Loans - Summary of Concentration of Secured and Unsecured Loans (Detail) - USD ($)
$ in Millions |
12 Months Ended |
Dec. 31, 2021 |
Dec. 31, 2020 |
| Financing Receivable, Recorded Investment [Line Items] |
|
|
| Loans and Leases Receivable, Gross |
$ 162,135
|
$ 119,989
|
| Concentration Risk,Percentage |
100.00%
|
100.00%
|
| Loans receivable at fair value |
$ 10,769
|
$ 13,625
|
| Corporate [Member] |
|
|
| Financing Receivable, Recorded Investment [Line Items] |
|
|
| Loans and Leases Receivable, Gross |
$ 55,927
|
$ 48,659
|
| Concentration Risk,Percentage |
100.00%
|
100.00%
|
| Loans receivable at fair value |
$ 2,492
|
$ 2,751
|
| Wealth management [Member] |
|
|
| Financing Receivable, Recorded Investment [Line Items] |
|
|
| Loans and Leases Receivable, Gross |
$ 43,998
|
$ 33,023
|
| Concentration Risk,Percentage |
100.00%
|
100.00%
|
| Loans receivable at fair value |
$ 5,936
|
$ 7,872
|
| Commercial real estate [Member] |
|
|
| Financing Receivable, Recorded Investment [Line Items] |
|
|
| Loans and Leases Receivable, Gross |
$ 25,883
|
$ 20,290
|
| Concentration Risk,Percentage |
100.00%
|
100.00%
|
| Loans receivable at fair value |
$ 1,588
|
$ 1,961
|
| Residential real estate [Member] |
|
|
| Financing Receivable, Recorded Investment [Line Items] |
|
|
| Loans and Leases Receivable, Gross |
$ 15,913
|
$ 5,750
|
| Concentration Risk,Percentage |
100.00%
|
100.00%
|
| Loans receivable at fair value |
$ 320
|
$ 494
|
| Installment [Member] |
|
|
| Financing Receivable, Recorded Investment [Line Items] |
|
|
| Loans and Leases Receivable, Gross |
$ 3,672
|
$ 3,823
|
| Concentration Risk,Percentage |
100.00%
|
100.00%
|
| Credit Card Receivable [Member] |
|
|
| Financing Receivable, Recorded Investment [Line Items] |
|
|
| Loans and Leases Receivable, Gross |
$ 8,212
|
$ 4,270
|
| Concentration Risk,Percentage |
100.00%
|
100.00%
|
| Other [Member] |
|
|
| Financing Receivable, Recorded Investment [Line Items] |
|
|
| Loans and Leases Receivable, Gross |
$ 8,530
|
$ 4,174
|
| Concentration Risk,Percentage |
100.00%
|
100.00%
|
| Loans receivable at fair value |
$ 433
|
$ 547
|
| Internally rated loans [Member] |
|
|
| Financing Receivable, Recorded Investment [Line Items] |
|
|
| Loans and Leases Receivable, Gross |
162,135
|
119,989
|
| Internally rated loans [Member] | Corporate [Member] |
|
|
| Financing Receivable, Recorded Investment [Line Items] |
|
|
| Loans and Leases Receivable, Gross |
55,927
|
48,659
|
| Internally rated loans [Member] | Wealth management [Member] |
|
|
| Financing Receivable, Recorded Investment [Line Items] |
|
|
| Loans and Leases Receivable, Gross |
43,998
|
33,023
|
| Internally rated loans [Member] | Commercial real estate [Member] |
|
|
| Financing Receivable, Recorded Investment [Line Items] |
|
|
| Loans and Leases Receivable, Gross |
25,883
|
20,290
|
| Internally rated loans [Member] | Residential real estate [Member] |
|
|
| Financing Receivable, Recorded Investment [Line Items] |
|
|
| Loans and Leases Receivable, Gross |
15,913
|
5,750
|
| Internally rated loans [Member] | Installment [Member] |
|
|
| Financing Receivable, Recorded Investment [Line Items] |
|
|
| Loans and Leases Receivable, Gross |
3,672
|
3,823
|
| Internally rated loans [Member] | Credit Card Receivable [Member] |
|
|
| Financing Receivable, Recorded Investment [Line Items] |
|
|
| Loans and Leases Receivable, Gross |
8,212
|
4,270
|
| Internally rated loans [Member] | Other [Member] |
|
|
| Financing Receivable, Recorded Investment [Line Items] |
|
|
| Loans and Leases Receivable, Gross |
8,530
|
