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DEBT AND EQUITY SECURITIES - Schedule of Marketable Securities Held to Fund Operating Programs (Details) - USD ($)
$ in Millions
Jun. 30, 2025
Dec. 31, 2024
Held for Operating Programs    
Schedule of Investments    
Total marketable securities held to fund operating programs $ 1,402 $ 1,276
Less: current portion of marketable securities held to fund operating programs included in cash and cash equivalents and short-term investments (97) (55)
Marketable securities held to fund operating programs included in other assets 1,305 1,221
Loyalty program    
Schedule of Investments    
Total marketable securities held to fund operating programs 702 642
Deferred compensation plans held in rabbi trusts    
Schedule of Investments    
Total marketable securities held to fund operating programs 564 548
Captive insurance company    
Schedule of Investments    
Total marketable securities held to fund operating programs $ 136 $ 86