Annual report pursuant to Section 13 and 15(d)

Outstanding Loans and Leases and Allowance for Credit Losses - Credit Card and Other Consumer - Credit Quality Indicators (Details)

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Outstanding Loans and Leases and Allowance for Credit Losses - Credit Card and Other Consumer - Credit Quality Indicators (Details) - USD ($)
$ in Millions
Dec. 31, 2021
Dec. 31, 2020
Financing Receivable, Credit Quality Indicator [Line Items]    
Total as of December 31, 2021 $ 979,124 $ 927,861
Credit Card and Direct/ Indirect Consumer | Direct/indirect consumer    
Financing Receivable, Credit Quality Indicator [Line Items]    
Total as of December 31, 2021 103,560 91,363
Revolving Loans 54,354 44,337
Originated in current fiscal year 22,060 16,226
Originated in fiscal year before current fiscal year 10,883 13,477
Originated two years before current fiscal year 8,110 7,490
Originated three years before current fiscal year 3,447 4,845
Originated four years before current fiscal year 2,185 2,557
Prior 2,521 2,431
Loans and lease receivable, securities based lending 54,200 44,100
Credit Card and Direct/ Indirect Consumer | Direct/indirect consumer | Less than 620    
Financing Receivable, Credit Quality Indicator [Line Items]    
Total as of December 31, 2021 685 959
Revolving Loans 13 19
Originated in current fiscal year 179 111
Originated in fiscal year before current fiscal year 115 200
Originated two years before current fiscal year 129 175
Originated three years before current fiscal year 79 243
Originated four years before current fiscal year 101 148
Prior 69 63
Credit Card and Direct/ Indirect Consumer | Direct/indirect consumer | Greater than or equal to 620 and less than 680    
Financing Receivable, Credit Quality Indicator [Line Items]    
Total as of December 31, 2021 2,313 2,143
Revolving Loans 14 20
Originated in current fiscal year 1,170 653
Originated in fiscal year before current fiscal year 414 559
Originated two years before current fiscal year 313 329
Originated three years before current fiscal year 148 301
Originated four years before current fiscal year 134 176
Prior 120 105
Credit Card and Direct/ Indirect Consumer | Direct/indirect consumer | Greater than or equal to 680 and less than 740    
Financing Receivable, Credit Quality Indicator [Line Items]    
Total as of December 31, 2021 8,530 7,431
Revolving Loans 60 80
Originated in current fiscal year 4,552 2,848
Originated in fiscal year before current fiscal year 1,659 2,015
Originated two years before current fiscal year 1,126 1,033
Originated three years before current fiscal year 466 739
Originated four years before current fiscal year 314 400
Prior 353 316
Credit Card and Direct/ Indirect Consumer | Direct/indirect consumer | Greater than or equal to 740    
Financing Receivable, Credit Quality Indicator [Line Items]    
Total as of December 31, 2021 37,164 36,064
Revolving Loans 94 120
Originated in current fiscal year 15,876 12,540
Originated in fiscal year before current fiscal year 8,642 10,588
Originated two years before current fiscal year 6,465 5,869
Originated three years before current fiscal year 2,679 3,495
Originated four years before current fiscal year 1,573 1,781
Prior 1,835 1,671
Credit Card and Direct/ Indirect Consumer | Direct/indirect consumer | Other internal credit metrics    
Financing Receivable, Credit Quality Indicator [Line Items]    
Total as of December 31, 2021 54,868 44,766
Revolving Loans 54,173 44,098
Originated in current fiscal year 283 74
Originated in fiscal year before current fiscal year 53 115
Originated two years before current fiscal year 77 84
Originated three years before current fiscal year 75 67
Originated four years before current fiscal year 63 52
Prior 144 276
Credit Card and Direct/ Indirect Consumer | Credit card    
Financing Receivable, Credit Quality Indicator [Line Items]    
Revolving Loans 80,838 78,067
Total Credit Card as of December 31, 2021 81,438 78,708
Revolving Loans Converted to Term Loans 600 641
Credit Card and Direct/ Indirect Consumer | Credit card | Less than 620    
Financing Receivable, Credit Quality Indicator [Line Items]    
Revolving Loans 2,857 3,832
Total Credit Card as of December 31, 2021 3,017 4,018
Revolving Loans Converted to Term Loans 160 186
Credit Card and Direct/ Indirect Consumer | Credit card | Greater than or equal to 620 and less than 680    
Financing Receivable, Credit Quality Indicator [Line Items]    
Revolving Loans 9,064 9,201
Total Credit Card as of December 31, 2021 9,264 9,419
Revolving Loans Converted to Term Loans 200 218
Credit Card and Direct/ Indirect Consumer | Credit card | Greater than or equal to 680 and less than 740    
Financing Receivable, Credit Quality Indicator [Line Items]    
Revolving Loans 28,155 27,392
Total Credit Card as of December 31, 2021 28,347 27,585
Revolving Loans Converted to Term Loans 192 193
Credit Card and Direct/ Indirect Consumer | Credit card | Greater than or equal to 740    
Financing Receivable, Credit Quality Indicator [Line Items]    
Revolving Loans 40,762 37,642
Total Credit Card as of December 31, 2021 40,810 37,686
Revolving Loans Converted to Term Loans 48 44
Credit Card and Direct/ Indirect Consumer | Credit card | Other internal credit metrics    
Financing Receivable, Credit Quality Indicator [Line Items]    
Revolving Loans 0 0
Total Credit Card as of December 31, 2021 0 0
Revolving Loans Converted to Term Loans $ 0 $ 0