ACCUMULATED OTHER COMPREHENSIVE LOSS - Changes in Amounts Included in Our Accumulated Other Comprehensive Loss (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Accumulated Other Comprehensive Income Loss [Line Items]
Balance at beginning of period			$ 10,749
Translation adjustments	$ 7	$ (25)	7	$ (9)
Total other comprehensive income	15	52	22	81
Balance at end of period	10,141	10,816	10,141	10,816
Pension
Accumulated Other Comprehensive Income Loss [Line Items]
Balance at beginning of period	(451)	(709)	(458)	(720)
Other comprehensive income (loss) before reclassifications	(2)	59	(1)	51
Amounts reclassified from accumulated other comprehensive loss to earnings	9	18	15	37
Total other comprehensive income	7	77	14	88
Balance at end of period	(444)	(632)	(444)	(632)
Other Post-Employment Benefits
Accumulated Other Comprehensive Income Loss [Line Items]
Balance at beginning of period	20	0	20	(2)
Other comprehensive income (loss) before reclassifications	1	(1)	1	0
Amounts reclassified from accumulated other comprehensive loss to earnings	0	1	0	2
Total other comprehensive income	1	0	1	2
Balance at end of period	21	0	21	0
Translation Adjustments and Other
Accumulated Other Comprehensive Income Loss [Line Items]
Balance at beginning of period	191	259	191	243
Translation adjustments	7	(25)	7	(9)
Total other comprehensive income	7	(25)	7	(9)
Balance at end of period	198	234	198	234
Accumulated Other Comprehensive Loss
Accumulated Other Comprehensive Income Loss [Line Items]
Balance at beginning of period	(240)	(450)	(247)	(479)
Total other comprehensive income	15	52	22	81
Balance at end of period	$ (225)	$ (398)	$ (225)	$ (398)