Loans and Allowance for Credit Losses - Amortized Cost Basis (Details) - USD ($) $ in Millions	Dec. 31, 2022	Dec. 31, 2021
Financing Receivable, Credit Quality Indicator [Line Items]
2022	$ 5,839	$ 8,336
2021	5,104	794
2020	512	2,012
2019	1,636	1,457
2018	1,092	810
Prior	668	263
Revolving Loans	17,294	18,852
Loans, gross, excluding loans classified as held-for-sale	32,145	32,524
Accrued interest receivable	200	86
Financing receivable, held-for-sale	5	8
Investment grade
Financing Receivable, Credit Quality Indicator [Line Items]
Loans, gross, excluding loans classified as held-for-sale	27,176	27,196
Speculative
Financing Receivable, Credit Quality Indicator [Line Items]
Loans, gross, excluding loans classified as held-for-sale	4,491	4,984
Special mention
Financing Receivable, Credit Quality Indicator [Line Items]
Loans, gross, excluding loans classified as held-for-sale	379	180
Substandard
Financing Receivable, Credit Quality Indicator [Line Items]
Loans, gross, excluding loans classified as held-for-sale	99	164
Commercial and Financial
Financing Receivable, Credit Quality Indicator [Line Items]
Loans, gross, excluding loans classified as held-for-sale	29,160	29,970
Commercial and Financial \| Investment grade
Financing Receivable, Credit Quality Indicator [Line Items]
Loans, gross, excluding loans classified as held-for-sale	24,667	24,974
Commercial and Financial \| Speculative
Financing Receivable, Credit Quality Indicator [Line Items]
Loans, gross, excluding loans classified as held-for-sale	4,103	4,714
Commercial and Financial \| Special mention
Financing Receivable, Credit Quality Indicator [Line Items]
Loans, gross, excluding loans classified as held-for-sale	291	118
Commercial and Financial \| Substandard
Financing Receivable, Credit Quality Indicator [Line Items]
Loans, gross, excluding loans classified as held-for-sale	99	164
Commercial and Financial \| Geographic Distribution, Domestic
Financing Receivable, Credit Quality Indicator [Line Items]
2022	2,100	3,084
2021	1,164	415
2020	245	1,194
2019	908	512
2018	286	414
Prior	167	7
Revolving Loans	13,388	13,934
Loans, gross, excluding loans classified as held-for-sale	18,258	19,560
Commercial and Financial \| Geographic Distribution, Domestic \| Investment grade
Financing Receivable, Credit Quality Indicator [Line Items]
2022	1,577	1,988
2021	185	59
2020	72	347
2019	300	2
2018	0	37
Prior	9	0
Revolving Loans	12,843	13,591
Loans, gross, excluding loans classified as held-for-sale	14,986	16,024
Commercial and Financial \| Geographic Distribution, Domestic \| Speculative
Financing Receivable, Credit Quality Indicator [Line Items]
2022	523	1,096
2021	859	351
2020	168	706
2019	461	425
2018	236	350
Prior	151	7
Revolving Loans	545	343
Loans, gross, excluding loans classified as held-for-sale	2,943	3,278
Commercial and Financial \| Geographic Distribution, Domestic \| Special mention
Financing Receivable, Credit Quality Indicator [Line Items]
2022	0	0
2021	120	0
2020	0	70
2019	105	29
2018	19	19
Prior	0	0
Revolving Loans	0	0
Loans, gross, excluding loans classified as held-for-sale	244	118
Commercial and Financial \| Geographic Distribution, Domestic \| Substandard
Financing Receivable, Credit Quality Indicator [Line Items]
2022	0	0
2021	0	5
2020	5	71
2019	42	56
2018	31	8
Prior	7	0
Revolving Loans	0	0
Loans, gross, excluding loans classified as held-for-sale	85	140
Commercial and Financial \| Non-U.S.
Financing Receivable, Credit Quality Indicator [Line Items]
2022	3,220	4,648
2021	3,328	201
2020	118	264
2019	186	228
2018	144	120
Prior	0	31
Revolving Loans	3,906	4,918
Loans, gross, excluding loans classified as held-for-sale	10,902	10,410
Commercial and Financial \| Non-U.S. \| Investment grade
Financing Receivable, Credit Quality Indicator [Line Items]
2022	2,986	4,087
2021	2,799	0
2020	0	0
2019	0	0
2018	0	0
Prior	0	0
Revolving Loans	3,897	4,863
Loans, gross, excluding loans classified as held-for-sale	9,682	8,950
Commercial and Financial \| Non-U.S. \| Speculative
Financing Receivable, Credit Quality Indicator [Line Items]
2022	234	561
2021	529	201
2020	100	264
2019	181	204
2018	107	120
Prior	0	31
Revolving Loans	9	55
Loans, gross, excluding loans classified as held-for-sale	1,160	1,436
Commercial and Financial \| Non-U.S. \| Special mention
Financing Receivable, Credit Quality Indicator [Line Items]
2022	0
2021	0