4,174
|
| Amortized cost [Member] |
|
|
| Financing Receivable, Recorded Investment [Line Items] |
|
|
| Loans and Leases Receivable, Gross |
143,507
|
103,565
|
| Amortized cost [Member] | Corporate [Member] |
|
|
| Financing Receivable, Recorded Investment [Line Items] |
|
|
| Loans and Leases Receivable, Gross |
50,960
|
44,778
|
| Amortized cost [Member] | Wealth management [Member] |
|
|
| Financing Receivable, Recorded Investment [Line Items] |
|
|
| Loans and Leases Receivable, Gross |
38,062
|
25,151
|
| Amortized cost [Member] | Commercial real estate [Member] |
|
|
| Financing Receivable, Recorded Investment [Line Items] |
|
|
| Loans and Leases Receivable, Gross |
21,150
|
17,096
|
| Amortized cost [Member] | Residential real estate [Member] |
|
|
| Financing Receivable, Recorded Investment [Line Items] |
|
|
| Loans and Leases Receivable, Gross |
15,493
|
5,236
|
| Amortized cost [Member] | Credit Card Receivable [Member] |
|
|
| Financing Receivable, Recorded Investment [Line Items] |
|
|
| Loans and Leases Receivable, Gross |
8,212
|
4,270
|
| Amortized cost [Member] | Other [Member] |
|
|
| Financing Receivable, Recorded Investment [Line Items] |
|
|
| Loans and Leases Receivable, Gross |
5,958
|
3,211
|
| Amortized cost [Member] | Internally rated loans [Member] |
|
|
| Financing Receivable, Recorded Investment [Line Items] |
|
|
| Loans and Leases Receivable, Gross |
143,507
|
103,565
|
| Fair Value [Member] |
|
|
| Financing Receivable, Recorded Investment [Line Items] |
|
|
| Loans receivable at fair value |
10,769
|
13,625
|
| Fair Value [Member] | Corporate [Member] |
|
|
| Financing Receivable, Recorded Investment [Line Items] |
|
|
| Loans receivable at fair value |
2,492
|
2,751
|
| Fair Value [Member] | Wealth management [Member] |
|
|
| Financing Receivable, Recorded Investment [Line Items] |
|
|
| Loans receivable at fair value |
5,936
|
7,872
|
| Fair Value [Member] | Commercial real estate [Member] |
|
|
| Financing Receivable, Recorded Investment [Line Items] |
|
|
| Loans receivable at fair value |
1,588
|
1,961
|
| Fair Value [Member] | Residential real estate [Member] |
|
|
| Financing Receivable, Recorded Investment [Line Items] |
|
|
| Loans receivable at fair value |
320
|
494
|
| Fair Value [Member] | Credit Card Receivable [Member] |
|
|
| Financing Receivable, Recorded Investment [Line Items] |
|
|
| Loans receivable at fair value |
0
|
0
|
| Fair Value [Member] | Other [Member] |
|
|
| Financing Receivable, Recorded Investment [Line Items] |
|
|
| Loans receivable at fair value |
433
|
547
|
| Fair Value [Member] | Internally rated loans [Member] |
|
|
| Financing Receivable, Recorded Investment [Line Items] |
|
|
| Loans receivable at fair value |
10,769
|
13,625
|
| Held for sale [Member] |
|
|
| Financing Receivable, Recorded Investment [Line Items] |
|
|
| Loans Receivable Held-for-sale, Amount |
7,859
|
2,799
|
| Held for sale [Member] | Corporate [Member] |
|
|
| Financing Receivable, Recorded Investment [Line Items] |
|
|
| Loans Receivable Held-for-sale, Amount |
2,475
|
1,130
|
| Held for sale [Member] | Wealth management [Member] |
|
|
| Financing Receivable, Recorded Investment [Line Items] |
|
|
| Loans Receivable Held-for-sale, Amount |
0
|
0
|
| Held for sale [Member] | Commercial real estate [Member] |
|
|
| Financing Receivable, Recorded Investment [Line Items] |
|
|
| Loans Receivable Held-for-sale, Amount |
3,145
|
1,233
|
| Held for sale [Member] | Residential real estate [Member] |
|
|
| Financing Receivable, Recorded Investment [Line Items] |
|
|
