v3.24.2.u1
Fair Value of Financial Instruments (Changes In Level 3 Assets And Liabilities Measured At Fair Value On A Recurring Basis) (Detail) - Fair Value Inputs Level 3 [Member] - USD ($)
$ in Millions
 3 Months Ended 6 Months Ended
Jun. 30, 2024
Jun. 30, 2023
Jun. 30, 2024
Jun. 30, 2023
Accounts Notes And Loans Receivable [Line Items]        
Beginning balance, fair value assets $ 147 $ 208 $ 146 $ 216
Total gains/(losses) included in earnings, assets (64) (9) (68) 0
Unrealized gains/(losses) included in OCI, assets 0 [1] 0 [1] 0 [2] 0 [3]
Purchases, assets 6 0 12 0
Issuances, assets 0 0 0 0
Settlements, assets (1) (2) (2) (5)
Sales, assets (2) (9) (2) (24)
Transfers into level 3, assets 0 0 0 1
Transfers out of level 3, assets 0 0 0 0
Ending balance, fair value assets 86 188 86 188
Change in unrealized gains/(losses) for the period included in earnings for assets still held, assets (64) (14) (67) (8)
Change in unrealized gains/(losses) for the period included in OCI for Assets still held, assets 0 [1] 0 [1] 0 [4] 0 [3]
Beginning balance, fair value liabilities 97 207 132 219
Total (gains)/losses included in earnings, liabilities 4 15 28 39
Unrealized (gains)/losses included in OCI, liabilities (3) [5] (13) [5] (25) [4] (29) [6]
Purchases, liabilities 0 0 0 0
Issuances, liabilities 0 62 0 62
Settlements, liabilities (2) (22) (39) (24)
Sales, liabilities (20) (16) (20) (34)
Transfers into Level 3, liabilities 0 0 0 0
Transfers out of Level 3, liabilities 0 0 0 0
Ending balance, fair value liabilities 76 233 76 233
Change in unrealized gains/(losses) for the period included in earnings for liabilities still held, liabilities (10) (7) (11) 3
Change in Unrealized Gains/ (Losses) for the Period Included in OCI for Liabilities still held 4 [5] 6 [5] 2 [4] 4 [6]
Loans receivable - residential [Member] | Variable Interest Entity Primary Beneficiary [Member]        
Accounts Notes And Loans Receivable [Line Items]        
Beginning balance, fair value assets 36 83 35 78
Total gains/(losses) included in earnings, assets (4) (11) (2) (3)
Unrealized gains/(losses) included in OCI, assets 0 [1] 0 [1] 0 [2] 0 [3]
Purchases, assets 0 0 0 0
Issuances, assets 0 0 0 0
Settlements, assets (1) (2) (2) (5)
Sales, assets 0 0 0 0
Transfers into level 3, assets 0 0 0 0
Transfers out of level 3, assets 0 0 0 0
Ending balance, fair value assets 31 70 31 70
Change in unrealized gains/(losses) for the period included in earnings for assets still held, assets (5) (12) (4) (7)
Change in unrealized gains/(losses) for the period included in OCI for Assets still held, assets 0 [1] 0 [1] 0 [4] 0 [3]
Corporate Obligations [Member]        
Accounts Notes And Loans Receivable [Line Items]        
Beginning balance, fair value assets 7 1 1 0
Total gains/(losses) included in earnings, assets (3) 0 (3) 0
Unrealized gains/(losses) included in OCI, assets 0 [1] 0 [1] 0 [2] 0 [3]
Purchases, assets 6 0 12 0
Issuances, assets 0 0 0 0
Settlements, assets 0 0 0 0
Sales, assets 0 0 0 0
Transfers into level 3, assets 0 0 0 1
Transfers out of level 3, assets 0 0 0 0
Ending balance, fair value assets 10 [7],[8] 1 10 [7],[8] 1
Change in unrealized gains/(losses) for the period included in earnings for assets still held, assets (2) 0 0 0
Change in unrealized gains/(losses) for the period included in OCI for Assets still held, assets 0 [1] 0 [1] 0 [4] 0 [3]
Equity investments [Member]        
Accounts Notes And Loans Receivable [Line Items]        
Beginning balance, fair value assets 102 115 108 115
Total gains/(losses) included in earnings, assets (57) 0 (63) 0
Unrealized gains/(losses) included in OCI, assets 0 [1] 0 [1] 0 [2] 0 [3]
Purchases, assets 0 0 0 0
Issuances, assets 0 0 0 0
Settlements, assets 0 0 0 0
Sales, assets 0 0 0 0
Transfers into level 3, assets 0 0 0 0
Transfers out of level 3, assets 0 0 0 0
Ending balance, fair value assets 45 115 45 115
Change in unrealized gains/(losses) for the period included in earnings for assets still held, assets (57) 0 (63) 0
Change in unrealized gains/(losses) for the period included in OCI for Assets still held, assets 0 [1] 0 [1] 0 [4] 0 [3]
Medium Term Notes [Member]        
Accounts Notes And Loans Receivable [Line Items]        
Beginning balance, fair value liabilities 36 42 40 41