2020	18
2019	5
2018	23
Prior	0
Revolving Loans	0
Loans, gross, excluding loans classified as held-for-sale	46
Commercial and Financial \| Non-U.S. \| Substandard
Financing Receivable, Credit Quality Indicator [Line Items]
2022	0	0
2021	0	0
2020	0	0
2019	0	24
2018	14	0
Prior	0	0
Revolving Loans	0	0
Loans, gross, excluding loans classified as held-for-sale	14	24
Commercial real estate
Financing Receivable, Credit Quality Indicator [Line Items]
Loans, gross, excluding loans classified as held-for-sale	2,985	2,554
Commercial real estate \| Investment grade
Financing Receivable, Credit Quality Indicator [Line Items]
Loans, gross, excluding loans classified as held-for-sale	2,509	2,222
Commercial real estate \| Speculative
Financing Receivable, Credit Quality Indicator [Line Items]
Loans, gross, excluding loans classified as held-for-sale	388	270
Commercial real estate \| Special mention
Financing Receivable, Credit Quality Indicator [Line Items]
Loans, gross, excluding loans classified as held-for-sale	88	62
Commercial real estate \| Substandard
Financing Receivable, Credit Quality Indicator [Line Items]
Loans, gross, excluding loans classified as held-for-sale	0	0
Commercial real estate \| Geographic Distribution, Domestic
Financing Receivable, Credit Quality Indicator [Line Items]
2022	519	604
2021	612	178
2020	149	554
2019	542	717
2018	662	276
Prior	501	225
Revolving Loans	0	0
Loans, gross, excluding loans classified as held-for-sale	2,985	2,554
Commercial real estate \| Geographic Distribution, Domestic \| Investment grade
Financing Receivable, Credit Quality Indicator [Line Items]
2022	519	580
2021	612	129
2020	100	383
2019	330	657
2018	511	276
Prior	436	197
Revolving Loans	0	0
Loans, gross, excluding loans classified as held-for-sale	2,508	2,222
Commercial real estate \| Geographic Distribution, Domestic \| Speculative
Financing Receivable, Credit Quality Indicator [Line Items]
2022	0	24
2021	0	49
2020	49	149
2019	163	20
2018	111	0
Prior	65	28
Revolving Loans	0	0
Loans, gross, excluding loans classified as held-for-sale	388	270
Commercial real estate \| Geographic Distribution, Domestic \| Special mention
Financing Receivable, Credit Quality Indicator [Line Items]
2022	0	0
2021	0	0
2020	0	22
2019	49	40
2018	40	0
Prior	0	0
Revolving Loans	0	0
Loans, gross, excluding loans classified as held-for-sale	$ 89	$ 62

Financing Receivable, Excluding Accrued Interest Before Allowance For Credit Loss, Excluding Held For Sale Receivables

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- Definition

Amount, before allowance for credit loss, of accrued interest on financing receivable.

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- Definition

Amortized cost excluding accrued interest, of financing receivable originated more than five years prior to current fiscal year. Excludes net investment in lease.

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-Publisher FASB
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- Definition

Amortized cost excluding accrued interest, of financing receivable that can be withdrawn, repaid, and redrawn.

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Amortized cost excluding accrued interest, of financing receivable originated four years prior to current fiscal year. Excludes net investment in lease.

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Amortized cost excluding accrued interest, of financing receivable originated three years prior to current fiscal year. Excludes net investment in lease.

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Amortized cost excluding accrued interest, of financing receivable originated in current fiscal year. Excludes net investment in lease.

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Amortized cost excluding accrued interest, of financing receivable originated two years prior to current fiscal year. Excludes net investment in lease.

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Amortized cost excluding accrued interest of financing receivable originated in fiscal year prior to current fiscal year. Excludes net investment in lease.

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- Definition

Amount, before valuation allowance, of financing receivable classified as held-for-sale.

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