$STT
State Street Corp Stock $stt

$stt Overview Financials Valuation SEC Filings Company Website

2023 Q2 Form 10-Q Financial Statement

#000009375123000554 Filed on April 27, 2023

Income Statement

Concept	2023 Q2	2023 Q1
Revenue	$3.110B	$3.101B
YoY Change	5.32%	0.65%
Cost Of Revenue
YoY Change
Gross Profit
YoY Change
Gross Profit Margin
Selling, General & Admin
YoY Change
% of Gross Profit
Research & Development	$405.0M	$414.0M
YoY Change	3.32%	-2.13%
% of Gross Profit
Depreciation & Amortization	$237.0M	$231.0M
YoY Change	-4.44%	-21.16%
% of Gross Profit
Operating Expenses	$405.0M	$414.0M
YoY Change	3.32%	-2.13%
Operating Profit
YoY Change
Interest Expense	$1.541B	$1.261B
YoY Change	1184.17%	10408.33%
% of Operating Profit
Other Income/Expense, Net	$286.0M	$270.0M
YoY Change	9.16%	11.11%
Pretax Income	$916.0M	$688.0M
YoY Change	9.7%	-8.75%
Income Tax	$153.0M	$139.0M
% Of Pretax Income	16.7%	20.2%
Net Earnings	$726.0M	$525.0M
YoY Change	-2.81%	-13.08%
Net Earnings / Revenue	23.34%	16.93%
Basic Earnings Per Share	$2.20	$1.54
Diluted Earnings Per Share	$2.18	$1.52
COMMON SHARES
Basic Shares Outstanding	334.3M shares	344.5M shares
Diluted Shares Outstanding	333.5M shares	345.5M shares

Balance Sheet

Concept	2023 Q2	2023 Q1
SHORT-TERM ASSETS
Cash & Short-Term Investments
YoY Change
Cash & Equivalents	$3.930B	$3.698B
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	$2.928B	$2.337B
YoY Change	30.71%	4.85%
Goodwill	$7.544B	$7.530B
YoY Change	1.06%	-0.69%
Intangibles
YoY Change
Long-Term Investments	$2.905B	$3.025B
YoY Change	-10.78%	-6.52%
Other Assets	$1.139B	$989.0M
YoY Change	10.91%	27.61%
Total Long-Term Assets
YoY Change
TOTAL ASSETS
Total Short-Term Assets
Total Long-Term Assets
Total Assets	$294.6B	$290.8B
YoY Change	-1.89%	-9.78%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable
YoY Change
Accrued Expenses	$26.52B	$22.43B
YoY Change	47.4%	-16.52%
Deferred Revenue
YoY Change
Short-Term Debt	$4.347B	$3.703B
YoY Change	324.51%	-13.78%
Long-Term Debt Due
YoY Change
Total Short-Term Liabilities	$30.86B	$26.13B
YoY Change	71.57%	-2.74%
LONG-TERM LIABILITIES
Long-Term Debt	$17.18B	$16.31B
YoY Change	26.96%	17.12%
Other Long-Term Liabilities
YoY Change
Total Long-Term Liabilities	$17.18B	$16.31B
YoY Change	26.96%	17.12%
TOTAL LIABILITIES
Total Short-Term Liabilities	$30.86B	$26.13B
Total Long-Term Liabilities	$17.18B	$16.31B
Total Liabilities	$270.4B	$266.1B
YoY Change	-1.49%	-10.15%
SHAREHOLDERS EQUITY
Retained Earnings	$27.81B	$27.34B
YoY Change	6.48%	6.75%
Common Stock	$504.0M	$504.0M
YoY Change	0.0%	0.0%
Preferred Stock
YoY Change
Treasury Stock (at cost)	$13.56B	$12.52B
YoY Change	36.95%	26.1%
Treasury Stock Shares
Shareholders Equity	$24.20B	$24.75B
YoY Change
Total Liabilities & Shareholders Equity	$294.6B	$290.8B
YoY Change	-1.89%	-9.78%

Cashflow Statement

Concept	2023 Q2	2023 Q1
OPERATING ACTIVITIES
Net Income	$726.0M	$525.0M
YoY Change	-2.81%	-13.08%
Depreciation, Depletion And Amortization	$237.0M	$231.0M
YoY Change	-4.44%	-21.16%
Cash From Operating Activities	-$852.0M	-$2.862B
YoY Change	-79.4%	-162.41%
INVESTING ACTIVITIES
Capital Expenditures	$170.0M	$182.0M
YoY Change	-193.41%	31.88%
Acquisitions		$0.00
YoY Change		-100.0%
Other Investing Activities	$2.256B	-$188.0M
YoY Change	-87.3%	1609.09%
Cash From Investing Activities	$2.086B	$14.31B
YoY Change	-88.14%	-430.07%
FINANCING ACTIVITIES
Cash Dividend Paid		$243.0M
YoY Change		6.11%
Common Stock Issuance & Retirement, Net
YoY Change
Debt Paid & Issued, Net
YoY Change
Cash From Financing Activities	-1.002B	-$11.72B
YoY Change	-92.24%	1195.25%
NET CHANGE
Cash From Operating Activities	-852.0M	-$2.862B
Cash From Investing Activities	2.086B	$14.31B
Cash From Financing Activities	-1.002B	-$11.72B
Net Change In Cash	232.0M	-$272.0M
YoY Change	-56.96%	-58.47%
FREE CASH FLOW
Cash From Operating Activities	-$852.0M	-$2.862B
Capital Expenditures	$170.0M	$182.0M
Free Cash Flow	-$1.022B	-$3.044B
YoY Change	-74.15%	-168.44%

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value	Unit
CY2023Q1	dei	Entity Central Index Key EntityCentralIndexKey	0000093751
CY2023Q1	dei	Current Fiscal Year End Date CurrentFiscalYearEndDate	--12-31
CY2023Q1	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2023
CY2023Q1	dei	Document Fiscal Period Focus DocumentFiscalPeriodFocus	Q1
CY2023Q1	dei	Amendment Flag AmendmentFlag	false
CY2023Q1	us-gaap	Revenue Remaining Performance Obligation Percentage RevenueRemainingPerformanceObligationPercentage	0.50
CY2023Q1	dei	Document Type DocumentType	10-Q
CY2023Q1	dei	Document Quarterly Report DocumentQuarterlyReport	true
CY2023Q1	dei	Document Period End Date DocumentPeriodEndDate	2023-03-31
CY2023Q1	dei	Document Transition Report DocumentTransitionReport	false
CY2023Q1	dei	Entity File Number EntityFileNumber	001-07511
CY2023Q1	dei	Entity Registrant Name EntityRegistrantName	STATE STREET CORPORATION
CY2023Q1	dei	Entity Incorporation State Country Code EntityIncorporationStateCountryCode	MA
CY2023Q1	dei	Entity Tax Identification Number EntityTaxIdentificationNumber	04-2456637
CY2023Q1	dei	Entity Address Address Line1 EntityAddressAddressLine1	One Lincoln Street
CY2023Q1	dei	Entity Address City Or Town EntityAddressCityOrTown	Boston,
CY2023Q1	dei	Entity Address State Or Province EntityAddressStateOrProvince	MA
CY2023Q1	dei	Entity Address Postal Zip Code EntityAddressPostalZipCode	02111
CY2023Q1	dei	City Area Code CityAreaCode	(617)
CY2023Q1	dei	Local Phone Number LocalPhoneNumber	786-3000
CY2023Q1	dei	Entity Current Reporting Status EntityCurrentReportingStatus	Yes
CY2023Q1	dei	Entity Interactive Data Current EntityInteractiveDataCurrent	Yes
CY2023Q1	dei	Entity Filer Category EntityFilerCategory	Large Accelerated Filer
CY2023Q1	dei	Entity Small Business EntitySmallBusiness	false
CY2023Q1	dei	Entity Emerging Growth Company EntityEmergingGrowthCompany	false
CY2023Q1	dei	Entity Shell Company EntityShellCompany	false
CY2023Q2	dei	Entity Common Stock Shares Outstanding EntityCommonStockSharesOutstanding	334258843	shares
CY2023Q1	stt	Fees And Commissions Servicing Fees FeesAndCommissionsServicingFees	1217000000	usd
CY2022Q1	stt	Fees And Commissions Servicing Fees FeesAndCommissionsServicingFees	1368000000	usd
CY2023Q1	stt	Fees And Commissions Management Fees FeesAndCommissionsManagementFees	457000000	usd
CY2022Q1	stt	Fees And Commissions Management Fees FeesAndCommissionsManagementFees	520000000	usd
CY2023Q1	stt	Fees And Commissions Foreign Exchange Trading Services FeesAndCommissionsForeignExchangeTradingServices	342000000	usd
CY2022Q1	stt	Fees And Commissions Foreign Exchange Trading Services FeesAndCommissionsForeignExchangeTradingServices	359000000	usd
CY2023Q1	stt	Fees And Commissions Securities Finance FeesAndCommissionsSecuritiesFinance	109000000	usd
CY2022Q1	stt	Fees And Commissions Securities Finance FeesAndCommissionsSecuritiesFinance	96000000	usd
CY2023Q1	stt	Fees And Commissions Processing Fees And Other FeesAndCommissionsProcessingFeesAndOther	165000000	usd
CY2022Q1	stt	Fees And Commissions Processing Fees And Other FeesAndCommissionsProcessingFeesAndOther	201000000	usd
CY2023Q1	us-gaap	Noninterest Income Other NoninterestIncomeOther	45000000	usd
CY2022Q1	us-gaap	Noninterest Income Other NoninterestIncomeOther	29000000	usd
CY2023Q1	us-gaap	Noninterest Income NoninterestIncome	2335000000	usd
CY2022Q1	us-gaap	Noninterest Income NoninterestIncome	2573000000	usd
CY2023Q1	us-gaap	Interest And Dividend Income Operating InterestAndDividendIncomeOperating	2027000000	usd
CY2022Q1	us-gaap	Interest And Dividend Income Operating InterestAndDividendIncomeOperating	521000000	usd
CY2023Q1	us-gaap	Interest Expense InterestExpense	1261000000	usd
CY2022Q1	us-gaap	Interest Expense InterestExpense	12000000	usd
CY2023Q1	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	766000000	usd
CY2022Q1	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	509000000	usd
CY2023Q1	us-gaap	Debt Securities Available For Sale Realized Gain Loss DebtSecuritiesAvailableForSaleRealizedGainLoss	0	usd
CY2022Q1	us-gaap	Debt Securities Available For Sale Realized Gain Loss DebtSecuritiesAvailableForSaleRealizedGainLoss	-1000000	usd
CY2023Q1	us-gaap	Other Operating Income Expense Net OtherOperatingIncomeExpenseNet	0	usd
CY2022Q1	us-gaap	Other Operating Income Expense Net OtherOperatingIncomeExpenseNet	-1000000	usd
CY2023Q1	us-gaap	Revenues Revenues	3101000000	usd
CY2022Q1	us-gaap	Revenues Revenues	3081000000	usd
CY2023Q1	us-gaap	Financing Receivable Excluding Accrued Interest Credit Loss Expense Reversal FinancingReceivableExcludingAccruedInterestCreditLossExpenseReversal	44000000	usd
CY2022Q1	us-gaap	Financing Receivable Excluding Accrued Interest Credit Loss Expense Reversal FinancingReceivableExcludingAccruedInterestCreditLossExpenseReversal	0	usd
CY2023Q1	us-gaap	Labor And Related Expense LaborAndRelatedExpense	1292000000	usd
CY2022Q1	us-gaap	Labor And Related Expense LaborAndRelatedExpense	1232000000	usd
CY2023Q1	us-gaap	Communications And Information Technology CommunicationsAndInformationTechnology	414000000	usd
CY2022Q1	us-gaap	Communications And Information Technology CommunicationsAndInformationTechnology	423000000	usd
CY2023Q1	us-gaap	Floor Brokerage Exchange And Clearance Fees FloorBrokerageExchangeAndClearanceFees	239000000	usd
CY2022Q1	us-gaap	Floor Brokerage Exchange And Clearance Fees FloorBrokerageExchangeAndClearanceFees	264000000	usd
CY2023Q1	us-gaap	Occupancy Net OccupancyNet	94000000	usd
CY2022Q1	us-gaap	Occupancy Net OccupancyNet	95000000	usd
CY2023Q1	stt	Acquisition And Restructuring Costs AcquisitionAndRestructuringCosts	0	usd
CY2022Q1	stt	Acquisition And Restructuring Costs AcquisitionAndRestructuringCosts	9000000	usd
CY2023Q1	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	60000000	usd
CY2022Q1	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	61000000	usd
CY2023Q1	us-gaap	Other Expenses OtherExpenses	270000000	usd
CY2022Q1	us-gaap	Other Expenses OtherExpenses	243000000	usd
CY2023Q1	us-gaap	Noninterest Expense NoninterestExpense	2369000000	usd
CY2022Q1	us-gaap	Noninterest Expense NoninterestExpense	2327000000	usd
CY2023Q1	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	688000000	usd
CY2022Q1	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	754000000	usd
CY2023Q1	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	139000000	usd
CY2022Q1	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	150000000	usd
CY2023Q1	us-gaap	Net Income Loss NetIncomeLoss	549000000	usd
CY2022Q1	us-gaap	Net Income Loss NetIncomeLoss	604000000	usd
CY2023Q1	us-gaap	Net Income Loss Available To Common Stockholders Diluted NetIncomeLossAvailableToCommonStockholdersDiluted	525000000	usd
CY2023Q1	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	525000000	usd
CY2022Q1	us-gaap	Net Income Loss Available To Common Stockholders Diluted NetIncomeLossAvailableToCommonStockholdersDiluted	583000000	usd
CY2022Q1	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	583000000	usd
CY2023Q1	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.54
CY2022Q1	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.59
CY2023Q1	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.52
CY2022Q1	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.57
CY2023Q1	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	341106000	shares
CY2022Q1	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	366542000	shares
CY2023Q1	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	345472000	shares
CY2022Q1	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	372037000	shares
CY2023Q1	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.63
CY2022Q1	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.57
CY2023Q1	us-gaap	Net Income Loss NetIncomeLoss	549000000	usd
CY2022Q1	us-gaap	Net Income Loss NetIncomeLoss	604000000	usd
CY2023Q1	us-gaap	Other Comprehensive Income Loss Foreign Currency Translation Adjustment Tax OtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentTax	-12000000	usd
CY2022Q1	us-gaap	Other Comprehensive Income Loss Foreign Currency Translation Adjustment Tax OtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentTax	10000000	usd
CY2023Q1	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Net Of Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax	130000000	usd
CY2022Q1	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Net Of Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax	-98000000	usd
CY2023Q1	stt	Other Comprehensive Income Loss Change In Net Unrealized Gain Loss On Afs Securities Net Of Reclass And Expected Loss From Otti Related Taxes OtherComprehensiveIncomeLossChangeInNetUnrealizedGainLossOnAfsSecuritiesNetOfReclassAndExpectedLossFromOttiRelatedTaxes	92000000	usd
CY2022Q1	stt	Other Comprehensive Income Loss Change In Net Unrealized Gain Loss On Afs Securities Net Of Reclass And Expected Loss From Otti Related Taxes OtherComprehensiveIncomeLossChangeInNetUnrealizedGainLossOnAfsSecuritiesNetOfReclassAndExpectedLossFromOttiRelatedTaxes	-474000000	usd
CY2023Q1	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax	246000000	usd
CY2022Q1	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax	-1288000000	usd
CY2023Q1	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationTax	19000000	usd
CY2022Q1	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationTax	-72000000	usd
CY2023Q1	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification And Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTax	51000000	usd
CY2022Q1	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification And Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTax	-194000000	usd
CY2023Q1	stt	Other Comprehensive Income Loss Minimum Pension Liability Net Adjustment Tax OtherComprehensiveIncomeLossMinimumPensionLiabilityNetAdjustmentTax	5000000	usd
CY2022Q1	stt	Other Comprehensive Income Loss Minimum Pension Liability Net Adjustment Tax OtherComprehensiveIncomeLossMinimumPensionLiabilityNetAdjustmentTax	6000000	usd
