DerivativeCollateralRightToReclaimCash	0	USD
CY2019Q1	us-gaap	Derivative Fair Value Of Derivative Liability Amount Offset Against Collateral DerivativeFairValueOfDerivativeLiabilityAmountOffsetAgainstCollateral	761000000	USD
CY2019Q1	us-gaap	Derivative Liability Not Subject To Master Netting Arrangement DerivativeLiabilityNotSubjectToMasterNettingArrangement	580000000	USD
CY2019Q1	us-gaap	Derivative Liability Not Subject To Master Netting Arrangement DerivativeLiabilityNotSubjectToMasterNettingArrangement	580000000	USD
CY2019Q1	us-gaap	Derivative Liability Not Subject To Master Netting Arrangement DerivativeLiabilityNotSubjectToMasterNettingArrangement	580000000	USD
CY2019Q1	us-gaap	Derivative Liability Fair Value Gross Liability Including Not Subject To Master Netting Arrangement DerivativeLiabilityFairValueGrossLiabilityIncludingNotSubjectToMasterNettingArrangement	7745000000	USD
CY2019Q1	us-gaap	Derivative Liability Fair Value Gross Asset DerivativeLiabilityFairValueGrossAsset	5338000000	USD
CY2019Q1	us-gaap	Derivative Liabilities DerivativeLiabilities	2407000000	USD
CY2019Q1	us-gaap	Derivative Liability Not Offset Policy Election Deduction DerivativeLiabilityNotOffsetPolicyElectionDeduction	1066000000	USD
CY2019Q1	us-gaap	Derivative Collateral Right To Reclaim Cash DerivativeCollateralRightToReclaimCash	0	USD
CY2019Q1	us-gaap	Derivative Liability Fair Value Offset Against Collateral Net Of Not Subject To Master Netting Arrangement Policy Election DerivativeLiabilityFairValueOffsetAgainstCollateralNetOfNotSubjectToMasterNettingArrangementPolicyElection	1341000000	USD
CY2019Q1	us-gaap	Securities Sold Under Agreements To Repurchase Gross SecuritiesSoldUnderAgreementsToRepurchaseGross	56766000000	USD
CY2019Q1	us-gaap	Securities Sold Under Agreements To Resell Not Offset Policy Election Deduction SecuritiesSoldUnderAgreementsToResellNotOffsetPolicyElectionDeduction	9305000000	USD
CY2019Q1	us-gaap	Securities Sold Under Agreements To Repurchase Collateral Right To Reclaim Securities SecuritiesSoldUnderAgreementsToRepurchaseCollateralRightToReclaimSecurities	0	USD
CY2019Q1	us-gaap	Securities Sold Under Agreements To Repurchase Offset Against Collateral Net Of Not Subject To Master Netting Arrangement Policy Election SecuritiesSoldUnderAgreementsToRepurchaseOffsetAgainstCollateralNetOfNotSubjectToMasterNettingArrangementPolicyElection	0	USD
CY2019Q1	us-gaap	Securities Loaned Gross SecuritiesLoanedGross	874000000	USD
CY2019Q1	us-gaap	Securities Loaned SecuritiesLoaned	874000000	USD
CY2019Q1	us-gaap	Securities Loaned Not Offset Policy Election Deduction SecuritiesLoanedNotOffsetPolicyElectionDeduction	845000000	USD
CY2019Q1	us-gaap	Securities Loaned Offset Against Collateral Net Of Not Subject To Master Netting Arrangement Policy Election SecuritiesLoanedOffsetAgainstCollateralNetOfNotSubjectToMasterNettingArrangementPolicyElection	29000000	USD
CY2019Q1	us-gaap	Derivative Liability Securities Sold Under Agreements To Resell Securities Loaned Gross DerivativeLiabilitySecuritiesSoldUnderAgreementsToResellSecuritiesLoanedGross	65385000000	USD
CY2019Q1	us-gaap	Derivative Liability Securities Sold Under Agreements To Resell Securities Loaned Asset DerivativeLiabilitySecuritiesSoldUnderAgreementsToResellSecuritiesLoanedAsset	52799000000	USD
CY2019Q1	us-gaap	Derivative Liability Securities Sold Under Agreements To Resell Securities Loaned DerivativeLiabilitySecuritiesSoldUnderAgreementsToResellSecuritiesLoaned	12586000000	USD
CY2019Q1	us-gaap	Derivative Liability Securities Sold Under Agreements To Resell Securities Loaned Not Offset Policy Election Deduction DerivativeLiabilitySecuritiesSoldUnderAgreementsToResellSecuritiesLoanedNotOffsetPolicyElectionDeduction	11216000000	USD
CY2019Q1	us-gaap	Derivative Liability Securities Sold Under Agreements To Resell Securities Loaned Collateral Right To Reclaim Securities DerivativeLiabilitySecuritiesSoldUnderAgreementsToResellSecuritiesLoanedCollateralRightToReclaimSecurities	0	USD
