RETIREMENT BENEFITS - Defined Contribution Plans and Postemployment Plans (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Postemployment Retirement Benefits
Defined Benefit Plan Disclosure
Non-service-related expense	$ 0	$ 1	$ 5	$ 6
Total net expense	1	2	6	7
Actuarial gain	1	1	1	1
Total service-related expense	1	1	1	1
U.S. Plans | Postretirement Benefit Plans
Defined Benefit Plan Disclosure
Company's contributions for defined contribution plans	137	119	275	238
Total net expense	(5)	(4)	(8)	(7)
Non-U.S. plans | Postretirement Benefit Plans
Defined Benefit Plan Disclosure
Company's contributions for defined contribution plans	114	99	228	205
Total net expense	$ 0	$ 5	$ 0	$ 7