v3.26.3
INVESTMENT SECURITIES - Narrative (Details) - USD ($)
$ in Millions
3 Months Ended 9 Months Ended
Sep. 30, 2026
Sep. 30, 2025
Sep. 30, 2026
Sep. 30, 2025
Dec. 31, 2025
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]          
Accrued interest, current $ 508   $ 508   $ 473
Accrued interest, current, statement of financial position All other current assets (Note 9)   All other current assets (Note 9)   All other current assets (Note 9)
Debt securities in unrealized loss position, total $ 27,289   $ 27,289   $ 18,484
Debt securities in unrealized loss position, 12 months or more 12,568   12,568   14,656
Gross unrealized losses, 12 months or more (3,686)   (3,686)   (2,525)
Investments without readily determinable fair value 2,113   2,113   1,911
Fair value adjustments, including impairment 51 $ 57 122 $ 157  
Level 3          
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]          
Investments with a fair value $ 3,531   3,531   $ 3,222
Level 3 | Investment securities          
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]          
Transfers out of level 3     143 1,246  
Transfers
into
Level 3     $ 0 $ 0