CY2019Q1	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	1370000000	USD
CY2018Q4	us-gaap	Derivative Fair Value Of Derivative Liability DerivativeFairValueOfDerivativeLiability	7966000000	USD
CY2018Q4	us-gaap	Derivative Liability Fair Value Gross Asset DerivativeLiabilityFairValueGrossAsset	6170000000	USD
CY2018Q4	us-gaap	Derivative Fair Value Of Derivative Liability Amount Not Offset Against Collateral DerivativeFairValueOfDerivativeLiabilityAmountNotOffsetAgainstCollateral	1796000000	USD
CY2018Q4	us-gaap	Derivative Liability Not Offset Policy Election Deduction DerivativeLiabilityNotOffsetPolicyElectionDeduction	771000000	USD
CY2018Q4	us-gaap	Derivative Collateral Right To Reclaim Cash DerivativeCollateralRightToReclaimCash	0	USD
CY2018Q4	us-gaap	Derivative Fair Value Of Derivative Liability Amount Offset Against Collateral DerivativeFairValueOfDerivativeLiabilityAmountOffsetAgainstCollateral	1025000000	USD
CY2018Q4	us-gaap	Derivative Liability Not Subject To Master Netting Arrangement DerivativeLiabilityNotSubjectToMasterNettingArrangement	572000000	USD
CY2018Q4	us-gaap	Derivative Liability Not Subject To Master Netting Arrangement DerivativeLiabilityNotSubjectToMasterNettingArrangement	572000000	USD
CY2018Q4	us-gaap	Derivative Liability Not Subject To Master Netting Arrangement DerivativeLiabilityNotSubjectToMasterNettingArrangement	572000000	USD
CY2018Q4	us-gaap	Derivative Liability Fair Value Gross Liability Including Not Subject To Master Netting Arrangement DerivativeLiabilityFairValueGrossLiabilityIncludingNotSubjectToMasterNettingArrangement	8538000000	USD
CY2018Q4	us-gaap	Derivative Liability Fair Value Gross Asset DerivativeLiabilityFairValueGrossAsset	6170000000	USD
CY2018Q4	us-gaap	Derivative Liabilities DerivativeLiabilities	2368000000	USD
CY2018Q4	us-gaap	Derivative Liability Not Offset Policy Election Deduction DerivativeLiabilityNotOffsetPolicyElectionDeduction	771000000	USD
CY2018Q4	us-gaap	Derivative Collateral Right To Reclaim Cash DerivativeCollateralRightToReclaimCash	0	USD
CY2018Q4	us-gaap	Derivative Liability Fair Value Offset Against Collateral Net Of Not Subject To Master Netting Arrangement Policy Election DerivativeLiabilityFairValueOffsetAgainstCollateralNetOfNotSubjectToMasterNettingArrangementPolicyElection	1597000000	USD
CY2018Q4	us-gaap	Securities Sold Under Agreements To Repurchase Gross SecuritiesSoldUnderAgreementsToRepurchaseGross	84665000000	USD
CY2018Q4	us-gaap	Securities Sold Under Agreements To Repurchase Asset SecuritiesSoldUnderAgreementsToRepurchaseAsset	76040000000	USD
CY2018Q4	us-gaap	Securities Sold Under Agreements To Repurchase SecuritiesSoldUnderAgreementsToRepurchase	8625000000	USD
CY2018Q4	us-gaap	Securities Sold Under Agreements To Resell Not Offset Policy Election Deduction SecuritiesSoldUnderAgreementsToResellNotOffsetPolicyElectionDeduction	8625000000	USD
CY2018Q4	us-gaap	Securities Sold Under Agreements To Repurchase Collateral Right To Reclaim Securities SecuritiesSoldUnderAgreementsToRepurchaseCollateralRightToReclaimSecurities	0	USD
CY2018Q4	us-gaap	Securities Sold Under Agreements To Repurchase Offset Against Collateral Net Of Not Subject To Master Netting Arrangement Policy Election SecuritiesSoldUnderAgreementsToRepurchaseOffsetAgainstCollateralNetOfNotSubjectToMasterNettingArrangementPolicyElection	0	USD
CY2018Q4	us-gaap	Securities Loaned Gross SecuritiesLoanedGross	997000000	USD
CY2018Q4	us-gaap	Securities Loaned SecuritiesLoaned	997000000	USD
CY2018Q4	us-gaap	Securities Loaned Not Offset Policy Election Deduction SecuritiesLoanedNotOffsetPolicyElectionDeduction	937000000	USD
CY2018Q4	us-gaap	Securities Loaned Offset Against Collateral Net Of Not Subject To Master Netting Arrangement Policy Election SecuritiesLoanedOffsetAgainstCollateralNetOfNotSubjectToMasterNettingArrangementPolicyElection	60000000	USD
