INCOME TAXES - components of income tax expense (benefit) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Income Tax Disclosure [Abstract]
U.S.	$ 437	$ 310	$ 220
Non-U.S.	527	955	976
Earnings before income taxes and noncontrolling interest	964	1,265	1,196
Federal	19	32	17
State	2	4	5
Foreign	252	245	259
Total provision for income taxes	273	281	281
Federal	70	150	(40)
State	11	23	(8)
Foreign	43	14	(22)
Total deferred	124	187	(70)
Provision for income taxes	$ 397	$ 468	$ 211