RECLASSIFICATIONS FROM ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS) (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance	$ 5,888	$ 4,324
Other comprehensive income before reclassifications	0
Amounts reclassified from other comprehensive income	2
Net current-period other comprehensive income	2	(15)
Ending balance	4,366	6,254
Net actuarial gain (loss) incurred in period	2	(2)
Total
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance	(3)	6
Net current-period other comprehensive income	2	(15)
Ending balance	(1)	$ (9)
Other Postretirement
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance	11
Other comprehensive income before reclassifications	0
Amounts reclassified from other comprehensive income	2
Net current-period other comprehensive income	2
Ending balance	13
Foreign Currency
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance	(14)
Other comprehensive income before reclassifications	0
Amounts reclassified from other comprehensive income	0
Net current-period other comprehensive income	0
Ending balance	$ (14)