CY2018Q4	us-gaap	Derivative Liability Securities Sold Under Agreements To Resell Securities Loaned Gross DerivativeLiabilitySecuritiesSoldUnderAgreementsToResellSecuritiesLoanedGross	94200000000	USD
CY2018Q4	us-gaap	Derivative Liability Securities Sold Under Agreements To Resell Securities Loaned Asset DerivativeLiabilitySecuritiesSoldUnderAgreementsToResellSecuritiesLoanedAsset	82210000000	USD
CY2018Q4	us-gaap	Derivative Liability Securities Sold Under Agreements To Resell Securities Loaned DerivativeLiabilitySecuritiesSoldUnderAgreementsToResellSecuritiesLoaned	11990000000	USD
CY2018Q4	us-gaap	Derivative Liability Securities Sold Under Agreements To Resell Securities Loaned Not Offset Policy Election Deduction DerivativeLiabilitySecuritiesSoldUnderAgreementsToResellSecuritiesLoanedNotOffsetPolicyElectionDeduction	10333000000	USD
CY2018Q4	us-gaap	Derivative Liability Securities Sold Under Agreements To Resell Securities Loaned Collateral Right To Reclaim Securities DerivativeLiabilitySecuritiesSoldUnderAgreementsToResellSecuritiesLoanedCollateralRightToReclaimSecurities	0	USD
CY2018Q4	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	1657000000	USD
CY2019Q1	us-gaap	Financial Assets Sold Under Agreements To Repurchase Gross Including Not Subject To Master Netting Arrangement FinancialAssetsSoldUnderAgreementsToRepurchaseGrossIncludingNotSubjectToMasterNettingArrangement	56766000000	USD
CY2018Q4	us-gaap	Financial Assets Sold Under Agreements To Repurchase Gross Including Not Subject To Master Netting Arrangement FinancialAssetsSoldUnderAgreementsToRepurchaseGrossIncludingNotSubjectToMasterNettingArrangement	84665000000	USD
CY2019Q1	us-gaap	Securities Loaned Including Not Subject To Master Netting Arrangement And Assets Other Than Securities Transferred SecuritiesLoanedIncludingNotSubjectToMasterNettingArrangementAndAssetsOtherThanSecuritiesTransferred	874000000	USD
CY2018Q4	us-gaap	Securities Loaned Including Not Subject To Master Netting Arrangement And Assets Other Than Securities Transferred SecuritiesLoanedIncludingNotSubjectToMasterNettingArrangementAndAssetsOtherThanSecuritiesTransferred	997000000	USD
CY2019Q1	us-gaap	Secured Borrowings Gross Including Not Subject To Master Netting Arrangement SecuredBorrowingsGrossIncludingNotSubjectToMasterNettingArrangement	57640000000	USD
CY2018Q4	us-gaap	Secured Borrowings Gross Including Not Subject To Master Netting Arrangement SecuredBorrowingsGrossIncludingNotSubjectToMasterNettingArrangement	85662000000	USD
CY2019Q1	bk	Securities Lending Indemnifications Joint Venture SecuritiesLendingIndemnificationsJointVenture	60000000000	USD
CY2018Q4	bk	Securities Lending Indemnifications Joint Venture SecuritiesLendingIndemnificationsJointVenture	56000000000	USD
CY2019Q1	bk	Lending Commitment Maturing Within One Year LendingCommitmentMaturingWithinOneYear	32200000000	USD
CY2019Q1	bk	Lending Commitment Maturing After One Through Five Years LendingCommitmentMaturingAfterOneThroughFiveYears	19200000000	USD
CY2019Q1	bk	Lending Commitment Maturing After Five Years LendingCommitmentMaturingAfterFiveYears	440000000	USD
CY2019Q1	bk	Other Liabilities Allowance For Lending Related Commitments OtherLiabilitiesAllowanceForLendingRelatedCommitments	102000000	USD
CY2018Q4	bk	Other Liabilities Allowance For Lending Related Commitments OtherLiabilitiesAllowanceForLendingRelatedCommitments	106000000	USD
CY2019Q1	bk	Securities Lending Cash Collateral Percentage SecuritiesLendingCashCollateralPercentage	1.02
CY2019Q1	bk	Securities Lending Indemnifications Collateral SecuritiesLendingIndemnificationsCollateral	433000000000	USD
CY2018Q4	bk	Securities Lending Indemnifications Collateral SecuritiesLendingIndemnificationsCollateral	420000000000	USD
CY2019Q1	bk	Securities Lending Indemnifications Joint Venture SecuritiesLendingIndemnificationsJointVenture	60000000000	USD
