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Variable Interest Entities and Securitizations - Carrying Amount of Consolidated and Unconsolidated VIEs (Details) - USD ($) $ in Millions | Dec. 31, 2022 | Dec. 31, 2021
--- | --- | ---
Variable Interest Entity [Line Items] |  |
Maximum Exposure to Loss | $ 5,281 | $ 5,157
Carrying Amount of Assets | 455,249 | 432,381
Carrying Amount of Liabilities | 402,667 | 371,352
Consolidated |  |
Variable Interest Entity [Line Items] |  |
Carrying Amount of Assets | 31,045 | 26,458
Carrying Amount of Liabilities | 17,908 | 15,256
Unconsolidated |  |
Variable Interest Entity [Line Items] |  |
Carrying Amount of Assets | 5,281 | 5,157
Carrying Amount of Liabilities | 1,596 | 1,454
Affordable housing entities |  |
Variable Interest Entity [Line Items] |  |
Maximum Exposure to Loss | 4,944 | 4,774
VIE, nonconsolidated, carrying amount of assets included in certain investment structures | 2,300 | 2,200
VIE, nonconsolidated, carrying amount of liabilities included in certain investment structures | 616 | 568
Affordable housing entities | Consolidated |  |
Variable Interest Entity [Line Items] |  |
Carrying Amount of Assets | 261 | 263
Carrying Amount of Liabilities | 19 | 27
Affordable housing entities | Unconsolidated |  |
Variable Interest Entity [Line Items] |  |
Carrying Amount of Assets | 4,944 | 4,774
Carrying Amount of Liabilities | 1,596 | 1,454
Entities that provide capital to low-income and rural communities |  |
Variable Interest Entity [Line Items] |  |
Maximum Exposure to Loss | 0 | 0
Entities that provide capital to low-income and rural communities | Consolidated |  |
Variable Interest Entity [Line Items] |  |
Carrying Amount of Assets | 2,301 | 2,074
Carrying Amount of Liabilities | 10 | 26
Entities that provide capital to low-income and rural communities | Unconsolidated |  |
Variable Interest Entity [Line Items] |  |
Carrying Amount of Assets | 0 | 0
Carrying Amount of Liabilities | 0 | 0
Other |  |
Variable Interest Entity [Line Items] |  |
Maximum Exposure to Loss | 337 | 383
Other | Consolidated |  |
Variable Interest Entity [Line Items] |  |
Carrying Amount of Assets | 0 | 0
Carrying Amount of Liabilities | 0 | 0
Other | Unconsolidated |  |
Variable Interest Entity [Line Items] |  |
Carrying Amount of Assets | 337 | 383
Carrying Amount of Liabilities | 0 | 0
Total other VIEs |  |
Variable Interest Entity [Line Items] |  |
Maximum Exposure to Loss | 5,281 | 5,157
Total other VIEs | Consolidated |  |
Variable Interest Entity [Line Items] |  |
Carrying Amount of Assets | 2,562 | 2,337
Carrying Amount of Liabilities | 29 | 53
Total other VIEs | Unconsolidated |  |
Variable Interest Entity [Line Items] |  |
Carrying Amount of Assets | 5,281 | 5,157
Carrying Amount of Liabilities | 1,596 | 1,454
Credit card loan securitizations |  |
Variable Interest Entity [Line Items] |  |
Maximum Exposure to Loss | 0 | 0
Credit card loan securitizations | Consolidated |  |
Variable Interest Entity [Line Items] |  |
Carrying Amount of Assets | 23,620 | 21,569
Carrying Amount of Liabilities | 13,877 | 13,016
Credit card loan securitizations | Unconsolidated |  |
Variable Interest Entity [Line Items] |  |
Carrying Amount of Assets | 0 | 0
Carrying Amount of Liabilities | 0 | 0
Auto loan securitizations |  |
Variable Interest Entity [Line Items] |  |
Maximum Exposure to Loss | 0 | 0
Auto loan securitizations | Consolidated |  |
Variable Interest Entity [Line Items] |  |
Carrying Amount of Assets | 4,863 | 2,552
Carrying Amount of Liabilities | 4,002 | 2,187
Auto loan securitizations | Unconsolidated |  |
Variable Interest Entity [Line Items] |  |
Carrying Amount of Assets | 0 | 0
Carrying Amount of Liabilities | 0 | 0
Total securitization-related VIEs |  |
Variable Interest Entity [Line Items] |  |
Maximum Exposure to Loss | 0 | 0
Total securitization-related VIEs | Consolidated |  |
Variable Interest Entity [Line Items] |  |
Carrying Amount of Assets | 28,483 | 24,121
Carrying Amount of Liabilities | 17,879 | 15,203
Total securitization-related VIEs | Unconsolidated |  |
Variable Interest Entity [Line Items] |  |
Carrying Amount of Assets | 0 | 0
Carrying Amount of Liabilities | $ 0 | $ 0

X
- Definition In certain investment structures, we consolidate a VIE which in turn holds as its primary asset an investment in an unconsolidated VIE. This concept represents the carrying amount of assets related to these investment structures. + References No definition available. + Details
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- Definition Sum of the carrying amounts as of the balance sheet date of all assets that are recognized. 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