SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Schedule of Accumulated Other Comprehensive Income (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Balance at beginning of period	$ 17,430	$ 15,690	$ 13,245
Balance at end of period	39,862	17,430	15,690
Accumulated Defined Benefit Plans Adjustment Attributable to Parent
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Balance at beginning of period	(8)	(7)	0
Net actuarial gain (loss) on pension and postretirement benefit plans	2	(1)	(9)
Income tax benefit (expense)	0	0	2
Balance at end of period	$ (6)	$ (8)	$ (7)