CY2023Q1	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Net Of Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax	-12000000	usd
CY2022Q1	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Net Of Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax	-15000000	usd
CY2023Q1	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	439000000	usd
CY2022Q1	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	-1565000000	usd
CY2023Q1	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	988000000	usd
CY2022Q1	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	-961000000	usd
CY2023Q1	us-gaap	Cash And Due From Banks CashAndDueFromBanks	3698000000	usd
CY2022Q4	us-gaap	Cash And Due From Banks CashAndDueFromBanks	3970000000	usd
CY2023Q1	stt	Interest Bearing Deposits In Banks And Other Financial Institutions Allowance For Credit Loss InterestBearingDepositsInBanksAndOtherFinancialInstitutionsAllowanceForCreditLoss	29000000	usd
CY2022Q4	stt	Interest Bearing Deposits In Banks And Other Financial Institutions Allowance For Credit Loss InterestBearingDepositsInBanksAndOtherFinancialInstitutionsAllowanceForCreditLoss	0	usd
CY2023Q1	us-gaap	Interest Bearing Deposits In Banks InterestBearingDepositsInBanks	87935000000	usd
CY2022Q4	us-gaap	Interest Bearing Deposits In Banks InterestBearingDepositsInBanks	101593000000	usd
CY2023Q1	us-gaap	Securities Purchased Under Agreements To Resell SecuritiesPurchasedUnderAgreementsToResell	1134000000	usd
CY2022Q4	us-gaap	Securities Purchased Under Agreements To Resell SecuritiesPurchasedUnderAgreementsToResell	5215000000	usd
CY2023Q1	us-gaap	Trading Securities TradingSecurities	695000000	usd
CY2022Q4	us-gaap	Trading Securities TradingSecurities	650000000	usd
CY2022Q4	us-gaap	Debt Securities Available For Sale Amortized Cost Allowance For Credit Loss Excluding Accrued Interest DebtSecuritiesAvailableForSaleAmortizedCostAllowanceForCreditLossExcludingAccruedInterest	2000000	usd
CY2023Q1	us-gaap	Debt Securities Available For Sale Amortized Cost Allowance For Credit Loss Excluding Accrued Interest DebtSecuritiesAvailableForSaleAmortizedCostAllowanceForCreditLossExcludingAccruedInterest	2000000	usd
CY2022Q4	us-gaap	Debt Securities Available For Sale Amortized Cost Allowance For Credit Loss Excluding Accrued Interest DebtSecuritiesAvailableForSaleAmortizedCostAllowanceForCreditLossExcludingAccruedInterest	2000000	usd
CY2023Q1	us-gaap	Debt Securities Available For Sale Excluding Accrued Interest DebtSecuritiesAvailableForSaleExcludingAccruedInterest	42841000000	usd
CY2022Q4	us-gaap	Debt Securities Available For Sale Excluding Accrued Interest DebtSecuritiesAvailableForSaleExcludingAccruedInterest	40579000000	usd
CY2023Q1	us-gaap	Debt Securities Held To Maturity Allowance For Credit Loss Excluding Accrued Interest DebtSecuritiesHeldToMaturityAllowanceForCreditLossExcludingAccruedInterest	0	usd
CY2022Q4	us-gaap	Debt Securities Held To Maturity Allowance For Credit Loss Excluding Accrued Interest DebtSecuritiesHeldToMaturityAllowanceForCreditLossExcludingAccruedInterest	0	usd
CY2023Q1	us-gaap	Held To Maturity Securities Fair Value HeldToMaturitySecuritiesFairValue	59139000000	usd
CY2022Q4	us-gaap	Held To Maturity Securities Fair Value HeldToMaturitySecuritiesFairValue	57913000000	usd
CY2023Q1	us-gaap	Debt Securities Held To Maturity Excluding Accrued Interest After Allowance For Credit Loss DebtSecuritiesHeldToMaturityExcludingAccruedInterestAfterAllowanceForCreditLoss	65027000000	usd
CY2022Q4	us-gaap	Debt Securities Held To Maturity Excluding Accrued Interest After Allowance For Credit Loss DebtSecuritiesHeldToMaturityExcludingAccruedInterestAfterAllowanceForCreditLoss	64700000000	usd
CY2023Q1	us-gaap	Financing Receivable Allowance For Credit Loss Excluding Accrued Interest FinancingReceivableAllowanceForCreditLossExcludingAccruedInterest	115000000	usd
CY2022Q4	us-gaap	Financing Receivable Allowance For Credit Loss Excluding Accrued Interest FinancingReceivableAllowanceForCreditLossExcludingAccruedInterest	97000000	usd
CY2023Q1	us-gaap	Financing Receivable Excluding Accrued Interest After Allowance For Credit Loss FinancingReceivableExcludingAccruedInterestAfterAllowanceForCreditLoss	33801000000	usd
CY2022Q4	us-gaap	Financing Receivable Excluding Accrued Interest After Allowance For Credit Loss FinancingReceivableExcludingAccruedInterestAfterAllowanceForCreditLoss	32053000000	usd
CY2023Q1	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	5918000000	usd
CY2022Q4	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	5745000000	usd
CY2023Q1	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	2337000000	usd
CY2022Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	2315000000	usd
CY2023Q1	us-gaap	Accrued Investment Income Receivable AccruedInvestmentIncomeReceivable	3570000000	usd
CY2022Q4	us-gaap	Accrued Investment Income Receivable AccruedInvestmentIncomeReceivable	3434000000	usd
CY2023Q1	us-gaap	Goodwill Goodwill	7530000000	usd
CY2022Q4	us-gaap	Goodwill Goodwill	7495000000	usd
CY2023Q1	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	1493000000	usd
CY2022Q4	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	1544000000	usd
CY2023Q1	us-gaap	Other Assets OtherAssets	40755000000	usd
CY2022Q4	us-gaap	Other Assets OtherAssets	37902000000	usd
CY2023Q1	us-gaap	Assets Assets	290816000000	usd
CY2022Q4	us-gaap	Assets Assets	301450000000	usd
CY2023Q1	us-gaap	Noninterest Bearing Deposit Liabilities NoninterestBearingDepositLiabilities	45856000000	usd
CY2022Q4	us-gaap	Noninterest Bearing Deposit Liabilities NoninterestBearingDepositLiabilities	46755000000	usd
CY2023Q1	us-gaap	Interest Bearing Deposit Liabilities Domestic InterestBearingDepositLiabilitiesDomestic	108623000000	usd
CY2022Q4	us-gaap	Interest Bearing Deposit Liabilities Domestic InterestBearingDepositLiabilitiesDomestic	111384000000	usd
CY2023Q1	us-gaap	Interest Bearing Deposit Liabilities Foreign InterestBearingDepositLiabilitiesForeign	69152000000	usd
CY2022Q4	us-gaap	Interest Bearing Deposit Liabilities Foreign InterestBearingDepositLiabilitiesForeign	77325000000	usd
CY2023Q1	us-gaap	Deposits Deposits	223631000000	usd
CY2022Q4	us-gaap	Deposits Deposits	235464000000	usd
CY2023Q1	us-gaap	Securities Sold Under Agreements To Repurchase SecuritiesSoldUnderAgreementsToRepurchase	3695000000	usd
CY2022Q4	us-gaap	Securities Sold Under Agreements To Repurchase SecuritiesSoldUnderAgreementsToRepurchase	1177000000	usd
CY2023Q1	us-gaap	Other Short Term Borrowings OtherShortTermBorrowings	8000000	usd
CY2022Q4	us-gaap	Other Short Term Borrowings OtherShortTermBorrowings	2097000000	usd
CY2023Q1	us-gaap	Accrued Liabilities Current And Noncurrent AccruedLiabilitiesCurrentAndNoncurrent	22427000000	usd
CY2022Q4	us-gaap	Accrued Liabilities Current And Noncurrent AccruedLiabilitiesCurrentAndNoncurrent	22525000000	usd
CY2023Q1	us-gaap	Long Term Debt And Capital Lease Obligations Including Current Maturities LongTermDebtAndCapitalLeaseObligationsIncludingCurrentMaturities	16305000000	usd
CY2022Q4	us-gaap	Long Term Debt And Capital Lease Obligations Including Current Maturities LongTermDebtAndCapitalLeaseObligationsIncludingCurrentMaturities	14996000000	usd
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CY2023Q1	us-gaap	Preferred Stock No Par Value PreferredStockNoParValue	0
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CY2023Q1	us-gaap	Preferred Stock Shares Authorized PreferredStockSharesAuthorized	3500000	shares
CY2023Q1	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	1
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CY2022Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	750000000	shares
CY2023Q1	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	750000000	shares
CY2023Q1	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	503879642	shares
CY2022Q4	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	503879642	shares
CY2023Q1	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	336461072	shares
CY2022Q4	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	349024167	shares
CY2023Q1	us-gaap	Common Stock Value CommonStockValue	504000000	usd
CY2022Q4	us-gaap	Common Stock Value CommonStockValue	504000000	usd
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CY2022Q4	us-gaap	Additional Paid In Capital AdditionalPaidInCapital	10730000000	usd
CY2023Q1	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	27342000000	usd
CY2022Q4	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	27028000000	usd
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CY2022Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-3711000000	usd
CY2023Q1	us-gaap	Treasury Stock Common Shares TreasuryStockCommonShares	167418570	shares
CY2022Q4	us-gaap	Treasury Stock Common Shares TreasuryStockCommonShares	154855475	shares
CY2023Q1	us-gaap	Treasury Stock Value TreasuryStockValue	12524000000	usd
CY2022Q4	us-gaap	Treasury Stock Value TreasuryStockValue	11336000000	usd
CY2023Q1	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	24750000000	usd
CY2022Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	25191000000	usd
CY2023Q1	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	290816000000	usd
CY2022Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	301450000000	usd
CY2021Q4	us-gaap	Stockholders Equity StockholdersEquity	27363000000	usd
CY2022Q1	us-gaap	Net Income Loss NetIncomeLoss	604000000	usd
CY2022Q1	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	-1565000000	usd
CY2022Q1	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.57
CY2022Q1	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	209000000	usd
CY2022Q1	us-gaap	Dividends Preferred Stock Cash DividendsPreferredStockCash	20000000	usd
CY2022Q1	us-gaap	Stock Issued During Period Value Stock Options Exercised StockIssuedDuringPeriodValueStockOptionsExercised	66000000	usd
CY2022Q1	us-gaap	Stockholders Equity Other StockholdersEquityOther	15000000	usd
CY2022Q1	us-gaap	Stockholders Equity StockholdersEquity	26224000000	usd
CY2022Q4	us-gaap	Stockholders Equity StockholdersEquity	25191000000	usd
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CY2023Q1	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	439000000	usd
CY2023Q1	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.63
CY2023Q1	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	212000000	usd
CY2023Q1	us-gaap	Dividends Preferred Stock Cash DividendsPreferredStockCash	23000000	usd
CY2023Q1	us-gaap	Treasury Stock Value Acquired Par Value Method TreasuryStockValueAcquiredParValueMethod	1262000000	usd
CY2023Q1	us-gaap	Stock Issued During Period Value Stock Options Exercised StockIssuedDuringPeriodValueStockOptionsExercised	69000000	usd
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CY2023Q1	us-gaap	Stockholders Equity StockholdersEquity	24750000000	usd
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CY2022Q1	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	7000000	usd
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CY2022Q1	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	61000000	usd
CY2023Q1	stt	Noncash Adjustments For Depreciation Amortization Accretion NoncashAdjustmentsForDepreciationAmortizationAccretion	171000000	usd
CY2022Q1	stt	Noncash Adjustments For Depreciation Amortization Accretion NoncashAdjustmentsForDepreciationAmortizationAccretion	232000000	usd
CY2023Q1	us-gaap	Realized Investment Gains Losses RealizedInvestmentGainsLosses	0	usd
CY2022Q1	us-gaap	Realized Investment Gains Losses RealizedInvestmentGainsLosses	-1000000	usd
CY2023Q1	us-gaap	Financing Receivable Excluding Accrued Interest Credit Loss Expense Reversal FinancingReceivableExcludingAccruedInterestCreditLossExpenseReversal	44000000	usd
CY2022Q1	us-gaap	Financing Receivable Excluding Accrued Interest Credit Loss Expense Reversal FinancingReceivableExcludingAccruedInterestCreditLossExpenseReversal	0	usd
CY2023Q1	us-gaap	Increase Decrease In Trading Securities IncreaseDecreaseInTradingSecurities	45000000	usd
CY2022Q1	us-gaap	Increase Decrease In Trading Securities IncreaseDecreaseInTradingSecurities	-4000000	usd
CY2023Q1	us-gaap	Increase Decrease In Other Receivables IncreaseDecreaseInOtherReceivables	136000000	usd
CY2022Q1	us-gaap	Increase Decrease In Other Receivables IncreaseDecreaseInOtherReceivables	168000000	usd
CY2023Q1	us-gaap	Increase Decrease In Cash Collateral For Loaned Securities IncreaseDecreaseInCashCollateralForLoanedSecurities	-2962000000	usd
CY2022Q1	us-gaap	Increase Decrease In Cash Collateral For Loaned Securities IncreaseDecreaseInCashCollateralForLoanedSecurities	-187000000	usd
CY2023Q1	stt	Change In Unrealized Gains Losses Related To Financial Instruments ChangeInUnrealizedGainsLossesRelatedToFinancialInstruments	156000000	usd
CY2022Q1	stt	Change In Unrealized Gains Losses Related To Financial Instruments ChangeInUnrealizedGainsLossesRelatedToFinancialInstruments	1075000000	usd
CY2023Q1	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	-282000000	usd
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CY2022Q1	us-gaap	Increase Decrease In Other Operating Liabilities IncreaseDecreaseInOtherOperatingLiabilities	5862000000	usd
CY2023Q1	us-gaap	Other Noncash Income Expense OtherNoncashIncomeExpense	-95000000	usd
CY2022Q1	us-gaap	Other Noncash Income Expense OtherNoncashIncomeExpense	-200000000	usd
CY2023Q1	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	-2862000000	usd
CY2022Q1	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	4586000000	usd
CY2023Q1	us-gaap	Proceeds From Payments For In Interest Bearing Deposits In Banks ProceedsFromPaymentsForInInterestBearingDepositsInBanks	13630000000	usd
CY2022Q1	us-gaap	Proceeds From Payments For In Interest Bearing Deposits In Banks ProceedsFromPaymentsForInInterestBearingDepositsInBanks	2348000000	usd
CY2023Q1	stt	Net Increase Decrease In Federal Funds Sold And Securities Purchased Under Resale Agreements NetIncreaseDecreaseInFederalFundsSoldAndSecuritiesPurchasedUnderResaleAgreements	4082000000	usd
