GOODWILL - Summary (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
Goodwill [Roll Forward]
Balance at beginning of period	$ 861	$ 571
Acquisitions	79	290
Balance at end of period	940	861
FMS
Goodwill [Roll Forward]
Balance at beginning of period	245	244
Acquisitions	0	1
Balance at end of period	245	245
SCS
Goodwill [Roll Forward]
Balance at beginning of period	575	286
Acquisitions	79	289
Balance at end of period	654	575
DTS
Goodwill [Roll Forward]
Balance at beginning of period	41	41
Acquisitions	0	0
Balance at end of period	$ 41	$ 41