SEGMENT INFORMATION - Operating Income to Income Before Income Taxes Reconciliation (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Total operating income	$ 513	$ 470	$ 1,327	$ 1,210
Interest expense, net	50	39	118	96
Other expense, net	12	16	15	32
Income before income taxes	451	415	1,194	1,082
Operating Segments
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Total operating income	1,009	898	2,824	2,522
Corporate and Other
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Total operating income	$ (496)	$ (428)	$ (1,497)	$ (1,312)