CY2022Q1	stt	Net Increase Decrease In Federal Funds Sold And Securities Purchased Under Resale Agreements NetIncreaseDecreaseInFederalFundsSoldAndSecuritiesPurchasedUnderResaleAgreements	2209000000	usd
CY2023Q1	us-gaap	Proceeds From Sale Of Available For Sale Securities Debt ProceedsFromSaleOfAvailableForSaleSecuritiesDebt	232000000	usd
CY2022Q1	us-gaap	Proceeds From Sale Of Available For Sale Securities Debt ProceedsFromSaleOfAvailableForSaleSecuritiesDebt	1600000000	usd
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CY2022Q1	us-gaap	Proceeds From Maturities Prepayments And Calls Of Available For Sale Securities ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities	4494000000	usd
CY2023Q1	us-gaap	Payments To Acquire Available For Sale Securities Debt PaymentsToAcquireAvailableForSaleSecuritiesDebt	5239000000	usd
CY2022Q1	us-gaap	Payments To Acquire Available For Sale Securities Debt PaymentsToAcquireAvailableForSaleSecuritiesDebt	11689000000	usd
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CY2022Q1	us-gaap	Proceeds From Maturities Prepayments And Calls Of Held To Maturity Securities ProceedsFromMaturitiesPrepaymentsAndCallsOfHeldToMaturitySecurities	3632000000	usd
CY2023Q1	us-gaap	Payments To Acquire Held To Maturity Securities PaymentsToAcquireHeldToMaturitySecurities	1557000000	usd
CY2022Q1	us-gaap	Payments To Acquire Held To Maturity Securities PaymentsToAcquireHeldToMaturitySecurities	4119000000	usd
CY2023Q1	us-gaap	Proceeds From Sale Of Loans Receivable ProceedsFromSaleOfLoansReceivable	273000000	usd
CY2022Q1	us-gaap	Proceeds From Sale Of Loans Receivable ProceedsFromSaleOfLoansReceivable	38000000	usd
CY2023Q1	us-gaap	Payments To Acquire Loans And Leases Held For Investment PaymentsToAcquireLoansAndLeasesHeldForInvestment	1914000000	usd
CY2022Q1	us-gaap	Payments To Acquire Loans And Leases Held For Investment PaymentsToAcquireLoansAndLeasesHeldForInvestment	2648000000	usd
CY2023Q1	us-gaap	Payments To Acquire Other Investments PaymentsToAcquireOtherInvestments	0	usd
CY2022Q1	us-gaap	Payments To Acquire Other Investments PaymentsToAcquireOtherInvestments	71000000	usd
CY2023Q1	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	182000000	usd
CY2022Q1	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	138000000	usd
CY2023Q1	us-gaap	Payments For Proceeds From Other Investing Activities PaymentsForProceedsFromOtherInvestingActivities	-188000000	usd
CY2022Q1	us-gaap	Payments For Proceeds From Other Investing Activities PaymentsForProceedsFromOtherInvestingActivities	-8000000	usd
CY2023Q1	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	14312000000	usd
CY2022Q1	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-4336000000	usd
CY2023Q1	us-gaap	Increase Decrease In Time Deposits IncreaseDecreaseInTimeDeposits	728000000	usd
CY2022Q1	us-gaap	Increase Decrease In Time Deposits IncreaseDecreaseInTimeDeposits	-1298000000	usd
CY2023Q1	us-gaap	Increase Decrease In Other Deposits IncreaseDecreaseInOtherDeposits	-12560000000	usd
CY2022Q1	us-gaap	Increase Decrease In Other Deposits IncreaseDecreaseInOtherDeposits	-2696000000	usd
CY2023Q1	stt	Securities Sold Under Repurchase Agreement Net SecuritiesSoldUnderRepurchaseAgreementNet	2518000000	usd
CY2022Q1	stt	Securities Sold Under Repurchase Agreement Net SecuritiesSoldUnderRepurchaseAgreementNet	2702000000	usd
CY2023Q1	stt	Net Decrease Increase In Other Short Term Borrowings NetDecreaseIncreaseInOtherShortTermBorrowings	-2089000000	usd
CY2022Q1	stt	Net Decrease Increase In Other Short Term Borrowings NetDecreaseIncreaseInOtherShortTermBorrowings	-111000000	usd
CY2023Q1	us-gaap	Proceeds From Issuance Of Long Term Debt ProceedsFromIssuanceOfLongTermDebt	1244000000	usd
CY2022Q1	us-gaap	Proceeds From Issuance Of Long Term Debt ProceedsFromIssuanceOfLongTermDebt	1492000000	usd
CY2023Q1	us-gaap	Repayments Of Long Term Debt And Capital Securities RepaymentsOfLongTermDebtAndCapitalSecurities	11000000	usd
CY2022Q1	us-gaap	Repayments Of Long Term Debt And Capital Securities RepaymentsOfLongTermDebtAndCapitalSecurities	765000000	usd
CY2023Q1	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	1250000000	usd
CY2022Q1	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	0	usd
CY2023Q1	stt	Repurchases Of Common Stock For Employee Tax Withholding RepurchasesOfCommonStockForEmployeeTaxWithholding	59000000	usd
CY2022Q1	stt	Repurchases Of Common Stock For Employee Tax Withholding RepurchasesOfCommonStockForEmployeeTaxWithholding	0	usd
CY2023Q1	us-gaap	Payments Of Dividends PaymentsOfDividends	243000000	usd
CY2022Q1	us-gaap	Payments Of Dividends PaymentsOfDividends	229000000	usd
CY2023Q1	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-11722000000	usd
CY2022Q1	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-905000000	usd
CY2023Q1	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	-272000000	usd
CY2022Q1	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	-655000000	usd
CY2022Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	3970000000	usd
CY2021Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	3631000000	usd
CY2023Q1	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	3698000000	usd
CY2022Q1	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	2976000000	usd
CY2023Q1	stt	Interest Paid Received InterestPaidReceived	1212000000	usd
CY2022Q1	stt	Interest Paid Received InterestPaidReceived	-22000000	usd
CY2023Q1	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	75000000	usd
CY2022Q1	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	121000000	usd
CY2023Q1	us-gaap	Use Of Estimates UseOfEstimates	<div style="margin-top:3pt;text-align:justify;text-indent:22.5pt"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">The preparation of consolidated financial statements in conformity with U.S. GAAP requires management to make estimates and assumptions in the application of certain of our significant accounting policies that may materially affect the reported amounts of assets, liabilities, equity, revenue and expenses. As a result of unanticipated events or circumstances, actual results could differ from those estimates. These accounting estimates reflect the best judgment of management, but actual results could differ.</span></div><div style="margin-top:3pt;text-align:justify;text-indent:22.5pt"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">Our consolidated statement of condition as of December 31, 2022 included in the accompanying consolidated financial statements was derived from the audited financial statements as of that date, but does not include all notes required by U.S. GAAP for a complete set of consolidated financial statements.</span></div>
CY2023Q1	stt	Derivative Asset Collateral Obligationto Return Securitiesand Cash Offset DerivativeAssetCollateralObligationtoReturnSecuritiesandCashOffset	1810000000	usd
CY2023Q1	stt	Derivative Liability Collateral Rightto Reclaim Securitiesand Cash Offset DerivativeLiabilityCollateralRighttoReclaimSecuritiesandCashOffset	1230000000	usd
CY2022Q4	stt	Derivative Asset Collateral Obligationto Return Securitiesand Cash Offset DerivativeAssetCollateralObligationtoReturnSecuritiesandCashOffset	3300000000	usd
CY2022Q4	stt	Derivative Liability Collateral Rightto Reclaim Securitiesand Cash Offset DerivativeLiabilityCollateralRighttoReclaimSecuritiesandCashOffset	2730000000	usd
CY2022Q1	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Transfers Into Level3 FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetTransfersIntoLevel3	0	usd
CY2022Q1	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Transfers Out Of Level3 FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetTransfersOutOfLevel3	0	usd
CY2023Q1	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Transfers Into Level3 FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetTransfersIntoLevel3	0	usd
CY2023Q1	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Transfers Out Of Level3 FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetTransfersOutOfLevel3	0	usd
CY2022Q4	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Value FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetValue	4000000	usd
CY2023Q1	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Gain Loss Included In Earnings1 FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetGainLossIncludedInEarnings1	-2000000	usd
CY2023Q1	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Gain Loss Included In Other Comprehensive Income Loss FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetGainLossIncludedInOtherComprehensiveIncomeLoss	0	usd
CY2023Q1	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Purchases FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetPurchases	5000000	usd
CY2023Q1	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Sales FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetSales	0	usd
CY2023Q1	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Settlements FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetSettlements	3000000	usd
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CY2023Q1	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Transfers Out Of Level3 FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetTransfersOutOfLevel3	0	usd
CY2023Q1	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Value FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetValue	4000000	usd
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CY2022Q1	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Gain Loss Included In Earnings1 FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetGainLossIncludedInEarnings1	3000000	usd
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CY2022Q1	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Settlements FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetSettlements	0	usd
CY2022Q1	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Transfers Into Level3 FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetTransfersIntoLevel3	0	usd
CY2022Q1	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Transfers Out Of Level3 FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetTransfersOutOfLevel3	0	usd
CY2022Q1	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Value FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetValue	6000000	usd
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CY2023Q1	us-gaap	Debt Securities Available For Sale Amortized Cost Excluding Accrued Interest After Allowance For Credit Loss DebtSecuritiesAvailableForSaleAmortizedCostExcludingAccruedInterestAfterAllowanceForCreditLoss	43851000000	usd
CY2023Q1	us-gaap	Available For Sale Debt Securities Accumulated Gross Unrealized Gain Before Tax AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax	27000000	usd
CY2023Q1	us-gaap	Available For Sale Debt Securities Accumulated Gross Unrealized Loss Before Tax AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax	1037000000	usd
CY2023Q1	us-gaap	Debt Securities Available For Sale Excluding Accrued Interest DebtSecuritiesAvailableForSaleExcludingAccruedInterest	42841000000	usd
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CY2022Q4	us-gaap	Available For Sale Debt Securities Accumulated Gross Unrealized Gain Before Tax AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax	14000000	usd
CY2022Q4	us-gaap	Available For Sale Debt Securities Accumulated Gross Unrealized Loss Before Tax AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax	1293000000	usd
CY2022Q4	us-gaap	Debt Securities Available For Sale Excluding Accrued Interest DebtSecuritiesAvailableForSaleExcludingAccruedInterest	40579000000	usd
CY2022Q4	us-gaap	Debt Securities Available For Sale Amortized Cost Allowance For Credit Loss Excluding Accrued Interest DebtSecuritiesAvailableForSaleAmortizedCostAllowanceForCreditLossExcludingAccruedInterest	2000000	usd
CY2023Q1	us-gaap	Debt Securities Available For Sale Amortized Cost Allowance For Credit Loss Excluding Accrued Interest DebtSecuritiesAvailableForSaleAmortizedCostAllowanceForCreditLossExcludingAccruedInterest	2000000	usd
CY2023Q1	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position Less Than12 Months DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12Months	10491000000	usd
CY2023Q1	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position Less Than12 Months Accumulated Loss DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss	95000000	usd
CY2023Q1	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position12 Months Or Longer DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLonger	26938000000	usd
CY2023Q1	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position12 Months Or Longer Accumulated Loss DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss	942000000	usd
CY2023Q1	us-gaap	Debt Securities Available For Sale Unrealized Loss Position DebtSecuritiesAvailableForSaleUnrealizedLossPosition	37429000000	usd
CY2023Q1	us-gaap	Debt Securities Available For Sale Unrealized Loss Position Accumulated Loss DebtSecuritiesAvailableForSaleUnrealizedLossPositionAccumulatedLoss	1037000000	usd
CY2022Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position Less Than12 Months DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12Months	19429000000	usd
CY2022Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position Less Than12 Months Accumulated Loss DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss	369000000	usd
CY2022Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position12 Months Or Longer DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLonger	18093000000	usd
CY2022Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position12 Months Or Longer Accumulated Loss DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss	924000000	usd
CY2022Q4	us-gaap	Debt Securities Available For Sale Unrealized Loss Position DebtSecuritiesAvailableForSaleUnrealizedLossPosition	37522000000	usd