| Loans Receivable Held-for-sale, Amount |
100
|
20
|
| Held for sale [Member] | Credit Card Receivable [Member] |
|
|
| Financing Receivable, Recorded Investment [Line Items] |
|
|
| Loans Receivable Held-for-sale, Amount |
0
|
0
|
| Held for sale [Member] | Other [Member] |
|
|
| Financing Receivable, Recorded Investment [Line Items] |
|
|
| Loans Receivable Held-for-sale, Amount |
2,139
|
416
|
| Held for sale [Member] | Internally rated loans [Member] |
|
|
| Financing Receivable, Recorded Investment [Line Items] |
|
|
| Loans Receivable Held-for-sale, Amount |
$ 7,859
|
$ 2,799
|
| Loans Receivable [Member] | Internally rated loans [Member] |
|
|
| Financing Receivable, Recorded Investment [Line Items] |
|
|
| Concentration Risk,Percentage |
100.00%
|
100.00%
|
| Loans Receivable [Member] | Secured Loans [Member] | Internally rated loans [Member] |
|
|
| Financing Receivable, Recorded Investment [Line Items] |
|
|
| Concentration Risk,Percentage |
82.00%
|
82.00%
|
| Loans Receivable [Member] | Unsecured Loans [Member] | Internally rated loans [Member] |
|
|
| Financing Receivable, Recorded Investment [Line Items] |
|
|
| Concentration Risk,Percentage |
18.00%
|
18.00%
|
| Loans Receivable [Member] | Investment-Grade [Member] | Internally rated loans [Member] |
|
|
| Financing Receivable, Recorded Investment [Line Items] |
|
|
| Loans and Leases Receivable, Gross |
$ 54,874
|
$ 35,840
|
| Concentration Risk,Percentage |
100.00%
|
100.00%
|
| Loans Receivable [Member] | Investment-Grade [Member] | Internally rated loans [Member] | Corporate [Member] |
|
|
| Financing Receivable, Recorded Investment [Line Items] |
|
|
| Loans and Leases Receivable, Gross |
$ 15,370
|
$ 9,478
|
| Loans Receivable [Member] | Investment-Grade [Member] | Internally rated loans [Member] | Wealth management [Member] |
|
|
| Financing Receivable, Recorded Investment [Line Items] |
|
|
| Loans and Leases Receivable, Gross |
31,476
|
22,098
|
| Loans Receivable [Member] | Investment-Grade [Member] | Internally rated loans [Member] | Commercial real estate [Member] |
|
|
| Financing Receivable, Recorded Investment [Line Items] |
|
|
| Loans and Leases Receivable, Gross |
3,986
|
1,792
|
| Loans Receivable [Member] | Investment-Grade [Member] | Internally rated loans [Member] | Residential real estate [Member] |
|
|
| Financing Receivable, Recorded Investment [Line Items] |
|
|
| Loans and Leases Receivable, Gross |
1,112
|
636
|
| Loans Receivable [Member] | Investment-Grade [Member] | Internally rated loans [Member] | Installment [Member] |
|
|
| Financing Receivable, Recorded Investment [Line Items] |
|
|
| Loans and Leases Receivable, Gross |
0
|
0
|
| Loans Receivable [Member] | Investment-Grade [Member] | Internally rated loans [Member] | Credit Card Receivable [Member] |
|
|
| Financing Receivable, Recorded Investment [Line Items] |
|
|
| Loans and Leases Receivable, Gross |
0
|
0
|
| Loans Receivable [Member] | Investment-Grade [Member] | Internally rated loans [Member] | Other [Member] |
|
|
| Financing Receivable, Recorded Investment [Line Items] |
|
|
| Loans and Leases Receivable, Gross |
$ 2,930
|
$ 1,836
|
| Loans Receivable [Member] | Investment-Grade [Member] | Secured Loans [Member] | Internally rated loans [Member] |
|
|
| Financing Receivable, Recorded Investment [Line Items] |
|
|
| Concentration Risk,Percentage |
85.00%
|
83.00%
|
| Loans Receivable [Member] | Investment-Grade [Member] | Unsecured Loans [Member] | Internally rated loans [Member] |
|
|
| Financing Receivable, Recorded Investment [Line Items] |
|
|
| Concentration Risk,Percentage |