CY2018Q4	bk	Securities Lending Indemnifications Joint Venture SecuritiesLendingIndemnificationsJointVenture	56000000000	USD
CY2019Q1	bk	Securities Lending Indemnifications Collateral Joint Venture SecuritiesLendingIndemnificationsCollateralJointVenture	63000000000	USD
CY2018Q4	bk	Securities Lending Indemnifications Collateral Joint Venture SecuritiesLendingIndemnificationsCollateralJointVenture	59000000000	USD
CY2014Q2	bk	Loss Contingency Numberof Mortgage Back Securities Trust LossContingencyNumberofMortgageBackSecuritiesTrust	233	trust
CY2019Q1	bk	Number Of Principal Businesses NumberOfPrincipalBusinesses	2	business
CY2019Q1	us-gaap	Transfer To Other Real Estate TransferToOtherRealEstate	0	USD
CY2018Q1	us-gaap	Transfer To Other Real Estate TransferToOtherRealEstate	1000000	USD
CY2019Q1	bk	Consolidated Noncash Assets Transfer Of Financial Assets Consolidation Of Variable Interest Entities ConsolidatedNoncashAssetsTransferOfFinancialAssetsConsolidationOfVariableInterestEntities	11000000	USD
CY2018Q1	bk	Consolidated Noncash Assets Transfer Of Financial Assets Consolidation Of Variable Interest Entities ConsolidatedNoncashAssetsTransferOfFinancialAssetsConsolidationOfVariableInterestEntities	125000000	USD
CY2019Q1	bk	Consolidated Noncash Liabilities Transfer Of Financial Assets Consolidation Of Variable Interest Entities ConsolidatedNoncashLiabilitiesTransferOfFinancialAssetsConsolidationOfVariableInterestEntities	1000000	USD
CY2018Q1	bk	Consolidated Noncash Liabilities Transfer Of Financial Assets Consolidation Of Variable Interest Entities ConsolidatedNoncashLiabilitiesTransferOfFinancialAssetsConsolidationOfVariableInterestEntities	9000000	USD
CY2019Q1	bk	Consolidated Noncash Noncontrolling Interests Transfer Of Financial Assets Consolidation Of Variable Interest Entities ConsolidatedNoncashNoncontrollingInterestsTransferOfFinancialAssetsConsolidationOfVariableInterestEntities	21000000	USD
CY2018Q1	bk	Consolidated Noncash Noncontrolling Interests Transfer Of Financial Assets Consolidation Of Variable Interest Entities ConsolidatedNoncashNoncontrollingInterestsTransferOfFinancialAssetsConsolidationOfVariableInterestEntities	104000000	USD
CY2019Q1	bk	Securities Not Settled SecuritiesNotSettled	1407000000	USD
CY2018Q1	bk	Securities Not Settled SecuritiesNotSettled	414000000	USD
CY2019Q1	bk	Securities Sales Not Settled SecuritiesSalesNotSettled	0	USD
CY2018Q1	bk	Securities Sales Not Settled SecuritiesSalesNotSettled	30000000	USD
CY2019Q1	bk	Securities Matured Not Settled SecuritiesMaturedNotSettled	680000000	USD
CY2018Q1	bk	Securities Matured Not Settled SecuritiesMaturedNotSettled	0	USD
CY2019Q1	bk	Available For Sale Securities Transferred To Trading Assets1 AvailableForSaleSecuritiesTransferredToTradingAssets1	0	USD
CY2018Q1	bk	Available For Sale Securities Transferred To Trading Assets1 AvailableForSaleSecuritiesTransferredToTradingAssets1	963000000	USD
CY2019Q1	bk	Heldtomaturity Securities Transferredto Availableforsaleat Carrying Value HeldtomaturitySecuritiesTransferredtoAvailableforsaleatCarryingValue	0	USD
CY2018Q1	bk	Heldtomaturity Securities Transferredto Availableforsaleat Carrying Value HeldtomaturitySecuritiesTransferredtoAvailableforsaleatCarryingValue	1087000000	USD
CY2019Q1	us-gaap	Right Of Use Asset Obtained In Exchange For Finance Lease Liability RightOfUseAssetObtainedInExchangeForFinanceLeaseLiability	13000000	USD
CY2018Q1	us-gaap	Right Of Use Asset Obtained In Exchange For Finance Lease Liability RightOfUseAssetObtainedInExchangeForFinanceLeaseLiability	15000000	USD
CY2019Q1	us-gaap	Right Of Use Asset Obtained In Exchange For Operating Lease Liability RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability	1281000000	USD
CY2018Q1	us-gaap	Right Of Use Asset Obtained In Exchange For Operating Lease Liability RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability	0	USD

