SEGMENTS - Results of segments (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2023	Dec. 31, 2022
Segment Information
Revenues	$ 3,936	$ 4,303	$ 12,202	$ 12,771
Segment adjusted EBITDA	640	597	1,872	1,556
United States
Segment Information
Revenues	1,032	1,265	3,305	3,581
Segment adjusted EBITDA	194	271	607	639
Japan
Segment Information
Revenues	581	606	1,761	1,855
Segment adjusted EBITDA	94	90	278	318
Principal Markets
Segment Information
Revenues	1,446	1,472	4,395	4,460
Segment adjusted EBITDA	207	91	560	248
Strategic Markets
Segment Information
Revenues	877	961	2,741	2,874
Segment adjusted EBITDA	$ 144	$ 145	$ 428	$ 352