CY2022Q4	us-gaap	Debt Securities Available For Sale Unrealized Loss Position Accumulated Loss DebtSecuritiesAvailableForSaleUnrealizedLossPositionAccumulatedLoss	1293000000	usd
CY2023Q1	us-gaap	Available For Sale Securities Debt Maturities Within One Year Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearAmortizedCost	8638000000	usd
CY2023Q1	us-gaap	Available For Sale Securities Debt Maturities Within One Year Fair Value AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearFairValue	8550000000	usd
CY2023Q1	us-gaap	Available For Sale Securities Debt Maturities After One Through Five Years Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsAmortizedCost	18151000000	usd
CY2023Q1	us-gaap	Available For Sale Securities Debt Maturities After One Through Five Years Fair Value AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsFairValue	17480000000	usd
CY2023Q1	us-gaap	Available For Sale Securities Debt Maturities After Five Through Ten Years Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesAfterFiveThroughTenYearsAmortizedCost	11912000000	usd
CY2023Q1	us-gaap	Available For Sale Securities Debt Maturities After Five Through Ten Years Fair Value AvailableForSaleSecuritiesDebtMaturitiesAfterFiveThroughTenYearsFairValue	11781000000	usd
CY2023Q1	us-gaap	Available For Sale Securities Debt Maturities After Ten Years Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesAfterTenYearsAmortizedCost	5150000000	usd
CY2023Q1	us-gaap	Available For Sale Securities Debt Maturities After Ten Years Fair Value AvailableForSaleSecuritiesDebtMaturitiesAfterTenYearsFairValue	5030000000	usd
CY2023Q1	us-gaap	Debt Securities Available For Sale Amortized Cost Excluding Accrued Interest After Allowance For Credit Loss DebtSecuritiesAvailableForSaleAmortizedCostExcludingAccruedInterestAfterAllowanceForCreditLoss	43851000000	usd
CY2023Q1	us-gaap	Debt Securities Available For Sale Excluding Accrued Interest DebtSecuritiesAvailableForSaleExcludingAccruedInterest	42841000000	usd
CY2023Q1	stt	Percentageof Portfolio Considered Investment Grade PercentageofPortfolioConsideredInvestmentGrade	0.99
CY2022Q4	us-gaap	Debt Securities Held To Maturity Allowance For Credit Loss Excluding Accrued Interest DebtSecuritiesHeldToMaturityAllowanceForCreditLossExcludingAccruedInterest	0	usd
CY2023Q1	us-gaap	Debt Securities Held To Maturity Allowance For Credit Loss Excluding Accrued Interest DebtSecuritiesHeldToMaturityAllowanceForCreditLossExcludingAccruedInterest	0	usd
CY2022Q4	us-gaap	Debt Securities Available For Sale Amortized Cost Allowance For Credit Loss Excluding Accrued Interest DebtSecuritiesAvailableForSaleAmortizedCostAllowanceForCreditLossExcludingAccruedInterest	2000000	usd
CY2023Q1	us-gaap	Debt Securities Available For Sale Amortized Cost Allowance For Credit Loss Excluding Accrued Interest DebtSecuritiesAvailableForSaleAmortizedCostAllowanceForCreditLossExcludingAccruedInterest	2000000	usd
CY2023Q1	us-gaap	Debt Securities Available For Sale Excluding Accrued Interest Allowance For Credit Loss Not Previously Recorded DebtSecuritiesAvailableForSaleExcludingAccruedInterestAllowanceForCreditLossNotPreviouslyRecorded	0	usd
CY2023Q1	us-gaap	Debt Securities Available For Sale Excluding Accrued Interest Allowance For Credit Loss Writeoff DebtSecuritiesAvailableForSaleExcludingAccruedInterestAllowanceForCreditLossWriteoff	0	usd
CY2023Q1	us-gaap	Marketable Securities Unrealized Gain Loss MarketableSecuritiesUnrealizedGainLoss	-6960000000	usd
CY2023Q1	stt	Available For Sale And Held To Maturity Securities In Unrealized Loss Positions Qualitative Disclosure Number Of Positions AvailableForSaleAndHeldToMaturitySecuritiesInUnrealizedLossPositionsQualitativeDisclosureNumberOfPositions	2061	security
CY2023Q1	stt	Loans And Leases Receivable Number Of Loans And Leases Segments LoansAndLeasesReceivableNumberOfLoansAndLeasesSegments	2	loansegment
CY2023Q1	us-gaap	Financing Receivable Excluding Accrued Interest Before Allowance For Credit Loss FinancingReceivableExcludingAccruedInterestBeforeAllowanceForCreditLoss	33916000000	usd
CY2022Q4	us-gaap	Financing Receivable Excluding Accrued Interest Before Allowance For Credit Loss FinancingReceivableExcludingAccruedInterestBeforeAllowanceForCreditLoss	32150000000	usd
CY2023Q1	us-gaap	Financing Receivable Allowance For Credit Loss Excluding Accrued Interest FinancingReceivableAllowanceForCreditLossExcludingAccruedInterest	115000000	usd
CY2022Q4	us-gaap	Financing Receivable Allowance For Credit Loss Excluding Accrued Interest FinancingReceivableAllowanceForCreditLossExcludingAccruedInterest	97000000	usd
CY2023Q1	us-gaap	Financing Receivable Excluding Accrued Interest After Allowance For Credit Loss FinancingReceivableExcludingAccruedInterestAfterAllowanceForCreditLoss	33801000000	usd
CY2022Q4	us-gaap	Financing Receivable Excluding Accrued Interest After Allowance For Credit Loss FinancingReceivableExcludingAccruedInterestAfterAllowanceForCreditLoss	32053000000	usd
CY2023Q1	stt	Financing Receivable Recorded Investment Nonaccrual Status Numberof Loans FinancingReceivableRecordedInvestmentNonaccrualStatusNumberofLoans	1	loan
CY2023Q1	us-gaap	Financing Receivable Recorded Investment Nonaccrual Status FinancingReceivableRecordedInvestmentNonaccrualStatus	45000000	usd
CY2022Q4	stt	Financing Receivable Recorded Investment Nonaccrual Status Numberof Loans FinancingReceivableRecordedInvestmentNonaccrualStatusNumberofLoans	0	loan
CY2023Q1	us-gaap	Loans Receivable Held For Sale Amount LoansReceivableHeldForSaleAmount	12000000	usd
CY2023Q1	us-gaap	Financing Receivable Excluding Accrued Interest Allowance For Credit Loss Writeoff FinancingReceivableExcludingAccruedInterestAllowanceForCreditLossWriteoff	3000000	usd
CY2023Q1	stt	Investment Grade Loans InvestmentGradeLoans	0.86
CY2023Q1	stt	Speculative Grade Loans SpeculativeGradeLoans	0.12
CY2023Q1	stt	Speculative Senior Secured Loanswith B Bor B Rating SpeculativeSeniorSecuredLoanswithBBorBRating	0.95
CY2023Q1	stt	Financing Receivable Excluding Accrued Interest Before Allowance For Credit Loss Excluding Held For Sale Receivables FinancingReceivableExcludingAccruedInterestBeforeAllowanceForCreditLossExcludingHeldForSaleReceivables	33904000000	usd
CY2022Q4	stt	Financing Receivable Excluding Accrued Interest Before Allowance For Credit Loss Excluding Held For Sale Receivables FinancingReceivableExcludingAccruedInterestBeforeAllowanceForCreditLossExcludingHeldForSaleReceivables	32145000000	usd
CY2023Q1	us-gaap	Loans Receivable Held For Sale Amount LoansReceivableHeldForSaleAmount	12000000	usd
CY2022Q4	us-gaap	Loans Receivable Held For Sale Amount LoansReceivableHeldForSaleAmount	5000000	usd
CY2023Q1	us-gaap	Financing Receivable Excluding Accrued Interest Year One Originated Current Fiscal Year FinancingReceivableExcludingAccruedInterestYearOneOriginatedCurrentFiscalYear	4071000000	usd
CY2023Q1	us-gaap	Financing Receivable Excluding Accrued Interest Year Two Originated Fiscal Year Before Current Fiscal Year FinancingReceivableExcludingAccruedInterestYearTwoOriginatedFiscalYearBeforeCurrentFiscalYear	3039000000	usd
CY2023Q1	us-gaap	Financing Receivable Excluding Accrued Interest Year Three Originated Two Years Before Current Fiscal Year FinancingReceivableExcludingAccruedInterestYearThreeOriginatedTwoYearsBeforeCurrentFiscalYear	4944000000	usd
CY2023Q1	us-gaap	Financing Receivable Excluding Accrued Interest Year Four Originated Three Years Before Current Fiscal Year FinancingReceivableExcludingAccruedInterestYearFourOriginatedThreeYearsBeforeCurrentFiscalYear	459000000	usd
CY2023Q1	us-gaap	Financing Receivable Excluding Accrued Interest Year Five Originated Four Years Before Current Fiscal Year FinancingReceivableExcludingAccruedInterestYearFiveOriginatedFourYearsBeforeCurrentFiscalYear	1642000000	usd
CY2023Q1	us-gaap	Financing Receivable Excluding Accrued Interest Originated More Than Five Years Before Current Fiscal Year FinancingReceivableExcludingAccruedInterestOriginatedMoreThanFiveYearsBeforeCurrentFiscalYear	1679000000	usd
CY2023Q1	us-gaap	Financing Receivable Excluding Accrued Interest Revolving FinancingReceivableExcludingAccruedInterestRevolving	18070000000	usd
CY2023Q1	stt	Financing Receivable Excluding Accrued Interest Before Allowance For Credit Loss Excluding Held For Sale Receivables FinancingReceivableExcludingAccruedInterestBeforeAllowanceForCreditLossExcludingHeldForSaleReceivables	33904000000	usd
CY2023Q1	us-gaap	Financing Receivable Accrued Interest Before Allowance For Credit Loss FinancingReceivableAccruedInterestBeforeAllowanceForCreditLoss	268000000	usd
CY2023Q1	us-gaap	Loans Receivable Held For Sale Amount LoansReceivableHeldForSaleAmount	12000000	usd
CY2022Q4	us-gaap	Financing Receivable Excluding Accrued Interest Year One Originated Current Fiscal Year FinancingReceivableExcludingAccruedInterestYearOneOriginatedCurrentFiscalYear	5839000000	usd
CY2022Q4	us-gaap	Financing Receivable Excluding Accrued Interest Year Two Originated Fiscal Year Before Current Fiscal Year FinancingReceivableExcludingAccruedInterestYearTwoOriginatedFiscalYearBeforeCurrentFiscalYear	5104000000	usd
CY2022Q4	us-gaap	Financing Receivable Excluding Accrued Interest Year Three Originated Two Years Before Current Fiscal Year FinancingReceivableExcludingAccruedInterestYearThreeOriginatedTwoYearsBeforeCurrentFiscalYear	512000000	usd
CY2022Q4	us-gaap	Financing Receivable Excluding Accrued Interest Year Four Originated Three Years Before Current Fiscal Year FinancingReceivableExcludingAccruedInterestYearFourOriginatedThreeYearsBeforeCurrentFiscalYear	1636000000	usd
CY2022Q4	us-gaap	Financing Receivable Excluding Accrued Interest Year Five Originated Four Years Before Current Fiscal Year FinancingReceivableExcludingAccruedInterestYearFiveOriginatedFourYearsBeforeCurrentFiscalYear	1092000000	usd
CY2022Q4	us-gaap	Financing Receivable Excluding Accrued Interest Originated More Than Five Years Before Current Fiscal Year FinancingReceivableExcludingAccruedInterestOriginatedMoreThanFiveYearsBeforeCurrentFiscalYear	668000000	usd
CY2022Q4	us-gaap	Financing Receivable Excluding Accrued Interest Revolving FinancingReceivableExcludingAccruedInterestRevolving	17294000000	usd
CY2022Q4	stt	Financing Receivable Excluding Accrued Interest Before Allowance For Credit Loss Excluding Held For Sale Receivables FinancingReceivableExcludingAccruedInterestBeforeAllowanceForCreditLossExcludingHeldForSaleReceivables	32145000000	usd
CY2022Q4	us-gaap	Financing Receivable Accrued Interest Before Allowance For Credit Loss FinancingReceivableAccruedInterestBeforeAllowanceForCreditLoss	200000000	usd
CY2022Q4	us-gaap	Loans Receivable Held For Sale Amount LoansReceivableHeldForSaleAmount	5000000	usd
CY2022Q4	us-gaap	Debt Securities Available For Sale Amortized Cost Allowance For Credit Loss Excluding Accrued Interest DebtSecuritiesAvailableForSaleAmortizedCostAllowanceForCreditLossExcludingAccruedInterest	2000000	usd
CY2023Q1	us-gaap	Debt Securities Available For Sale Excluding Accrued Interest Allowance For Credit Loss Writeoff DebtSecuritiesAvailableForSaleExcludingAccruedInterestAllowanceForCreditLossWriteoff	0	usd
CY2023Q1	us-gaap	Debt Securities Available For Sale Excluding Accrued Interest Allowance For Credit Loss Not Previously Recorded DebtSecuritiesAvailableForSaleExcludingAccruedInterestAllowanceForCreditLossNotPreviouslyRecorded	0	usd
CY2023Q1	us-gaap	Debt Securities Available For Sale Amortized Cost Allowance For Credit Loss Excluding Accrued Interest DebtSecuritiesAvailableForSaleAmortizedCostAllowanceForCreditLossExcludingAccruedInterest	2000000	usd
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CY2022Q1	us-gaap	Debt Securities Held To Maturity Excluding Accrued Interest Allowance For Credit Loss Writeoff DebtSecuritiesHeldToMaturityExcludingAccruedInterestAllowanceForCreditLossWriteoff	0	usd
CY2022Q1	us-gaap	Debt Securities Held To Maturity Excluding Accrued Interest Credit Loss Expense Reversal DebtSecuritiesHeldToMaturityExcludingAccruedInterestCreditLossExpenseReversal	0	usd
CY2022Q1	us-gaap	Debt Securities Held To Maturity Allowance For Credit Loss Excluding Accrued Interest DebtSecuritiesHeldToMaturityAllowanceForCreditLossExcludingAccruedInterest	2000000	usd
CY2023Q1	us-gaap	Financing Receivable Excluding Accrued Interest Credit Loss Expense Reversal FinancingReceivableExcludingAccruedInterestCreditLossExpenseReversal	44000000	usd
CY2023Q1	stt	Financing Receivable Excluding Accrued Interest Credit Loss Expense Reversal Episodic FinancingReceivableExcludingAccruedInterestCreditLossExpenseReversalEpisodic	29000000	usd
CY2022Q1	us-gaap	Financing Receivable Excluding Accrued Interest Credit Loss Expense Reversal FinancingReceivableExcludingAccruedInterestCreditLossExpenseReversal	0	usd
CY2021Q4	us-gaap	Goodwill Goodwill	7621000000	usd
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CY2022	us-gaap	Goodwill Translation And Purchase Accounting Adjustments GoodwillTranslationAndPurchaseAccountingAdjustments	-129000000	usd
CY2022Q4	us-gaap	Goodwill Goodwill	7495000000	usd
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CY2023Q1	us-gaap	Goodwill Translation And Purchase Accounting Adjustments GoodwillTranslationAndPurchaseAccountingAdjustments	35000000	usd
CY2023Q1	us-gaap	Goodwill Goodwill	7530000000	usd
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CY2022	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	238000000	usd
CY2022	us-gaap	Finite Lived Intangible Assets Foreign Currency Translation Gain Loss FiniteLivedIntangibleAssetsForeignCurrencyTranslationGainLoss	-34000000	usd
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CY2023Q1	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	60000000	usd
CY2023Q1	us-gaap	Finite Lived Intangible Assets Foreign Currency Translation Gain Loss FiniteLivedIntangibleAssetsForeignCurrencyTranslationGainLoss	9000000	usd
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CY2023Q1	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	1493000000	usd
