ACCUMULATED OTHER COMPREHENSIVE LOSS - Changes in Amounts Included in Our Accumulated Other Comprehensive Loss (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2025	Sep. 30, 2024	Sep. 30, 2025	Sep. 30, 2024
Accumulated Other Comprehensive Income Loss [Line Items]
Balance at beginning of period			$ 9,721
Translation adjustments	$ (8)	$ 6	13	$ (8)
Total other comprehensive (loss) income	1	13	47	14
Balance at end of period	9,438	9,927	9,438	9,927
Pension
Accumulated Other Comprehensive Income Loss [Line Items]
Balance at beginning of period	(564)	(498)	(583)	(515)
Other comprehensive loss before reclassifications	(0)	(1)	(3)	0
Amounts reclassified from accumulated other comprehensive loss to earnings	12	9	34	25
Total other comprehensive (loss) income	12	8	31	25
Balance at end of period	(552)	(490)	(552)	(490)
Other Post-Employment Benefits
Accumulated Other Comprehensive Income Loss [Line Items]
Balance at beginning of period	23	22	23	24
Other comprehensive loss before reclassifications	(1)	0	0	(3)
Amounts reclassified from accumulated other comprehensive loss to earnings	0	(1)	(1)	0
Total other comprehensive (loss) income	(1)	(1)	(1)	(3)
Balance at end of period	22	21	22	21
Translation Adjustments and Other
Accumulated Other Comprehensive Income Loss [Line Items]
Balance at beginning of period	185	184	158	198
Translation adjustments	(8)	6	13	(8)
Unrealized (loss) gain on cash flow hedges	(2)	0	4	0
Total other comprehensive (loss) income	(10)	6	17	(8)
Balance at end of period	175	190	175	190
Accumulated Other Comprehensive Loss
Accumulated Other Comprehensive Income Loss [Line Items]
Balance at beginning of period	(356)	(292)	(402)	(293)
Total other comprehensive (loss) income	1	13	47	14
Balance at end of period	$ (355)	$ (279)	$ (355)	$ (279)