RETIREMENT BENEFITS - Contributions (Details) - USD ($) $ in Millions	9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023
U.S. plans | Pension plans
Defined Benefit Plan, Expected Future Employer Contributions [Abstract]
Company contributions (reimbursements)	$ 43	$ 43
Company net contributions made during the remainder of the year		15
Company contributions expected to be made during the remainder of the year	16
U.S. plans | Postretirement benefit plans
Defined Benefit Plan, Expected Future Employer Contributions [Abstract]
Company contributions (reimbursements)	8	0
Company net contributions made during the remainder of the year		8
Company contributions expected to be made during the remainder of the year	2
Non-U.S. plans | Pension plans
Defined Benefit Plan, Expected Future Employer Contributions [Abstract]
Company contributions (reimbursements)	80	87
Company net contributions made during the remainder of the year		31
Company contributions expected to be made during the remainder of the year	21
Non-U.S. plans | Postretirement benefit plans
Defined Benefit Plan, Expected Future Employer Contributions [Abstract]
Company contributions (reimbursements)	7	7
Company net contributions made during the remainder of the year		$ 2
Company contributions expected to be made during the remainder of the year	$ 3