v3.26.1
LONG-TERM DEBT AND SHAREHOLDERS' EQUITY (Changes In Accumulated Other Comprehensive Income (Loss)) (Details) - USD ($)
$ in Millions
 3 Months Ended 6 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2026
Jun. 30, 2025
AOCI Attributable to Parent, Net of Tax [Roll Forward]        
Balance at beginning of period $ 7,296 $ 6,327 $ 7,180 $ 6,124
Other comprehensive income (loss) before reclassifications, net of tax     (26) 98
Amounts reclassified from AOCI, net of tax     100 118
Other comprehensive income, net of tax 68 86 74 216
Balance at end of period 7,681 6,596 7,681 6,596
Income tax expense (benefit) included in other comprehensive income     22 70
Total        
AOCI Attributable to Parent, Net of Tax [Roll Forward]        
Balance at beginning of period (1,935) (2,250) (1,941) (2,380)
Balance at end of period (1,867) (2,164) (1,867) (2,164)
Net unrealized gains (losses) on investment securities        
AOCI Attributable to Parent, Net of Tax [Roll Forward]        
Balance at beginning of period     (1,917) (2,301)
Other comprehensive income (loss) before reclassifications, net of tax     20 92
Amounts reclassified from AOCI, net of tax     83 90
Other comprehensive income, net of tax     103 182
Balance at end of period (1,814) (2,119) (1,814) (2,119)
Income tax expense (benefit) included in other comprehensive income     31 59
Net unrealized gains (losses) on derivatives and other        
AOCI Attributable to Parent, Net of Tax [Roll Forward]        
Balance at beginning of period     (23) (78)
Other comprehensive income (loss) before reclassifications, net of tax     (46) 6
Amounts reclassified from AOCI, net of tax     17 28
Other comprehensive income, net of tax     (29) 34
Balance at end of period (52) (44) (52) (44)
Income tax expense (benefit) included in other comprehensive income     (9) 11
Pension and post-retirement        
AOCI Attributable to Parent, Net of Tax [Roll Forward]        
Balance at beginning of period     (1) (1)
Other comprehensive income (loss) before reclassifications, net of tax     0 0
Amounts reclassified from AOCI, net of tax     0 0
Other comprehensive income, net of tax     0 0
Balance at end of period $ (1) $ (1) (1) (1)
Income tax expense (benefit) included in other comprehensive income     $ 0 $ 0