v3.26.1
OTHER COMPREHENSIVE INCOME (LOSS) - Schedule of Components of Accumulated Other Comprehensive Income (Loss), Net of Tax (Details) - USD ($)
$ in Millions
 3 Months Ended
Mar. 31, 2026
Mar. 31, 2025
AOCI Attributable to Parent, Net of Tax [Roll Forward]    
Balance beginning of period $ 15,461  
Current period change (410) $ 352
Balance ending of period 15,291 14,140
Accumulated Other Comprehensive Income (Loss)    
AOCI Attributable to Parent, Net of Tax [Roll Forward]    
Balance beginning of period (52) (1,138)
Current period change (410) 352
Balance ending of period (462) (786)
URA(D) of securities    
AOCI Attributable to Parent, Net of Tax [Roll Forward]    
Balance beginning of period 23 (831)
Current period change (374) 289
Balance ending of period (351) (543)
Foreign currency translation and other adjustments    
AOCI Attributable to Parent, Net of Tax [Roll Forward]    
Balance beginning of period (81) (323)
Current period change (35) 64
Balance ending of period (116) (259)
Benefit plan net gain (loss)    
AOCI Attributable to Parent, Net of Tax [Roll Forward]    
Balance beginning of period 6 16
Current period change 0 0
Balance ending of period $ 6 $ 16