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CY2022Q4	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	1544000000	usd
CY2023Q1	stt	Securities Borrowed Subject To Master Netting Arrangements SecuritiesBorrowedSubjectToMasterNettingArrangements	21627000000	usd
CY2022Q4	stt	Securities Borrowed Subject To Master Netting Arrangements SecuritiesBorrowedSubjectToMasterNettingArrangements	16489000000	usd
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CY2023Q1	us-gaap	Equity Method Investments EquityMethodInvestments	3025000000	usd
CY2022Q4	us-gaap	Equity Method Investments EquityMethodInvestments	3245000000	usd
CY2023Q1	us-gaap	Deferred Income Tax Assets Net DeferredIncomeTaxAssetsNet	989000000	usd
CY2022Q4	us-gaap	Deferred Income Tax Assets Net DeferredIncomeTaxAssetsNet	1127000000	usd
CY2023Q1	us-gaap	Prepaid Expense Current And Noncurrent PrepaidExpenseCurrentAndNoncurrent	679000000	usd
CY2022Q4	us-gaap	Prepaid Expense Current And Noncurrent PrepaidExpenseCurrentAndNoncurrent	558000000	usd
CY2023Q1	stt	Receivable For Security Settlement ReceivableForSecuritySettlement	536000000	usd
CY2022Q4	stt	Receivable For Security Settlement ReceivableForSecuritySettlement	383000000	usd
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CY2023Q1	us-gaap	Income Tax Receivable IncomeTaxReceivable	273000000	usd
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CY2022Q4	us-gaap	Deposits With Clearing Organizations And Others Securities DepositsWithClearingOrganizationsAndOthersSecurities	62000000	usd
CY2023Q1	us-gaap	Other Assets Miscellaneous OtherAssetsMiscellaneous	1218000000	usd
CY2022Q4	us-gaap	Other Assets Miscellaneous OtherAssetsMiscellaneous	1753000000	usd
CY2023Q1	us-gaap	Other Assets OtherAssets	40755000000	usd
CY2022Q4	us-gaap	Other Assets OtherAssets	37902000000	usd
CY2023Q1	us-gaap	Equity Securities Without Readily Determinable Fair Value Amount EquitySecuritiesWithoutReadilyDeterminableFairValueAmount	176000000	usd
CY2022Q4	us-gaap	Equity Securities Without Readily Determinable Fair Value Amount EquitySecuritiesWithoutReadilyDeterminableFairValueAmount	179000000	usd
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CY2023Q1	us-gaap	Advances To Affiliate AdvancesToAffiliate	505000000	usd
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CY2023Q1	us-gaap	Cash Flow Hedge Gain Loss To Be Reclassified Within Twelve Months CashFlowHedgeGainLossToBeReclassifiedWithinTwelveMonths	209000000	usd
CY2023Q1	us-gaap	Maximum Length Of Time Hedged In Cash Flow Hedge1 MaximumLengthOfTimeHedgedInCashFlowHedge1	P5Y
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CY2022Q4	us-gaap	Prepayable Financial Asset Closed Portfolio Last Of Layer Amortized Cost PrepayableFinancialAssetClosedPortfolioLastOfLayerAmortizedCost	64000000	usd
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CY2022Q1	us-gaap	Change In Unrealized Gain Loss On Fair Value Hedging Instruments1 ChangeInUnrealizedGainLossOnFairValueHedgingInstruments1	-33000000	usd
CY2023Q1	us-gaap	Change In Unrealized Gain Loss On Hedged Item In Fair Value Hedge1 ChangeInUnrealizedGainLossOnHedgedItemInFairValueHedge1	5000000	usd
CY2022Q1	us-gaap	Change In Unrealized Gain Loss On Hedged Item In Fair Value Hedge1 ChangeInUnrealizedGainLossOnHedgedItemInFairValueHedge1	33000000	usd
CY2023Q1	stt	Other Comprehensive Income Loss Securities Available For Sale Designated In Fair Value Hedges Unrealized Holding Gain Loss Arising During Period After Tax OtherComprehensiveIncomeLossSecuritiesAvailableForSaleDesignatedInFairValueHedgesUnrealizedHoldingGainLossArisingDuringPeriodAfterTax	-81000000	usd
CY2022Q1	stt	Other Comprehensive Income Loss Securities Available For Sale Designated In Fair Value Hedges Unrealized Holding Gain Loss Arising During Period After Tax OtherComprehensiveIncomeLossSecuritiesAvailableForSaleDesignatedInFairValueHedgesUnrealizedHoldingGainLossArisingDuringPeriodAfterTax	157000000	usd
CY2023Q1	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Before Reclassification And Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationAndTax	19000000	usd
CY2022Q1	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Before Reclassification And Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationAndTax	-244000000	usd
CY2023Q1	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Reclassification Before Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationBeforeTax	-51000000	usd
CY2022Q1	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Reclassification Before Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationBeforeTax	22000000	usd
CY2023Q1	us-gaap	Other Comprehensive Income Loss Net Investment Hedge Gain Loss Before Reclassification And Tax OtherComprehensiveIncomeLossNetInvestmentHedgeGainLossBeforeReclassificationAndTax	-41000000	usd
CY2022Q1	us-gaap	Other Comprehensive Income Loss Net Investment Hedge Gain Loss Before Reclassification And Tax OtherComprehensiveIncomeLossNetInvestmentHedgeGainLossBeforeReclassificationAndTax	64000000	usd
CY2023Q1	us-gaap	Other Comprehensive Income Loss Net Investment Hedge Gain Loss Reclassification Before Tax OtherComprehensiveIncomeLossNetInvestmentHedgeGainLossReclassificationBeforeTax	0	usd
CY2022Q1	us-gaap	Other Comprehensive Income Loss Net Investment Hedge Gain Loss Reclassification Before Tax OtherComprehensiveIncomeLossNetInvestmentHedgeGainLossReclassificationBeforeTax	0	usd
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CY2022Q1	stt	Other Comprehensive Income Loss Derivative Before Reclassification And Tax OtherComprehensiveIncomeLossDerivativeBeforeReclassificationAndTax	-180000000	usd
CY2023Q1	stt	Other Comprehensive Income Loss Derivative Gain Loss Reclassificationbefore Tax OtherComprehensiveIncomeLossDerivativeGainLossReclassificationbeforeTax	-51000000	usd
CY2022Q1	stt	Other Comprehensive Income Loss Derivative Gain Loss Reclassificationbefore Tax OtherComprehensiveIncomeLossDerivativeGainLossReclassificationbeforeTax	22000000	usd
CY2023Q1	us-gaap	Fair Value Of Securities Received As Collateral That Can Be Resold Or Repledged FairValueOfSecuritiesReceivedAsCollateralThatCanBeResoldOrRepledged	6450000000	usd
CY2022Q4	us-gaap	Fair Value Of Securities Received As Collateral That Can Be Resold Or Repledged FairValueOfSecuritiesReceivedAsCollateralThatCanBeResoldOrRepledged	8140000000	usd
CY2023Q1	us-gaap	Fair Value Of Securities Received As Collateral That Have Been Resold Or Repledged FairValueOfSecuritiesReceivedAsCollateralThatHaveBeenResoldOrRepledged	3000000000	usd
CY2022Q4	us-gaap	Fair Value Of Securities Received As Collateral That Have Been Resold Or Repledged FairValueOfSecuritiesReceivedAsCollateralThatHaveBeenResoldOrRepledged	3630000000	usd
CY2023Q1	stt	Derivative Asset Collateral Obligationto Return Securitiesand Cash Offset DerivativeAssetCollateralObligationtoReturnSecuritiesandCashOffset	1810000000	usd
CY2023Q1	stt	Derivative Asset Collateral Obligationto Return Securitiesand Cash Offset DerivativeAssetCollateralObligationtoReturnSecuritiesandCashOffset	1810000000	usd
CY2023Q1	stt	Derivative Collateral Obligationto Return Securitiesand Cash DerivativeCollateralObligationtoReturnSecuritiesandCash	1187000000	usd
CY2023Q1	stt	Derivative Collateral Obligationto Return Securitiesand Cash Netof Offset DerivativeCollateralObligationtoReturnSecuritiesandCashNetofOffset	2997000000	usd
CY2023Q1	us-gaap	Derivative Fair Value Of Derivative Asset DerivativeFairValueOfDerivativeAsset	15997000000	usd
CY2023Q1	us-gaap	Derivative Asset Fair Value Gross Liability DerivativeAssetFairValueGrossLiability	11336000000	usd
CY2023Q1	us-gaap	Derivative Fair Value Of Derivative Asset Amount Not Offset Against Collateral DerivativeFairValueOfDerivativeAssetAmountNotOffsetAgainstCollateral	4661000000	usd
CY2023Q1	stt	Derivative Collateral Obligationto Return Securitiesand Cash DerivativeCollateralObligationtoReturnSecuritiesandCash	1187000000	usd
CY2023Q1	us-gaap	Derivative Fair Value Of Derivative Asset Amount Offset Against Collateral DerivativeFairValueOfDerivativeAssetAmountOffsetAgainstCollateral	3474000000	usd
CY2023Q1	stt	Reverse Repurchase Agreements And Securities Borrowing Fair Value Gross Asset ReverseRepurchaseAgreementsAndSecuritiesBorrowingFairValueGrossAsset	212605000000	usd
CY2023Q1	stt	Reverse Repurchase Agreements And Securities Borrowed Liability ReverseRepurchaseAgreementsAndSecuritiesBorrowedLiability	189844000000	usd
CY2023Q1	stt	Reverse Repurchase Agreements And Securities Borrowed Fair Value Amount Not Offset Against Collateral ReverseRepurchaseAgreementsAndSecuritiesBorrowedFairValueAmountNotOffsetAgainstCollateral	22761000000	usd
CY2023Q1	stt	Reverse Repurchase Agreements And Securities Borrowed Collateral Obligation To Return Cash ReverseRepurchaseAgreementsAndSecuritiesBorrowedCollateralObligationToReturnCash	21927000000	usd
CY2023Q1	stt	Reverse Repurchase Agreements And Securities Borrowed Amount Offset Against Collateral ReverseRepurchaseAgreementsAndSecuritiesBorrowedAmountOffsetAgainstCollateral	834000000	usd
CY2023Q1	us-gaap	Derivative Asset Securities Purchased Under Agreements To Resell Securities Borrowed Gross DerivativeAssetSecuritiesPurchasedUnderAgreementsToResellSecuritiesBorrowedGross	228602000000	usd
CY2023Q1	us-gaap	Derivative Asset Securities Purchased Under Agreements To Resell Securities Borrowed Liability DerivativeAssetSecuritiesPurchasedUnderAgreementsToResellSecuritiesBorrowedLiability	201180000000	usd
CY2023Q1	stt	Derivative Asset Reverse Repurchase Agreements And Securities Borrowed Not Offset Against Collateral DerivativeAssetReverseRepurchaseAgreementsAndSecuritiesBorrowedNotOffsetAgainstCollateral	27422000000	usd
CY2023Q1	us-gaap	Derivative Asset Securities Purchased Under Agreements To Resell Securities Borrowed Collateral Obligation To Return Cash DerivativeAssetSecuritiesPurchasedUnderAgreementsToResellSecuritiesBorrowedCollateralObligationToReturnCash	23114000000	usd
CY2023Q1	us-gaap	Derivative Asset Securities Purchased Under Agreements To Resell Securities Borrowed Amount Offset Against Collateral DerivativeAssetSecuritiesPurchasedUnderAgreementsToResellSecuritiesBorrowedAmountOffsetAgainstCollateral	4308000000	usd
CY2022Q4	stt	Derivative Asset Collateral Obligationto Return Securitiesand Cash Offset DerivativeAssetCollateralObligationtoReturnSecuritiesandCashOffset	3298000000	usd
CY2022Q4	stt	Derivative Asset Collateral Obligationto Return Securitiesand Cash Offset DerivativeAssetCollateralObligationtoReturnSecuritiesandCashOffset	3298000000	usd
CY2022Q4	stt	Derivative Collateral Obligationto Return Securitiesand Cash DerivativeCollateralObligationtoReturnSecuritiesandCash	1717000000	usd
CY2022Q4	stt	Derivative Collateral Obligationto Return Securitiesand Cash Netof Offset DerivativeCollateralObligationtoReturnSecuritiesandCashNetofOffset	5015000000	usd
CY2022Q4	us-gaap	Derivative Fair Value Of Derivative Asset DerivativeFairValueOfDerivativeAsset	26186000000	usd
CY2022Q4	us-gaap	Derivative Asset Fair Value Gross Liability DerivativeAssetFairValueGrossLiability	18522000000	usd
CY2022Q4	us-gaap	Derivative Fair Value Of Derivative Asset Amount Not Offset Against Collateral DerivativeFairValueOfDerivativeAssetAmountNotOffsetAgainstCollateral	7664000000	usd
CY2022Q4	stt	Derivative Collateral Obligationto Return Securitiesand Cash DerivativeCollateralObligationtoReturnSecuritiesandCash	1717000000	usd
CY2022Q4	us-gaap	Derivative Fair Value Of Derivative Asset Amount Offset Against Collateral DerivativeFairValueOfDerivativeAssetAmountOffsetAgainstCollateral	5947000000	usd
CY2022Q4	stt	Reverse Repurchase Agreements And Securities Borrowing Fair Value Gross Asset ReverseRepurchaseAgreementsAndSecuritiesBorrowingFairValueGrossAsset	125797000000	usd
CY2022Q4	stt	Reverse Repurchase Agreements And Securities Borrowed Liability ReverseRepurchaseAgreementsAndSecuritiesBorrowedLiability	104093000000	usd
CY2022Q4	stt	Reverse Repurchase Agreements And Securities Borrowed Fair Value Amount Not Offset Against Collateral ReverseRepurchaseAgreementsAndSecuritiesBorrowedFairValueAmountNotOffsetAgainstCollateral	21704000000	usd
CY2022Q4	stt	Reverse Repurchase Agreements And Securities Borrowed Collateral Obligation To Return Cash ReverseRepurchaseAgreementsAndSecuritiesBorrowedCollateralObligationToReturnCash	20960000000	usd
CY2022Q4	stt	Reverse Repurchase Agreements And Securities Borrowed Amount Offset Against Collateral ReverseRepurchaseAgreementsAndSecuritiesBorrowedAmountOffsetAgainstCollateral	744000000	usd
CY2022Q4	us-gaap	Derivative Asset Securities Purchased Under Agreements To Resell Securities Borrowed Gross DerivativeAssetSecuritiesPurchasedUnderAgreementsToResellSecuritiesBorrowedGross	151983000000	usd
CY2022Q4	us-gaap	Derivative Asset Securities Purchased Under Agreements To Resell Securities Borrowed Liability DerivativeAssetSecuritiesPurchasedUnderAgreementsToResellSecuritiesBorrowedLiability	122615000000	usd
CY2022Q4	stt	Derivative Asset Reverse Repurchase Agreements And Securities Borrowed Not Offset Against Collateral DerivativeAssetReverseRepurchaseAgreementsAndSecuritiesBorrowedNotOffsetAgainstCollateral	29368000000	usd
CY2022Q4	us-gaap	Derivative Asset Securities Purchased Under Agreements To Resell Securities Borrowed Collateral Obligation To Return Cash DerivativeAssetSecuritiesPurchasedUnderAgreementsToResellSecuritiesBorrowedCollateralObligationToReturnCash	22677000000	usd
CY2022Q4	us-gaap	Derivative Asset Securities Purchased Under Agreements To Resell Securities Borrowed Amount Offset Against Collateral DerivativeAssetSecuritiesPurchasedUnderAgreementsToResellSecuritiesBorrowedAmountOffsetAgainstCollateral	6691000000	usd
CY2023Q1	stt	Reverse Repurchase Agreements And Securities Borrowed Fair Value Amount Not Offset Against Collateral ReverseRepurchaseAgreementsAndSecuritiesBorrowedFairValueAmountNotOffsetAgainstCollateral	22760000000	usd
