CONSOLIDATED STATEMENTS OF COMPREHENSIVE (LOSS) INCOME (UNAUDITED) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2025	Jun. 30, 2024	Jun. 30, 2025	Jun. 30, 2024
Statement of Comprehensive Income [Abstract]
NET (LOSS) INCOME	$ (915)	$ (49)	$ (1,116)	$ 8
Items related to employee benefit plans:
Change in net actuarial loss, net of $(8), $(5), $(15) and $(11) tax	22	16	44	34
Change in net prior service cost, net of $1, $1, $1 and $2 tax	(1)	(2)	(3)	(5)
Foreign currency translation adjustment, net of $—, $—, $— and $— tax	0	(1)	3	(5)
Other comprehensive income	21	13	44	24
COMPREHENSIVE (LOSS) INCOME	$ (894)	$ (36)	$ (1,072)	$ 32