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ACCUMULATED OTHER COMPREHENSIVE LOSS (Details) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
AOCI Attributable to Parent, Net of Tax      
Beginning balance, tax effect $ 796 $ 782 $ 1,184
Beginning balance 11,105 6,582 3,887
Changes in value, tax effect (199) 71 (330)
Changes in value (net of tax effect) 662 (233) 1,089
Reclassifications into earnings, tax effect (61) (57) (72)
Reclassification into earnings (net of tax effect) 204 189 240
Ending balance, tax effect 536 796 782
Ending balance 15,293 11,105 6,582
Deferred income tax expense in AOCI that will not be recognized until obligation is fully extinguished 750 750 750
Accumulated Other Comprehensive Loss      
AOCI Attributable to Parent, Net of Tax      
Beginning balance (5,845) (5,801) (7,130)
Ending balance (4,979) (5,845) (5,801)
Pension and Other Benefits Liabilities      
AOCI Attributable to Parent, Net of Tax      
Beginning balance, AOCI before tax (6,681) (6,624) (8,355)
Changes in value 859 (303) 1,419
Reclassifications into earnings 265 246 312
Ending balance, AOCI before tax (5,557) (6,681) (6,624)
Other      
AOCI Attributable to Parent, Net of Tax      
Beginning balance, AOCI before tax 40 41 41
Changes in value 2 (1) 0
Reclassifications into earnings 0 0 0
Ending balance, AOCI before tax $ 42 $ 40 $ 41