15.00%
|
17.00%
|
| Loans Receivable [Member] | Investment-Grade [Member] | Amortized cost [Member] | Internally rated loans [Member] |
|
|
| Financing Receivable, Recorded Investment [Line Items] |
|
|
| Loans and Leases Receivable, Gross |
$ 50,923
|
$ 33,532
|
| Loans Receivable [Member] | Investment-Grade [Member] | Fair Value [Member] | Internally rated loans [Member] |
|
|
| Financing Receivable, Recorded Investment [Line Items] |
|
|
| Loans receivable at fair value |
2,301
|
2,084
|
| Loans Receivable [Member] | Investment-Grade [Member] | Held for sale [Member] | Internally rated loans [Member] |
|
|
| Financing Receivable, Recorded Investment [Line Items] |
|
|
| Loans Receivable Held-for-sale, Amount |
1,650
|
224
|
| Loans Receivable [Member] | Non-Investment-Grade [Member] | Internally rated loans [Member] |
|
|
| Financing Receivable, Recorded Investment [Line Items] |
|
|
| Loans and Leases Receivable, Gross |
$ 84,560
|
$ 66,327
|
| Concentration Risk,Percentage |
100.00%
|
100.00%
|
| Loans Receivable [Member] | Non-Investment-Grade [Member] | Internally rated loans [Member] | Corporate [Member] |
|
|
| Financing Receivable, Recorded Investment [Line Items] |
|
|
| Loans and Leases Receivable, Gross |
$ 40,389
|
$ 38,704
|
| Loans Receivable [Member] | Non-Investment-Grade [Member] | Internally rated loans [Member] | Wealth management [Member] |
|
|
| Financing Receivable, Recorded Investment [Line Items] |
|
|
| Loans and Leases Receivable, Gross |
5,730
|
5,331
|
| Loans Receivable [Member] | Non-Investment-Grade [Member] | Internally rated loans [Member] | Commercial real estate [Member] |
|
|
| Financing Receivable, Recorded Investment [Line Items] |
|
|
| Loans and Leases Receivable, Gross |
21,523
|
17,480
|
| Loans Receivable [Member] | Non-Investment-Grade [Member] | Internally rated loans [Member] | Residential real estate [Member] |
|
|
| Financing Receivable, Recorded Investment [Line Items] |
|
|
| Loans and Leases Receivable, Gross |
13,779
|
3,852
|
| Loans Receivable [Member] | Non-Investment-Grade [Member] | Internally rated loans [Member] | Installment [Member] |
|
|
| Financing Receivable, Recorded Investment [Line Items] |
|
|
| Loans and Leases Receivable, Gross |
0
|
0
|
| Loans Receivable [Member] | Non-Investment-Grade [Member] | Internally rated loans [Member] | Credit Card Receivable [Member] |
|
|
| Financing Receivable, Recorded Investment [Line Items] |
|
|
| Loans and Leases Receivable, Gross |
0
|
0
|
| Loans Receivable [Member] | Non-Investment-Grade [Member] | Internally rated loans [Member] | Other [Member] |
|
|
| Financing Receivable, Recorded Investment [Line Items] |
|
|
| Loans and Leases Receivable, Gross |
$ 3,139
|
$ 960
|
| Loans Receivable [Member] | Non-Investment-Grade [Member] | Secured Loans [Member] | Internally rated loans [Member] |
|
|
| Financing Receivable, Recorded Investment [Line Items] |
|
|
| Concentration Risk,Percentage |
92.00%
|
90.00%
|
| Loans Receivable [Member] | Non-Investment-Grade [Member] | Unsecured Loans [Member] | Internally rated loans [Member] |
|
|
| Financing Receivable, Recorded Investment [Line Items] |
|
|
| Concentration Risk,Percentage |
8.00%
|
10.00%
|
| Loans Receivable [Member] | Non-Investment-Grade [Member] | Amortized cost [Member] | Internally rated loans [Member] |
|
|
| Financing Receivable, Recorded Investment [Line Items] |
|
|
| Loans and Leases Receivable, Gross |
$ 75,179
|
$ 58,250
|
| Loans Receivable [Member] | Non-Investment-Grade [Member] | Fair Value [Member] | Internally rated loans [Member] |
|
|
