RETIREMENT BENEFITS - Contributions (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
U.S. | Pension Plans
Defined Benefit Plan, Expected Future Employer Contributions [Abstract]
Estimated future contributions made by the Company	$ 0
Cash contributions made by the Company		$ 0	$ 0
Estimated benefits paid directly by (reimbursements to) the Company	57
Benefits paid directly by (reimbursements to) the Company	58	55
U.S. | Postretirement Benefit Plans
Defined Benefit Plan, Expected Future Employer Contributions [Abstract]
Estimated future contributions made by the Company	0
Cash contributions made by the Company		0	0
Estimated benefits paid directly by (reimbursements to) the Company	6
Benefits paid directly by (reimbursements to) the Company	8	14
Non-U.S. | Pension Plans
Defined Benefit Plan, Expected Future Employer Contributions [Abstract]
Estimated future contributions made by the Company	61
Cash contributions made by the Company		87	158
Estimated benefits paid directly by (reimbursements to) the Company	46
Benefits paid directly by (reimbursements to) the Company	31	336
Non-U.S. | Postretirement Benefit Plans
Defined Benefit Plan, Expected Future Employer Contributions [Abstract]
Estimated future contributions made by the Company	4
Cash contributions made by the Company		4	$ 4
Estimated benefits paid directly by (reimbursements to) the Company	6
Benefits paid directly by (reimbursements to) the Company	$ 5	$ 5