CY2023Q1	us-gaap	Securities Purchased Under Agreements To Resell SecuritiesPurchasedUnderAgreementsToResell	1130000000	usd
CY2023Q1	us-gaap	Cash Collateral For Borrowed Securities CashCollateralForBorrowedSecurities	21630000000	usd
CY2022Q4	stt	Reverse Repurchase Agreements And Securities Borrowed Fair Value Amount Not Offset Against Collateral ReverseRepurchaseAgreementsAndSecuritiesBorrowedFairValueAmountNotOffsetAgainstCollateral	21700000000	usd
CY2022Q4	us-gaap	Securities Purchased Under Agreements To Resell SecuritiesPurchasedUnderAgreementsToResell	5210000000	usd
CY2022Q4	us-gaap	Cash Collateral For Borrowed Securities CashCollateralForBorrowedSecurities	16490000000	usd
CY2023Q1	stt	Derivative Liability Collateral Rightto Reclaim Securitiesand Cash Offset DerivativeLiabilityCollateralRighttoReclaimSecuritiesandCashOffset	1228000000	usd
CY2023Q1	stt	Derivative Liability Collateral Rightto Reclaim Securitiesand Cash Offset DerivativeLiabilityCollateralRighttoReclaimSecuritiesandCashOffset	1228000000	usd
CY2023Q1	stt	Derivative Collateral Rightto Reclaim Securitiesand Cash DerivativeCollateralRighttoReclaimSecuritiesandCash	515000000	usd
CY2023Q1	stt	Derivative Collateral Rightto Reclaim Securitiesand Cash Netof Offset DerivativeCollateralRighttoReclaimSecuritiesandCashNetofOffset	1743000000	usd
CY2023Q1	us-gaap	Derivative Fair Value Of Derivative Liability DerivativeFairValueOfDerivativeLiability	15610000000	usd
CY2023Q1	us-gaap	Derivative Liability Fair Value Gross Asset DerivativeLiabilityFairValueGrossAsset	10754000000	usd
CY2023Q1	us-gaap	Derivative Fair Value Of Derivative Liability Amount Not Offset Against Collateral DerivativeFairValueOfDerivativeLiabilityAmountNotOffsetAgainstCollateral	4856000000	usd
CY2023Q1	stt	Derivative Collateral Rightto Reclaim Securitiesand Cash DerivativeCollateralRighttoReclaimSecuritiesandCash	515000000	usd
CY2023Q1	us-gaap	Derivative Fair Value Of Derivative Liability Amount Offset Against Collateral DerivativeFairValueOfDerivativeLiabilityAmountOffsetAgainstCollateral	4341000000	usd
CY2023Q1	stt	Reverse Repurchase Agreements And Securities Borrowing Fair Value Gross Liability ReverseRepurchaseAgreementsAndSecuritiesBorrowingFairValueGrossLiability	203445000000	usd
CY2023Q1	stt	Reverse Repurchase Agreements And Securities Borrowed Asset ReverseRepurchaseAgreementsAndSecuritiesBorrowedAsset	189844000000	usd
CY2023Q1	stt	Repurchase Agreements And Securities Lending Fair Value Amount Not Offset Against Collateral RepurchaseAgreementsAndSecuritiesLendingFairValueAmountNotOffsetAgainstCollateral	13601000000	usd
CY2023Q1	stt	Repurchase Agreements And Securities Loaned Collateral Right To Reclaim Cash RepurchaseAgreementsAndSecuritiesLoanedCollateralRightToReclaimCash	12399000000	usd
CY2023Q1	stt	Repurchase Agreements And Securities Loaned Amount Offset Against Collateral RepurchaseAgreementsAndSecuritiesLoanedAmountOffsetAgainstCollateral	1202000000	usd
CY2023Q1	us-gaap	Derivative Liability Securities Sold Under Agreements To Resell Securities Loaned Gross DerivativeLiabilitySecuritiesSoldUnderAgreementsToResellSecuritiesLoanedGross	219055000000	usd
CY2023Q1	us-gaap	Derivative Liability Securities Sold Under Agreements To Resell Securities Loaned Asset DerivativeLiabilitySecuritiesSoldUnderAgreementsToResellSecuritiesLoanedAsset	200598000000	usd
CY2023Q1	stt	Derivative Liability Securities Sold Under Agreements To Resell And Securities Loaned Not Offset Against Collateral DerivativeLiabilitySecuritiesSoldUnderAgreementsToResellAndSecuritiesLoanedNotOffsetAgainstCollateral	18457000000	usd
CY2023Q1	us-gaap	Derivative Liability Securities Sold Under Agreements To Resell Securities Loaned Collateral Right To Reclaim Cash DerivativeLiabilitySecuritiesSoldUnderAgreementsToResellSecuritiesLoanedCollateralRightToReclaimCash	12914000000	usd
CY2023Q1	us-gaap	Derivative Liability Securities Sold Under Agreements To Resell Securities Loaned Amount Offset Against Collateral DerivativeLiabilitySecuritiesSoldUnderAgreementsToResellSecuritiesLoanedAmountOffsetAgainstCollateral	5543000000	usd
CY2022Q4	stt	Derivative Liability Collateral Rightto Reclaim Securitiesand Cash Offset DerivativeLiabilityCollateralRighttoReclaimSecuritiesandCashOffset	2727000000	usd
CY2022Q4	stt	Derivative Liability Collateral Rightto Reclaim Securitiesand Cash Offset DerivativeLiabilityCollateralRighttoReclaimSecuritiesandCashOffset	2727000000	usd
CY2022Q4	stt	Derivative Collateral Rightto Reclaim Securitiesand Cash DerivativeCollateralRighttoReclaimSecuritiesandCash	908000000	usd
CY2022Q4	stt	Derivative Collateral Rightto Reclaim Securitiesand Cash Netof Offset DerivativeCollateralRighttoReclaimSecuritiesandCashNetofOffset	3635000000	usd
CY2022Q4	us-gaap	Derivative Fair Value Of Derivative Liability DerivativeFairValueOfDerivativeLiability	25966000000	usd
CY2022Q4	us-gaap	Derivative Liability Fair Value Gross Asset DerivativeLiabilityFairValueGrossAsset	17951000000	usd
CY2022Q4	us-gaap	Derivative Fair Value Of Derivative Liability Amount Not Offset Against Collateral DerivativeFairValueOfDerivativeLiabilityAmountNotOffsetAgainstCollateral	8015000000	usd
CY2022Q4	stt	Derivative Collateral Rightto Reclaim Securitiesand Cash DerivativeCollateralRighttoReclaimSecuritiesandCash	908000000	usd
CY2022Q4	us-gaap	Derivative Fair Value Of Derivative Liability Amount Offset Against Collateral DerivativeFairValueOfDerivativeLiabilityAmountOffsetAgainstCollateral	7107000000	usd
CY2022Q4	stt	Reverse Repurchase Agreements And Securities Borrowing Fair Value Gross Liability ReverseRepurchaseAgreementsAndSecuritiesBorrowingFairValueGrossLiability	111653000000	usd
CY2022Q4	stt	Reverse Repurchase Agreements And Securities Borrowed Asset ReverseRepurchaseAgreementsAndSecuritiesBorrowedAsset	104093000000	usd
CY2022Q4	stt	Repurchase Agreements And Securities Lending Fair Value Amount Not Offset Against Collateral RepurchaseAgreementsAndSecuritiesLendingFairValueAmountNotOffsetAgainstCollateral	7560000000	usd
CY2022Q4	stt	Repurchase Agreements And Securities Loaned Collateral Right To Reclaim Cash RepurchaseAgreementsAndSecuritiesLoanedCollateralRightToReclaimCash	6433000000	usd
CY2022Q4	stt	Repurchase Agreements And Securities Loaned Amount Offset Against Collateral RepurchaseAgreementsAndSecuritiesLoanedAmountOffsetAgainstCollateral	1127000000	usd
CY2022Q4	us-gaap	Derivative Liability Securities Sold Under Agreements To Resell Securities Loaned Gross DerivativeLiabilitySecuritiesSoldUnderAgreementsToResellSecuritiesLoanedGross	137619000000	usd
CY2022Q4	us-gaap	Derivative Liability Securities Sold Under Agreements To Resell Securities Loaned Asset DerivativeLiabilitySecuritiesSoldUnderAgreementsToResellSecuritiesLoanedAsset	122044000000	usd
CY2022Q4	stt	Derivative Liability Securities Sold Under Agreements To Resell And Securities Loaned Not Offset Against Collateral DerivativeLiabilitySecuritiesSoldUnderAgreementsToResellAndSecuritiesLoanedNotOffsetAgainstCollateral	15575000000	usd
CY2022Q4	us-gaap	Derivative Liability Securities Sold Under Agreements To Resell Securities Loaned Collateral Right To Reclaim Cash DerivativeLiabilitySecuritiesSoldUnderAgreementsToResellSecuritiesLoanedCollateralRightToReclaimCash	7341000000	usd
CY2022Q4	us-gaap	Derivative Liability Securities Sold Under Agreements To Resell Securities Loaned Amount Offset Against Collateral DerivativeLiabilitySecuritiesSoldUnderAgreementsToResellSecuritiesLoanedAmountOffsetAgainstCollateral	8234000000	usd
CY2023Q1	stt	Repurchase Agreements And Securities Lending Fair Value Amount Not Offset Against Collateral RepurchaseAgreementsAndSecuritiesLendingFairValueAmountNotOffsetAgainstCollateral	13600000000	usd
CY2023Q1	us-gaap	Securities Sold Under Agreements To Repurchase SecuritiesSoldUnderAgreementsToRepurchase	3690000000	usd
CY2022Q4	stt	Repurchase Agreements And Securities Lending Fair Value Amount Not Offset Against Collateral RepurchaseAgreementsAndSecuritiesLendingFairValueAmountNotOffsetAgainstCollateral	7560000000	usd
CY2022Q4	us-gaap	Securities Sold Under Agreements To Repurchase SecuritiesSoldUnderAgreementsToRepurchase	1180000000	usd
CY2023Q1	us-gaap	Securities Sold Under Agreements To Repurchase Gross SecuritiesSoldUnderAgreementsToRepurchaseGross	190014000000	usd
CY2022Q4	us-gaap	Securities Sold Under Agreements To Repurchase Gross SecuritiesSoldUnderAgreementsToRepurchaseGross	101801000000	usd
CY2023Q1	us-gaap	Securities Loaned Gross SecuritiesLoanedGross	13431000000	usd
CY2022Q4	us-gaap	Securities Loaned Gross SecuritiesLoanedGross	9852000000	usd
CY2023Q1	us-gaap	Securities Loaned And Securities Sold Under Agreement To Repurchase Gross Including Not Subject To Master Netting Arrangement SecuritiesLoanedAndSecuritiesSoldUnderAgreementToRepurchaseGrossIncludingNotSubjectToMasterNettingArrangement	203445000000	usd
CY2022Q4	us-gaap	Securities Loaned And Securities Sold Under Agreement To Repurchase Gross Including Not Subject To Master Netting Arrangement SecuritiesLoanedAndSecuritiesSoldUnderAgreementToRepurchaseGrossIncludingNotSubjectToMasterNettingArrangement	111653000000	usd
CY2023Q1	us-gaap	Unused Commitments To Extend Credit UnusedCommitmentsToExtendCredit	32990000000	usd
CY2022Q4	us-gaap	Unused Commitments To Extend Credit UnusedCommitmentsToExtendCredit	31208000000	usd
CY2023Q1	stt	Aggregate Fair Value Of Indemnified Securities On Loan AggregateFairValueOfIndemnifiedSecuritiesOnLoan	349966000000	usd
CY2022Q4	stt	Aggregate Fair Value Of Indemnified Securities On Loan AggregateFairValueOfIndemnifiedSecuritiesOnLoan	348924000000	usd
CY2023Q1	stt	Stand By Letters Of Credit StandByLettersOfCredit	1859000000	usd
CY2022Q4	stt	Stand By Letters Of Credit StandByLettersOfCredit	2125000000	usd
CY2023Q1	stt	Unfunded Commitments To Extend Credit Short Term UnfundedCommitmentsToExtendCreditShortTerm	0.76
CY2023Q1	stt	Unfunded Commitmentto Extend Credit Term UnfundedCommitmenttoExtendCreditTerm	P1Y
CY2022Q4	stt	Unfunded Commitments To Extend Credit Short Term UnfundedCommitmentsToExtendCreditShortTerm	0.77
CY2023Q1	us-gaap	Schedule Of Repurchase Agreements ScheduleOfRepurchaseAgreements	<div style="margin-top:3pt;text-align:justify;text-indent:22.5pt"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">The following table summarizes the aggregate fair values of indemnified securities financing and related collateral, as well as collateral invested in indemnified repurchase agreements, as of the dates indicated:</span></div><div style="margin-top:3pt;text-align:justify"><table style="border-collapse:collapse;display:inline-table;margin-bottom:5pt;vertical-align:text-bottom;width:99.853%"><tr><td style="width:1.0%"/><td style="width:46.484%"/><td style="width:0.1%"/><td style="width:1.0%"/><td style="width:24.815%"/><td style="width:0.1%"/><td style="width:0.1%"/><td style="width:0.385%"/><td style="width:0.1%"/><td style="width:1.0%"/><td style="width:24.816%"/><td style="width:0.1%"/></tr><tr><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:7pt;font-weight:700;line-height:100%">(In millions)</span></td><td colspan="3" style="padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:7pt;font-weight:700;line-height:100%">March 31, 2023</span></td><td colspan="3" style="padding:0 1pt"/><td colspan="3" style="padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:7pt;font-weight:700;line-height:100%">December 31, 2022</span></td></tr><tr><td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:7pt;font-weight:400;line-height:100%">Fair value of indemnified securities financing</span></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:7pt;font-weight:700;line-height:100%">$</span></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:7pt;font-weight:700;line-height:100%">349,966</span><span style="color:#000000;font-family:'Arial',sans-serif;font-size:7pt;font-weight:400;line-height:100%"> </span></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:7pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:7pt;font-weight:400;line-height:100%">348,924 </span></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/></tr><tr><td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:7pt;font-weight:400;line-height:100%">Fair value of cash and securities held by us, as agent, as collateral for indemnified securities financing</span></td><td colspan="2" style="padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:7pt;font-weight:700;line-height:100%">364,016</span><span style="color:#000000;font-family:'Arial',sans-serif;font-size:7pt;font-weight:400;line-height:100%"> </span></td><td style="padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#ffffff;padding:0 1pt"/><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:7pt;font-weight:400;line-height:100%">366,895 </span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/></tr><tr><td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:7pt;font-weight:400;line-height:100%">Fair value of collateral for indemnified securities financing invested in indemnified repurchase agreements</span></td><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:7pt;font-weight:700;line-height:100%">56,569</span><span style="color:#000000;font-family:'Arial',sans-serif;font-size:7pt;font-weight:400;line-height:100%"> </span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:7pt;font-weight:400;line-height:100%">54,114 </span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/></tr><tr><td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:7pt;font-weight:400;line-height:100%">Fair value of cash and securities held by us or our agents as collateral for investments in indemnified repurchase agreements</span></td><td colspan="2" style="padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:7pt;font-weight:700;line-height:100%">60,935</span><span style="color:#000000;font-family:'Arial',sans-serif;font-size:7pt;font-weight:400;line-height:100%"> </span></td><td style="padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#ffffff;padding:0 1pt"/><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:7pt;font-weight:400;line-height:100%">57,903 </span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/></tr></table></div>
