CONSOLIDATED STATEMENTS OF COMPREHENSIVE LOSS (UNAUDITED) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Statement of Comprehensive Income [Abstract]
NET LOSS	$ (148)	$ (78)	$ (140)	$ (8,303)
Items related to employee benefit plans:
Change in net actuarial loss, net of $(6), $(6), $(17) and $(16) tax	18	16	52	47
Change in net prior service cost, net of $1, $1, $3 and $3 tax	(3)	(3)	(8)	(8)
Foreign currency translation adjustment, net of $—, $5, $— and $(3) tax	5	(17)	0	3
Other comprehensive income (loss)	20	(4)	44	42
COMPREHENSIVE LOSS	$ (128)	$ (82)	$ (96)	$ (8,261)