SEGMENTS - Results of segments (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Segment Information
Revenues	$ 4,431	$ 4,771
Segment adjusted EBITDA	592	450
United States
Segment Information
Revenues	1,169	1,228
Segment adjusted EBITDA	248	180
Japan
Segment Information
Revenues	706	763
Segment adjusted EBITDA	154	123
Principal Markets
Segment Information
Revenues	1,579	1,825
Segment adjusted EBITDA	98	52
Strategic Markets
Segment Information
Revenues	978	955
Segment adjusted EBITDA	$ 92	$ 96