Files In Submission

Name	View Source	Status
0001390777-19-000063-index-headers.html	Edgar Link	pending
0001390777-19-000063-index.html	Edgar Link	pending
0001390777-19-000063.txt	Edgar Link	pending
0001390777-19-000063-xbrl.zip	Edgar Link	pending
bk-20190331.xsd	Edgar Link	pending
bk-20190331_cal.xml	Edgar Link	unprocessable
bk-20190331_def.xml	Edgar Link	unprocessable
bk-20190331_lab.xml	Edgar Link	unprocessable
bk-20190331_pre.xml	Edgar Link	unprocessable
businessesdonotuse4q19.jpg	Edgar Link	pending
FilingSummary.xml	Edgar Link	unprocessable
Financial_Report.xlsx	Edgar Link	pending
form10-q1q19.htm	Edgar Link	pending
form10-q1q19_htm.xml	Edgar Link	completed
form10-qex3111q19.htm	Edgar Link	pending
form10-qex3121q19.htm	Edgar Link	pending
form10-qex3211q19.htm	Edgar Link	pending
form10-qex3221q19.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
R108.htm	Edgar Link	pending
R109.htm	Edgar Link	pending
R11.htm	Edgar Link	pending
R110.htm	Edgar Link	pending
R111.htm	Edgar Link	pending
R112.htm	Edgar Link	pending
R113.htm	Edgar Link	pending
R114.htm	Edgar Link	pending
R115.htm	Edgar Link	pending
R116.htm	Edgar Link	pending
R117.htm	Edgar Link	pending
R118.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
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
R9999.htm	Edgar Link	pending
report.css	Edgar Link	pending
Show.js	Edgar Link	pending

Create your account

Find Stocks Worth Researching

Deeply Understand Businesses

Value Businesses Intelligently

$BK
Bank of New York Mellon Corp Stock $bk

2019 Q1 Form 10-Q Financial Statement

#000139077719000063 Filed on May 08, 2019

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$BK Bank of New York Mellon Corp Stock $bk

2019 Q1 Form 10-Q Financial Statement

#000139077719000063 Filed on May 08, 2019

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$BK
Bank of New York Mellon Corp Stock $bk