| Financing Receivable, Recorded Investment [Line Items] |
|
|
| Loans receivable at fair value |
4,634
|
5,925
|
| Loans Receivable [Member] | Non-Investment-Grade [Member] | Held for sale [Member] | Internally rated loans [Member] |
|
|
| Financing Receivable, Recorded Investment [Line Items] |
|
|
| Loans Receivable Held-for-sale, Amount |
4,747
|
2,152
|
| Loans Receivable [Member] | Other Metrics/Unrated [Member] | Internally rated loans [Member] |
|
|
| Financing Receivable, Recorded Investment [Line Items] |
|
|
| Loans and Leases Receivable, Gross |
$ 22,701
|
$ 17,822
|
| Concentration Risk,Percentage |
100.00%
|
100.00%
|
| Loans Receivable [Member] | Other Metrics/Unrated [Member] | Internally rated loans [Member] | Corporate [Member] |
|
|
| Financing Receivable, Recorded Investment [Line Items] |
|
|
| Loans and Leases Receivable, Gross |
$ 168
|
$ 477
|
| Loans Receivable [Member] | Other Metrics/Unrated [Member] | Internally rated loans [Member] | Wealth management [Member] |
|
|
| Financing Receivable, Recorded Investment [Line Items] |
|
|
| Loans and Leases Receivable, Gross |
6,792
|
5,594
|
| Loans Receivable [Member] | Other Metrics/Unrated [Member] | Internally rated loans [Member] | Commercial real estate [Member] |
|
|
| Financing Receivable, Recorded Investment [Line Items] |
|
|
| Loans and Leases Receivable, Gross |
374
|
1,018
|
| Loans Receivable [Member] | Other Metrics/Unrated [Member] | Internally rated loans [Member] | Residential real estate [Member] |
|
|
| Financing Receivable, Recorded Investment [Line Items] |
|
|
| Loans and Leases Receivable, Gross |
1,022
|
1,262
|
| Loans Receivable [Member] | Other Metrics/Unrated [Member] | Internally rated loans [Member] | Installment [Member] |
|
|
| Financing Receivable, Recorded Investment [Line Items] |
|
|
| Loans and Leases Receivable, Gross |
3,672
|
3,823
|
| Loans Receivable [Member] | Other Metrics/Unrated [Member] | Internally rated loans [Member] | Credit Card Receivable [Member] |
|
|
| Financing Receivable, Recorded Investment [Line Items] |
|
|
| Loans and Leases Receivable, Gross |
8,212
|
4,270
|
| Loans Receivable [Member] | Other Metrics/Unrated [Member] | Internally rated loans [Member] | Other [Member] |
|
|
| Financing Receivable, Recorded Investment [Line Items] |
|
|
| Loans and Leases Receivable, Gross |
$ 2,461
|
$ 1,378
|
| Loans Receivable [Member] | Other Metrics/Unrated [Member] | Secured Loans [Member] | Internally rated loans [Member] |
|
|
| Financing Receivable, Recorded Investment [Line Items] |
|
|
| Concentration Risk,Percentage |
36.00%
|
46.00%
|
| Loans Receivable [Member] | Other Metrics/Unrated [Member] | Unsecured Loans [Member] | Internally rated loans [Member] |
|
|
| Financing Receivable, Recorded Investment [Line Items] |
|
|
| Concentration Risk,Percentage |
64.00%
|
54.00%
|
| Loans Receivable [Member] | Other Metrics/Unrated [Member] | Amortized cost [Member] | Internally rated loans [Member] |
|
|
| Financing Receivable, Recorded Investment [Line Items] |
|
|
| Loans and Leases Receivable, Gross |
$ 17,405
|
$ 11,783
|
| Loans Receivable [Member] | Other Metrics/Unrated [Member] | Fair Value [Member] | Internally rated loans [Member] |
|
|
| Financing Receivable, Recorded Investment [Line Items] |
|
|
| Loans receivable at fair value |
3,834
|
5,616
|
| Loans Receivable [Member] | Other Metrics/Unrated [Member] | Held for sale [Member] | Internally rated loans [Member] |
|
|
| Financing Receivable, Recorded Investment [Line Items] |
|
|
| Loans Receivable Held-for-sale, Amount |
$ 1,462
|
$ 423
|