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Loans - Consumer Banking Portfolio by Credit Quality Indicator (Details) - USD ($) $ in Millions | Mar. 31, 2023 | Dec. 31, 2022
--- | --- | ---
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Total | $ 308,836 | $ 312,331
Consumer Banking |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
2023 | 6,139 | 31,969
2022 | 29,493 | 25,937
2021 | 23,584 | 11,591
2020 | 10,268 | 6,039
2019 | 5,173 | 2,589
Prior | 3,080 | 1,372
Total Term Loans | 77,737 | 79,497
Revolving Loans | 408 | 422
Revolving Loans Converted to Term | 6 | 6
Total | 78,151 | 79,925
Auto | Consumer Banking |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
2023 | 6,102 | 31,801
2022 | 29,343 | 25,807
2021 | 23,470 | 11,509
2020 | 10,190 | 5,906
2019 | 5,045 | 2,459
Prior | 2,502 | 891
Total Term Loans | 76,652 | 78,373
Revolving Loans | 0 | 0
Revolving Loans Converted to Term | 0 | 0
Total | 76,652 | 78,373
Retail banking | Consumer Banking |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
2023 | 37 | 168
2022 | 150 | 130
2021 | 114 | 82
2020 | 78 | 133
2019 | 128 | 130
Prior | 578 | 481
Total Term Loans | 1,085 | 1,124
Revolving Loans | 408 | 422
Revolving Loans Converted to Term | 6 | 6
Total | 1,499 | 1,552
Current | Retail banking | Consumer Banking |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
2023 | 37 | 166
2022 | 150 | 128
2021 | 112 | 82
2020 | 77 | 133
2019 | 128 | 127
Prior | 567 | 470
Total Term Loans | 1,071 | 1,106
Revolving Loans | 397 | 408
Revolving Loans Converted to Term | 5 | 4
Total | 1,473 | 1,518
30-59 days | Retail banking | Consumer Banking |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
2023 | 0 | 2
2022 | 0 | 1
2021 | 1 | 0
2020 | 0 | 0
2019 | 0 | 0
Prior | 1 | 2
Total Term Loans | 2 | 5
Revolving Loans | 5 | 8
Revolving Loans Converted to Term | 0 | 0
Total | 7 | 13
60-89 days | Retail banking | Consumer Banking |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
2023 | 0 | 0
2022 | 0 | 1
2021 | 0 | 0
2020 | 1 | 0
2019 | 0 | 0
Prior | 0 | 1
Total Term Loans | 1 | 2
Revolving Loans | 2 | 2
Revolving Loans Converted to Term | 0 | 0
Total | 3 | 4
Greater than 90 days | Retail banking | Consumer Banking |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
2023 | 0 | 0
2022 | 0 | 0
2021 | 1 | 0
2020 | 0 | 0
2019 | 0 | 3
Prior | 10 | 8
Total Term Loans | 11 | 11
Revolving Loans | 4 | 4
Revolving Loans Converted to Term | 1 | 2
Total | 16 | 17
Greater than 660 | Auto | Consumer Banking |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
2023 | 3,015 | 17,872
2022 | 16,404 | 14,246
2021 | 12,968 | 5,354
2020 | 4,729 | 2,595
2019 | 2,193 | 1,032
Prior | 985 | 328
Total Term Loans | 40,294 | 41,427
Revolving Loans | 0 | 0
Revolving Loans Converted to Term | 0 | 0
Total | 40,294 | 41,427
621-660 | Auto | Consumer Banking |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
2023 | 1,275 | 6,212
2022 | 5,760 | 5,060
2021 | 4,598 | 2,257
2020 | 1,998 | 1,167
2019 | 1,001 | 513
Prior | 525 | 185
Total Term Loans | 15,157 | 15,394
Revolving Loans | 0 | 0
Revolving Loans Converted to Term | 0 | 0
Total | 15,157 | 15,394
620 or below | Auto | Consumer Banking |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
2023 | 1,812 | 7,717
2022 | 7,179 | 6,501
2021 | 5,904 | 3,898
2020 | 3,463 | 2,144
2019 | 1,851 | 914
Prior | 992 | 378
Total Term Loans | 21,201 | 21,552
Revolving Loans | 0 | 0
Revolving Loans Converted to Term | 0 | 0
Total | $ 21,201 | $ 21,552

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