CY2023Q1	stt	Aggregate Fair Value Of Indemnified Securities On Loan AggregateFairValueOfIndemnifiedSecuritiesOnLoan	349966000000	usd
CY2022Q4	stt	Aggregate Fair Value Of Indemnified Securities On Loan AggregateFairValueOfIndemnifiedSecuritiesOnLoan	348924000000	usd
CY2023Q1	stt	Aggregate Fair Value Of Cash And Securities Held As Collateral For Indemnified Securities AggregateFairValueOfCashAndSecuritiesHeldAsCollateralForIndemnifiedSecurities	364016000000	usd
CY2022Q4	stt	Aggregate Fair Value Of Cash And Securities Held As Collateral For Indemnified Securities AggregateFairValueOfCashAndSecuritiesHeldAsCollateralForIndemnifiedSecurities	366895000000	usd
CY2023Q1	stt	Collateralfor Indemnified Securities Investedin Indemnified Repurchase Agreements CollateralforIndemnifiedSecuritiesInvestedinIndemnifiedRepurchaseAgreements	56569000000	usd
CY2022Q4	stt	Collateralfor Indemnified Securities Investedin Indemnified Repurchase Agreements CollateralforIndemnifiedSecuritiesInvestedinIndemnifiedRepurchaseAgreements	54114000000	usd
CY2023Q1	stt	Aggregate Fair Value Of Cash And Securities Held As Collateral For Indemnified Repurchase Agreements AggregateFairValueOfCashAndSecuritiesHeldAsCollateralForIndemnifiedRepurchaseAgreements	60935000000	usd
CY2022Q4	stt	Aggregate Fair Value Of Cash And Securities Held As Collateral For Indemnified Repurchase Agreements AggregateFairValueOfCashAndSecuritiesHeldAsCollateralForIndemnifiedRepurchaseAgreements	57903000000	usd
CY2023Q1	us-gaap	Cash Collateral For Borrowed Securities CashCollateralForBorrowedSecurities	21630000000	usd
CY2022Q4	us-gaap	Cash Collateral For Borrowed Securities CashCollateralForBorrowedSecurities	16490000000	usd
CY2023Q1	us-gaap	Loss Contingency Disclosures LossContingencyDisclosures	Contingencies<div style="margin-top:3pt"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-style:italic;font-weight:700;line-height:120%">Legal and Regulatory Matters</span></div><div style="margin-top:3pt;text-align:justify;text-indent:22.5pt"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">In the ordinary course of business, we and our subsidiaries are involved in disputes, litigation, and governmental or regulatory inquiries and investigations, both pending and threatened. These matters, if resolved adversely against us or settled, may result in monetary awards or payments, fines and penalties or require changes in our business practices. The resolution or settlement of these matters is inherently difficult to predict. Based on our assessment of these pending matters, we do not believe that the amount of any judgment, settlement </span></div><div style="margin-top:3pt;text-align:justify"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">or other action arising from any pending matter is likely to have a material adverse effect on our consolidated financial condition. However, an adverse outcome or development in certain of the matters described below could have a material adverse effect on our consolidated results of operations for the period in which such matter is resolved, or an accrual is determined to be required, on our consolidated financial condition, or on our reputation. </span></div><div style="margin-top:3pt;text-align:justify;text-indent:22.5pt"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">We evaluate our needs for accruals of loss contingencies related to legal and regulatory proceedings on a case-by-case basis. When we have a liability that we deem probable, and we deem the amount of such liability can be reasonably estimated as of the date of our consolidated financial statements, we accrue our estimate of the amount of loss. We also consider a loss probable and establish an accrual when we make, or intend to make, an offer of settlement. Once established, an accrual is subject to subsequent adjustment as a result of additional information. The resolution of legal and regulatory proceedings and the amount of reasonably estimable loss (or range thereof) are inherently difficult to predict, especially in the early stages of proceedings. Even if a loss is probable, an amount (or range) of loss might not be reasonably estimated until the later stages of the proceeding due to many factors such as the presence of complex or novel legal theories, the discretion of governmental authorities in seeking sanctions or negotiating resolutions in civil and criminal matters, the pace and timing of discovery and other assessments of facts and the procedural posture of the matter (collectively, "factors influencing reasonable estimates"). </span></div><div style="margin-top:3pt;text-align:justify;text-indent:22.5pt"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">As of March 31, 2023, our aggregate accruals for loss contingencies for legal, regulatory and related matters totaled approximately $16 million, including potential fines by government agencies and civil litigation with respect to the matters specifically discussed below. To the extent that we have established accruals in our consolidated statement of condition for probable loss contingencies, such accruals may not be sufficient to cover our ultimate financial exposure associated with any settlements or judgments. Any such ultimate financial exposure, or proceedings to which we may become subject in the future, could have a material adverse effect on our businesses, on our future consolidated financial statements or on our reputation. </span></div><div style="margin-top:3pt;text-align:justify;text-indent:22.5pt"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">As of March 31, 2023, for those matters for which we have accrued probable loss contingencies (including the Invoicing Matter described below) and for other matters for which loss is reasonably possible (but not probable) in future periods, and for which we are able to estimate a range of reasonably possible loss, our estimate of the aggregate reasonably possible loss (in excess of any accrued amounts) </span></div><div style="display:inline-block;vertical-align:top;width:46.491%"><div style="margin-top:3pt;text-align:justify"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">ranges up to approximately $55 million. Our estimate with respect to the aggregate reasonably possible loss is based upon currently available information and is subject to significant judgment and a variety of assumptions and known and unknown uncertainties, which may change quickly and significantly from time to time, particularly if and as we engage with applicable governmental agencies or plaintiffs in connection with a proceeding. Also, the matters underlying the reasonably possible loss will change from time to time. As a result, actual results may vary significantly from the current estimate.</span></div><div style="margin-top:3pt;text-align:justify;text-indent:22.5pt"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">In certain pending matters, it is not currently feasible to reasonably estimate the amount or a range of reasonably possible loss, and such losses, which may be significant, are not included in the estimate of reasonably possible loss discussed above. This is due to, among other factors, the factors influencing reasonable estimates described above. An adverse outcome in one or more of the matters for which we have not estimated the amount or a range of reasonably possible loss, individually or in the aggregate, could have a material adverse effect on our businesses, on our future consolidated financial statements or on our reputation. Given that our actual losses from any legal or regulatory proceeding for which we have provided an estimate of the reasonably possible loss could significantly exceed such estimate, and given that we cannot estimate reasonably possible loss for all legal and regulatory proceedings as to which we may be subject now or in the future, no conclusion as to our ultimate exposure from current pending or potential legal or regulatory proceedings should be drawn from the current estimate of reasonably possible loss. </span></div><div style="margin-top:3pt;text-align:justify;text-indent:22.5pt"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">The following discussion provides information with respect to significant legal, governmental and regulatory matters. </span></div><div style="margin-top:3pt;text-align:justify"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-style:italic;font-weight:400;line-height:120%">Invoicing Matter</span></div><div style="margin-top:3pt;text-align:justify;text-indent:22.5pt"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">In 2015, we determined that we had incorrectly invoiced clients for certain expenses. We have reimbursed most of our affected customers for those expenses, and we have implemented enhancements to our billing processes. In connection with our enhancements to our billing processes, we continue to review historical billing practices and may from time to time identify additional remediation. In 2017, we identified an additional area of incorrect expense billing associated with mailing services in our retirement services business. We currently expect the cumulative total of our payments to customers for these invoicing errors, including the error in the retirement services business, to be at least $350 million, all of which has been paid or is accrued. However, we may identify additional remediation costs.</span></div></div><div style="display:inline-block;max-width:7.017%;min-width:6.017%;vertical-align:top"/><div style="display:inline-block;vertical-align:top;width:46.492%"><div style="margin-top:3pt;text-align:justify;text-indent:22.5pt"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">In March 2017, a purported class action was commenced against us alleging that our invoicing practices violated duties owed to retirement plan customers under the Employee Retirement Income Security Act. We have agreed, subject to court approval, to resolve this matter and pay a cost that is within our established accruals for loss contingencies. In addition, we have received a purported class action demand letter alleging that our invoicing practices were unfair and deceptive under Massachusetts law. A class of customers, or particular customers, may assert that we have not paid to them all amounts incorrectly invoiced, and may seek double or treble damages under Massachusetts law. </span></div><div style="margin-top:3pt;text-align:justify;text-indent:22.5pt"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">We resolved potential criminal claims that arose from these matters by entering into a deferred prosecution agreement with the office of the United States Attorney for the District of Massachusetts and paying a $115 million penalty in May 2021. In June 2019, we reached an agreement with the SEC to settle its claims that we violated the recordkeeping provisions of Section 34(b) of the Investment Company Act of 1940 and caused violations of Section 31(a) of the Investment Company Act and Rules 31a-1(a) and 31a-1(b) thereunder in connection with our overcharges of customers which are registered investment companies. In reaching this settlement, we neither admitted nor denied the claims contained in the SEC’s order, and agreed to pay a civil monetary penalty of $40 million. Also in June 2019, we reached an agreement with the Massachusetts Attorney General’s office to resolve its claims related to this matter. In reaching this settlement, we neither admitted nor denied the claims in the order, and agreed to pay a civil monetary penalty of $5.5 million. The SEC and Massachusetts Attorney General’s office settlements both recognize that the payment of $48.8 million in disgorgement and interest is satisfied by our direct reimbursements of our customers. We paid fines to resolve claims of the Securities Divisions of the Secretaries of the State of Massachusetts and New Hampshire. The costs associated with the settlements discussed above were within our related and previously established accruals for loss contingencies.</span></div><div style="margin-top:3pt;text-align:justify;text-indent:22.5pt"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">We have not resolved certain claims that may be made by the U.S. Department of Labor. We do not know whether any such claims will be brought, and there can be no assurance that any settlement of any such claims will be reached on financial terms acceptable to us or at all. The aggregate amount of penalties that may potentially be imposed upon us in connection with the resolution of any such matters is not currently known. </span></div></div><div style="margin-top:3pt;text-align:justify"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-style:italic;font-weight:400;line-height:120%">Gomes, et al. v. State Street Corp.</span></div><div style="margin-top:3pt;text-align:justify;text-indent:22.5pt"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">Eight participants in our Salary Savings Program filed a purported class action complaint in May 2021 on behalf of participants and beneficiaries who participated in the Program and invested in our proprietary investment fund options between May 2015 and the present. The complaint names the Plan Sponsor as well as the committees overseeing the Plan and their respective members as defendants, and alleges breach of fiduciary duty and violations of other duties owed to retirement plan participants under the Employee Retirement Income and Security Act. We and the other named defendants deny the alleged claims and are proceeding with a defense of the matter.</span></div><div style="margin-top:3pt;text-align:justify"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-style:italic;font-weight:400;line-height:120%">Edmar Financial Company, LLC et al v. Currenex, Inc. et al</span></div><div style="margin-top:3pt;text-align:justify;text-indent:22.5pt"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">In August 2021, two former Currenex clients filed a putative civil class action lawsuit in the Southern District of New York alleging antitrust violations, fraud and a civil Racketeer Influenced and Corrupt Organization Act violation against Currenex, State Street and others.</span></div><div style="margin-top:3pt"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-style:italic;font-weight:700;line-height:120%">Income Taxes</span></div><div style="margin-top:3pt;text-align:justify;text-indent:22.5pt"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">In determining our provision for income taxes, we make certain judgments and interpretations with respect to tax laws in jurisdictions in which we have business operations. Because of the complex nature of these laws, in the normal course of our business, we are subject to challenges from U.S. and non-U.S. income tax authorities regarding the amount of income taxes due. These challenges may result in adjustments to the timing or amount of taxable income or deductions or the allocation of taxable income among tax jurisdictions. We recognize a tax benefit when it is more likely than not that our position will result in a tax deduction or credit. Unrecognized tax benefits totaled approximately $280 million and $285 million as of March 31, 2023 and December 31, 2022, respectively. </span></div><div style="margin-top:3pt;text-align:justify;text-indent:22.5pt"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:115%">We are presently under audit by a number of tax authorities. The earliest tax year open to examination in jurisdictions where we have material operations is 2013. Management believes that we have sufficiently accrued liabilities as of March 31, 2023 for potential tax exposures.</span></div>
