Long-Term Debt - Schedule of Long Term Debt (Details) - USD ($) $ in Millions	12 Months Ended
Dec. 31, 2021	Dec. 31, 2020
Debt Instrument [Line Items]
Long-term finance leases	$ 135	$ 55
Total long-term debt	13,475	13,805
Fair Value Hedges
Debt Instrument [Line Items]
Decrease in carrying value of long-term debt	$ 450	691
Senior notes \| 3.55% notes due 2025
Debt Instrument [Line Items]
Interest rate on debt	3.55%
Senior notes \| 3.7% notes due in 2023
Debt Instrument [Line Items]
Interest rate on debt	3.70%
Senior notes \| 3.3% notes due 2024
Debt Instrument [Line Items]
Interest rate on debt	3.30%
Senior notes \| 2.354% notes due 2025
Debt Instrument [Line Items]
Interest rate on debt	2.354%
Senior notes \| 2.200% notes due 2031
Debt Instrument [Line Items]
Interest rate on debt	2.20%
Senior notes \| 2.400% notes due 2030
Debt Instrument [Line Items]
Interest rate on debt	2.40%
Senior notes \| 2.65% notes due 2026
Debt Instrument [Line Items]
Interest rate on debt	2.65%
Senior notes \| 2.653% notes due 2023
Debt Instrument [Line Items]
Interest rate on debt	2.653%
Senior notes \| 2.825% notes due 2023
Debt Instrument [Line Items]
Interest rate on debt	2.825%
Senior notes \| 4.141% notes due 2029
Debt Instrument [Line Items]
Interest rate on debt	4.141%
Senior notes \| 3.776% notes due 2024
Debt Instrument [Line Items]
Interest rate on debt	3.776%
Senior notes \| 2.901% notes due 2026
Debt Instrument [Line Items]
Interest rate on debt	2.901%
Senior notes \| 3.152% notes due 2031
Debt Instrument [Line Items]
Interest rate on debt	3.152%
Senior notes \| 1.684% notes due 2027
Debt Instrument [Line Items]
Interest rate on debt	1.684%
Senior notes \| 7.35% notes due 2026
Debt Instrument [Line Items]
Interest rate on debt	7.35%
Senior notes \| 4.375% notes due 2021
Debt Instrument [Line Items]
Interest rate on debt	4.375%
Senior notes \| 1.95% notes due 2021
Debt Instrument [Line Items]
Interest rate on debt	1.95%
Subordinated notes \| 3.1% subordinated notes due 2023
Debt Instrument [Line Items]
Interest rate on debt	3.10%
Subordinated notes \| 3.031% notes due 2034
Debt Instrument [Line Items]
Interest rate on debt	3.031%
Parent Company and Non-banking Subsidiaries \| Senior notes \| 3.55% notes due 2025
Debt Instrument [Line Items]
Long-term debt	$ 1,370	1,413
Parent Company and Non-banking Subsidiaries \| Senior notes \| 3.7% notes due in 2023
Debt Instrument [Line Items]
Long-term debt	1,043	1,070
Parent Company and Non-banking Subsidiaries \| Senior notes \| 3.3% notes due 2024
Debt Instrument [Line Items]
Long-term debt	1,040	1,075
Parent Company and Non-banking Subsidiaries \| Senior notes \| 2.354% notes due 2025
Debt Instrument [Line Items]
Long-term debt	1,019	1,047
Parent Company and Non-banking Subsidiaries \| Senior notes \| 2.200% notes due 2031
Debt Instrument [Line Items]
Long-term debt	843	0
Parent Company and Non-banking Subsidiaries \| Senior notes \| 2.400% notes due 2030
Debt Instrument [Line Items]
Long-term debt	803	821
Parent Company and Non-banking Subsidiaries \| Senior notes \| 2.65% notes due 2026
Debt Instrument [Line Items]
Long-term debt	779	796
Parent Company and Non-banking Subsidiaries \| Senior notes \| 2.653% notes due 2023
Debt Instrument [Line Items]
Long-term debt	754	766
Parent Company and Non-banking Subsidiaries \| Senior notes \| 2.825% notes due 2023
Debt Instrument [Line Items]
Long-term debt	749	748
Parent Company and Non-banking Subsidiaries \| Senior notes \| 4.141% notes due 2029
Debt Instrument [Line Items]
Long-term debt	583	594
Parent Company and Non-banking Subsidiaries \| Senior notes \| 3.776% notes due 2024
Debt Instrument [Line Items]
Long-term debt	523	538
Parent Company and Non-banking Subsidiaries \| Senior notes \| 2.901% notes due 2026
Debt Instrument [Line Items]
Long-term debt	498	498
Parent Company and Non-banking Subsidiaries \| Senior notes \| 3.152% notes due 2031
Debt Instrument [Line Items]
Long-term debt	498	497
Parent Company and Non-banking Subsidiaries \| Senior notes \| 1.684% notes due 2027
Debt Instrument [Line Items]
Long-term debt	497	0
Parent Company and Non-banking Subsidiaries \| Senior notes \| 7.35% notes due 2026
Debt Instrument [Line Items]
Long-term debt	150	150
Parent Company and Non-banking Subsidiaries \| Senior notes \| 4.375% notes due 2021
Debt Instrument [Line Items]
Long-term debt	0	752
Parent Company and Non-banking Subsidiaries \| Senior notes \| 1.95% notes due 2021
Debt Instrument [Line Items]
Long-term debt	0	753
Parent Company and Non-banking Subsidiaries \| Subordinated notes \| 3.1% subordinated notes due 2023
Debt Instrument [Line Items]
Long-term debt	1,022	1,039
Parent Company and Non-banking Subsidiaries \| Subordinated notes \| 3.031% notes due 2034
Debt Instrument [Line Items]
Long-term debt	541	546
Parent Company and Non-banking Subsidiaries \| Junior subordinated debentures \| Floating Rate Subordinated Debentures Due 2047
Debt Instrument [Line Items]
Long-term debt	499	499
Parent Company and Non-banking Subsidiaries \| Junior subordinated debentures \| Floating-rate subordinated notes due to State Street Capital Trust I in 2028
Debt Instrument [Line Items]
Long-term debt	100	100
State Street Bank
Debt Instrument [Line Items]
Long-term finance leases	$ 164	$ 103

Increase (Decrease) In Carrying Value Of Long Term Debt

No definition available.

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- Definition

Contractual interest rate for funds borrowed, under the debt agreement.

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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- Definition

Amount, after accumulated amortization, of right-of-use asset from finance lease.

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- Definition

Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

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- Definition

Amount of long-term debt and lease obligation, including portion classified as current.

+ References

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