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DEBT AND EQUITY SECURITIES - Schedule of Net Gains and Interest Income from Marketable Securities Held to Fund Operating Programs (Details) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Unrealized gains (losses), net      
Net gains (losses) and interest income from marketable securities held to fund rabbi trusts $ 6 $ 42 $ (89)
Revenues for reimbursed costs 2 21 (42)
Other income (loss), net (Note 21) 4 10 (37)
Other comprehensive income (loss) (Note 16) (5) 10 (14)
Realized gains (losses), net      
Net gains (losses) and interest income from marketable securities held to fund rabbi trusts 43 13 14
Revenues for reimbursed costs 21 6 7
Other income (loss), net $ 1 $ (2) $ 0