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CY2023Q1	us-gaap	Loss Contingency Estimate Of Possible Loss LossContingencyEstimateOfPossibleLoss	55000000	usd
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CY2023Q1	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.63
CY2023Q1	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.63
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CY2023Q1	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	212000000	usd
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CY2022Q1	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	209000000	usd
CY2022Q1	us-gaap	Reclassification From Aoci Current Period Net Of Tax Attributable To Parent ReclassificationFromAociCurrentPeriodNetOfTaxAttributableToParent	1000000	usd
CY2022Q1	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	-1565000000	usd
CY2023Q1	us-gaap	Oci Before Reclassifications Net Of Tax Attributable To Parent OciBeforeReclassificationsNetOfTaxAttributableToParent	338000000	usd
CY2023Q1	us-gaap	Reclassification From Aoci Current Period Net Of Tax Attributable To Parent ReclassificationFromAociCurrentPeriodNetOfTaxAttributableToParent	-101000000	usd
CY2023Q1	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	439000000	usd
CY2023Q1	stt	Debt Securities Available For Sale Transfer From Held To Maturity Amount DebtSecuritiesAvailableForSaleTransferFromHeldToMaturityAmount	697000000	usd
CY2022	stt	Debt Securities Available For Sale Transfer From Held To Maturity Amount DebtSecuritiesAvailableForSaleTransferFromHeldToMaturityAmount	749000000	usd
CY2023Q1	stt	Other Comprehensive Income Loss Reclassified Losses Into Net Income Tax OtherComprehensiveIncomeLossReclassifiedLossesIntoNetIncomeTax	19000000	usd
CY2022Q1	stt	Other Comprehensive Income Loss Reclassified Losses Into Net Income Tax OtherComprehensiveIncomeLossReclassifiedLossesIntoNetIncomeTax	0	usd
CY2023Q1	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Reclassification Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationTax	14000000	usd
CY2022Q1	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Reclassification Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationTax	-6000000	usd
CY2023Q1	stt	Other Comprehensive Income Loss Defined Benefit Plan Actuarial Losses Before Reclassification Adjustment Tax OtherComprehensiveIncomeLossDefinedBenefitPlanActuarialLossesBeforeReclassificationAdjustmentTax	5000000	usd
CY2022Q1	stt	Other Comprehensive Income Loss Defined Benefit Plan Actuarial Losses Before Reclassification Adjustment Tax OtherComprehensiveIncomeLossDefinedBenefitPlanActuarialLossesBeforeReclassificationAdjustmentTax	6000000	usd
CY2023Q1	stt	Tier One Common Risk Based Capital Requiredfor Capital Adequacyto Risk Weighted Assets TierOneCommonRiskBasedCapitalRequiredforCapitalAdequacytoRiskWeightedAssets	0.080
CY2022Q4	stt	Tier One Common Risk Based Capital Requiredfor Capital Adequacyto Risk Weighted Assets TierOneCommonRiskBasedCapitalRequiredforCapitalAdequacytoRiskWeightedAssets	0.080
CY2023Q1	us-gaap	Tier One Risk Based Capital Required For Capital Adequacy To Risk Weighted Assets TierOneRiskBasedCapitalRequiredForCapitalAdequacyToRiskWeightedAssets	0.095
CY2022Q4	us-gaap	Tier One Risk Based Capital Required For Capital Adequacy To Risk Weighted Assets TierOneRiskBasedCapitalRequiredForCapitalAdequacyToRiskWeightedAssets	0.095
CY2023Q1	us-gaap	Capital Required For Capital Adequacy To Risk Weighted Assets CapitalRequiredForCapitalAdequacyToRiskWeightedAssets	0.115
CY2022Q4	us-gaap	Capital Required For Capital Adequacy To Risk Weighted Assets CapitalRequiredForCapitalAdequacyToRiskWeightedAssets	0.115
CY2023Q1	us-gaap	Tier One Leverage Capital Required For Capital Adequacy To Average Assets TierOneLeverageCapitalRequiredForCapitalAdequacyToAverageAssets	0.040
CY2022Q4	us-gaap	Tier One Leverage Capital Required For Capital Adequacy To Average Assets TierOneLeverageCapitalRequiredForCapitalAdequacyToAverageAssets	0.040
CY2023Q1	us-gaap	Banking Regulation Capital Conservation Buffer Capital Conserved Minimum BankingRegulationCapitalConservationBufferCapitalConservedMinimum	0.025
CY2023Q1	stt	Banking Regulation Stress Capital Buffer BankingRegulationStressCapitalBuffer	0.025
CY2023Q1	us-gaap	Banking Regulation Global Systemically Important Bank Gsib Surcharge BankingRegulationGlobalSystemicallyImportantBankGsibSurcharge	0.010
CY2023Q1	us-gaap	Banking Regulation Countercyclical Capital Buffer BankingRegulationCountercyclicalCapitalBuffer	0
CY2023Q1	us-gaap	Banking Regulation Leverage Buffer Minimum BankingRegulationLeverageBufferMinimum	0.05
CY2023Q1	us-gaap	Interest Income Deposits With Financial Institutions InterestIncomeDepositsWithFinancialInstitutions	641000000	usd
CY2022Q1	us-gaap	Interest Income Deposits With Financial Institutions InterestIncomeDepositsWithFinancialInstitutions	9000000	usd
CY2023Q1	stt	Interest Income Investment Securities Available For Sale InterestIncomeInvestmentSecuritiesAvailableForSale	347000000	usd
CY2022Q1	stt	Interest Income Investment Securities Available For Sale InterestIncomeInvestmentSecuritiesAvailableForSale	154000000	usd
CY2023Q1	stt	Interest Income Investment Securities Held To Maturity InterestIncomeInvestmentSecuritiesHeldToMaturity	321000000	usd
CY2022Q1	stt	Interest Income Investment Securities Held To Maturity InterestIncomeInvestmentSecuritiesHeldToMaturity	171000000	usd
CY2023Q1	stt	Interest Income Investment Securities InterestIncomeInvestmentSecurities	668000000	usd
CY2022Q1	stt	Interest Income Investment Securities InterestIncomeInvestmentSecurities	325000000	usd
CY2023Q1	us-gaap	Interest Income Securities Purchased Under Agreements To Resell InterestIncomeSecuritiesPurchasedUnderAgreementsToResell	76000000	usd
CY2022Q1	us-gaap	Interest Income Securities Purchased Under Agreements To Resell InterestIncomeSecuritiesPurchasedUnderAgreementsToResell	10000000	usd
CY2023Q1	us-gaap	Interest And Fee Income Loans And Leases InterestAndFeeIncomeLoansAndLeases	397000000	usd
CY2022Q1	us-gaap	Interest And Fee Income Loans And Leases InterestAndFeeIncomeLoansAndLeases	172000000	usd
CY2023Q1	stt	Interest Earning Assets Other InterestEarningAssetsOther	245000000	usd
CY2022Q1	stt	Interest Earning Assets Other InterestEarningAssetsOther	5000000	usd
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CY2023Q1	us-gaap	Interest Expense Deposits InterestExpenseDeposits	953000000	usd
CY2022Q1	us-gaap	Interest Expense Deposits InterestExpenseDeposits	-63000000	usd
CY2023Q1	us-gaap	Interest Expense Securities Sold Under Agreements To Repurchase InterestExpenseSecuritiesSoldUnderAgreementsToRepurchase	9000000	usd
CY2022Q1	us-gaap	Interest Expense Securities Sold Under Agreements To Repurchase InterestExpenseSecuritiesSoldUnderAgreementsToRepurchase	0	usd
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CY2022Q1	us-gaap	Interest Expense Federal Funds Purchased InterestExpenseFederalFundsPurchased	0	usd
CY2023Q1	us-gaap	Interest Expense Short Term Borrowings InterestExpenseShortTermBorrowings	11000000	usd
CY2022Q1	us-gaap	Interest Expense Short Term Borrowings InterestExpenseShortTermBorrowings	0	usd
CY2023Q1	us-gaap	Interest Expense Long Term Debt InterestExpenseLongTermDebt	184000000	usd
CY2022Q1	us-gaap	Interest Expense Long Term Debt InterestExpenseLongTermDebt	65000000	usd
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CY2022Q1	stt	Other Interest Earning Liabilities OtherInterestEarningLiabilities	10000000	usd
CY2023Q1	us-gaap	Interest Expense InterestExpense	1261000000	usd
CY2022Q1	us-gaap	Interest Expense InterestExpense	12000000	usd
CY2023Q1	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	766000000	usd
CY2022Q1	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	509000000	usd
CY2022Q1	us-gaap	Other General Expense OtherGeneralExpense	89000000	usd
CY2023Q1	us-gaap	Professional Fees ProfessionalFees	106000000	usd
CY2022Q1	us-gaap	Professional Fees ProfessionalFees	97000000	usd
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CY2022Q1	stt	Regulatory Feesand Assessments RegulatoryFeesandAssessments	20000000	usd
CY2023Q1	us-gaap	Marketing And Advertising Expense MarketingAndAdvertisingExpense	23000000	usd
CY2022Q1	us-gaap	Marketing And Advertising Expense MarketingAndAdvertisingExpense	19000000	usd
CY2023Q1	stt	Bank Operations Expense BankOperationsExpense	11000000	usd
CY2022Q1	stt	Bank Operations Expense BankOperationsExpense	4000000	usd
CY2023Q1	stt	Securities Processing Expense SecuritiesProcessingExpense	10000000	usd
CY2022Q1	stt	Securities Processing Expense SecuritiesProcessingExpense	8000000	usd
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CY2022Q1	stt	Donations Expense DonationsExpense	6000000	usd
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CY2022Q1	us-gaap	Other Expenses OtherExpenses	243000000	usd
CY2021Q4	us-gaap	Restructuring Reserve RestructuringReserve	74000000	usd
CY2022Q1	us-gaap	Payments For Restructuring PaymentsForRestructuring	18000000	usd
CY2022Q1	us-gaap	Restructuring Reserve RestructuringReserve	56000000	usd
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CY2023Q1	us-gaap	Payments For Restructuring PaymentsForRestructuring	15000000	usd
CY2023Q1	us-gaap	Restructuring Reserve RestructuringReserve	73000000	usd
CY2023Q1	us-gaap	Net Income Loss NetIncomeLoss	549000000	usd
CY2022Q1	us-gaap	Net Income Loss NetIncomeLoss	604000000	usd
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CY2022Q1	stt	Dividends And Undistributed Earnings Allocated To Participating Securities DividendsAndUndistributedEarningsAllocatedToParticipatingSecurities	1000000	usd
CY2023Q1	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	525000000	usd
CY2023Q1	us-gaap	Net Income Loss Available To Common Stockholders Diluted NetIncomeLossAvailableToCommonStockholdersDiluted	525000000	usd
CY2022Q1	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	583000000	usd
CY2022Q1	us-gaap	Net Income Loss Available To Common Stockholders Diluted NetIncomeLossAvailableToCommonStockholdersDiluted	583000000	usd
CY2023Q1	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	341106000	shares
CY2022Q1	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	366542000	shares
CY2023Q1	stt	Stock Options And Stock Awards StockOptionsAndStockAwards	4366000	shares
CY2022Q1	stt	Stock Options And Stock Awards StockOptionsAndStockAwards	5495000	shares
CY2023Q1	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	345472000	shares
CY2022Q1	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	372037000	shares
CY2023Q1	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	23000	shares
CY2022Q1	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	8000	shares
CY2023Q1	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.54
CY2022Q1	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.59
CY2023Q1	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.52
CY2022Q1	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.57
CY2023Q1	us-gaap	Number Of Reportable Segments NumberOfReportableSegments	2	segment
CY2023Q1	stt	Fees And Commissions Servicing Fees FeesAndCommissionsServicingFees	1217000000	usd
CY2022Q1	stt	Fees And Commissions Servicing Fees FeesAndCommissionsServicingFees	1368000000	usd
CY2023Q1	stt	Fees And Commissions Management Fees FeesAndCommissionsManagementFees	457000000	usd
CY2022Q1	stt	Fees And Commissions Management Fees FeesAndCommissionsManagementFees	520000000	usd
CY2023Q1	stt	Fees And Commissions Foreign Exchange Trading Services FeesAndCommissionsForeignExchangeTradingServices	342000000	usd
CY2022Q1	stt	Fees And Commissions Foreign Exchange Trading Services FeesAndCommissionsForeignExchangeTradingServices	359000000	usd
CY2023Q1	stt	Fees And Commissions Securities Finance FeesAndCommissionsSecuritiesFinance	109000000	usd
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Files In Submission

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