v3.26.1
INVESTMENT SECURITIES - Narrative (Details) - USD ($)
$ in Millions
3 Months Ended 6 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2026
Jun. 30, 2025
Dec. 31, 2025
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]          
Accrued interest, current $ 479   $ 479   $ 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 $ 20,078   $ 20,078   $ 18,484
Debt securities in unrealized loss position, 12 months or more 13,600   13,600   14,656
Gross unrealized losses, 12 months or more (2,604)   (2,604)   (2,525)
Investments without readily determinable fair value 2,056   2,056   1,911
Fair value adjustments, including impairment 31 $ 62 71 $ 100  
Insurance          
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]          
Investments without readily determinable fair value 2,041   2,041   1,881
Level 3          
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]          
Investments with a fair value $ 3,353   3,353   $ 3,222
Level 3 | Investment securities          
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]          
Transfers out of level 3     138 1,144  
Transfers
into
Level 3     $ 0 $ 0