RETIREMENT BENEFIT PLANS - Retirement Benefits Expense (Income) (Details) - Pension plans - USD ($) $ in Millions	3 Months Ended
Mar. 31, 2024	Mar. 31, 2023
UNITED STATES
Retirement benefits plans expense (income)
Service cost	$ 5	$ 5
Interest cost	33	36
Expected return on plan assets	(47)	(49)
Amortization	2	1
Total	(7)	(7)
Settlements	9	9
Total expense	1	2
Non-United States plans
Retirement benefits plans expense (income)
Service cost	12	11
Interest cost	21	21
Expected return on plan assets	(33)	(30)
Amortization	3	1
Total	3	3
Settlements	1	1
Total expense	$ 4	$ 4

Total Benefit Plans.

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