BUSINESS SEGMENTS - Segment Profits (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Total segments profits	$ 3,462	$ 1,750	$ 84
Interest expense, net of interest income	(377)	(392)	(418)
(Provision) benefit for income taxes	(756)	(81)	199
NET INCOME (LOSS)	2,358	1,099	(267)
Non-US | Reimbursements
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Total segments profits	67	14	(62)
Total segment | Non-US
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Total segments profits	898	297	(198)
Total segment | U.S. & Canada
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Total segments profits	2,446	1,394	198
Total segment | U.S. & Canada | Reimbursements
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Total segments profits	134	51	(80)
Total segment | International
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Total segments profits	794	258	(222)
Total segment | International | Reimbursements
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Total segments profits	49	14	(55)
Unallocated corporate and other
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Total segments profits	$ 251	$ (80)	$ (24)