Total (gains)/losses included in earnings, liabilities (4) (3) (6) 0
Unrealized (gains)/losses included in OCI, liabilities 4 [5] (1) [5] 2 [4] (3) [6]
Purchases, liabilities 0 0 0 0
Issuances, liabilities 0 0 0 0
Settlements, liabilities 0 0 0
Sales, liabilities 0 0 0 0
Transfers into Level 3, liabilities 0 0 0 0
Transfers out of Level 3, liabilities 0 0 0 0
Ending balance, fair value liabilities 36 38 36 38
Change in unrealized gains/(losses) for the period included in earnings for liabilities still held, liabilities (4) (3) (6) 0
Change in Unrealized Gains/ (Losses) for the Period Included in OCI for Liabilities still held 4 [5] (1) [5] 2 [4] (3) [6]
Variable Interest Entity Notes [Member] | Variable Interest Entity Primary Beneficiary [Member]        
Accounts Notes And Loans Receivable [Line Items]        
Beginning balance, fair value liabilities 46 154 78 172
Total (gains)/losses included in earnings, liabilities 14 17 39 33
Unrealized (gains)/losses included in OCI, liabilities (7) [5] (12) [5] (27) [4] (26) [6]
Purchases, liabilities 0 0 0 0
Issuances, liabilities 0 62 0 62
Settlements, liabilities (2) (22) (39) (24)
Sales, liabilities (20) (16) (20) (34)
Transfers into Level 3, liabilities 0 0 0 0
Transfers out of Level 3, liabilities 0 0 0 0
Ending balance, fair value liabilities 31 183 31 183
Change in unrealized gains/(losses) for the period included in earnings for liabilities still held, liabilities 0 (5) 0 (3)
Change in Unrealized Gains/ (Losses) for the Period Included in OCI for Liabilities still held 0 [5] 7 [5] 0 [4] 7 [6]
Currency Derivatives [Member] | Variable Interest Entity Primary Beneficiary [Member]        
Accounts Notes And Loans Receivable [Line Items]        
Beginning balance, fair value liabilities 15 11 14 6
Total (gains)/losses included in earnings, liabilities (6) 1 (5) 6
Unrealized (gains)/losses included in OCI, liabilities 0 [5] 0 [5] 0 [4] 0 [6]
Purchases, liabilities 0 0 0 0
Issuances, liabilities 0 0 0 0
Settlements, liabilities 0 0 0 0
Sales, liabilities 0 0 0 0
Transfers into Level 3, liabilities 0 0 0 0
Transfers out of Level 3, liabilities 0 0 0 0
Ending balance, fair value liabilities 9 12 9 12
Change in unrealized gains/(losses) for the period included in earnings for liabilities still held, liabilities (6) 1 (5) 6
Change in Unrealized Gains/ (Losses) for the Period Included in OCI for Liabilities still held 0 [5] 0 [5] 0 [4] 0 [6]
Other Assets [Member] | Variable Interest Entity Primary Beneficiary [Member]        
Accounts Notes And Loans Receivable [Line Items]        
Beginning balance, fair value assets 2 9 2 23
Total gains/(losses) included in earnings, assets 0 2 0 3
Unrealized gains/(losses) included in OCI, assets 0 [1] 0 [1] 0 [2] 0 [3]
Purchases, assets 0 0 0 0
Issuances, assets 0 0 0 0
Settlements, assets 0 0 0 0
Sales, assets (2) (9) (2) (24)
Transfers into level 3, assets 0 0 0 0
Transfers out of level 3, assets 0 0 0 0
Ending balance, fair value assets 0 2 0 2
Change in unrealized gains/(losses) for the period included in earnings for assets still held, assets 0 (2) 0 (1)
Change in unrealized gains/(losses) for the period included in OCI for Assets still held, assets $ 0 [1] $ 0 [1] $ 0 [4] $ 0 [3]
[1] Reported within the "Unrealized gains (losses) on available-for-sale securities" on the Company's consolidated statements of comprehensive income (loss).
[2] Reported within the "Unrealized gains (losses) on available-for-sale securities" on the Company's consolidated statements of comprehensive income (loss).
[3] Reported within the "Unrealized gains (losses) on available-for-sale securities" on the Company's consolidated statements of comprehensive income (loss).
[4] Reported within the "Instrument-specific credit risk of liabilities measured at fair value" on the Company's consolidated statements of comprehensive income (loss).
[5] Reported within the "Instrument-specific credit risk of liabilities measured at fair value" on the Company's consolidated statements of comprehensive income (loss).
[6] Reported within the "Instrument-specific credit risk of liabilities measured at fair value" on the Company's consolidated statements of comprehensive income (loss).
[7] Includes loans carried at fair value of $9 million.
[8] Includes loans carried at fair value of $9 million.