RETIREMENT BENEFITS PLANS - Benefits Expense (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Pension plans
Defined Benefit Plans and Other Postretirement Benefit Plans
Total expense (income)		$ 66
Pension plans | United States
Defined Benefit Plans and Other Postretirement Benefit Plans
Service cost	$ 27	37	$ 97
Interest cost	117	70	103
Expected return on plan assets	(204)	(223)	(231)
Amortization	15	36	102
Benefit plans	(46)	(80)	71
Settlements, curtailments and special termination benefits	61	65	62
Total expense (income)	15	(15)	133
Settlement and curtailment expense	(61)	(65)	(62)
Pension plans | Foreign Plan
Defined Benefit Plans and Other Postretirement Benefit Plans
Service cost	59	72	73
Interest cost	47	40	45
Expected return on plan assets	(115)	(120)	(109)
Amortization	45	71	60
Benefit plans	37	63	69
Settlements, curtailments and special termination benefits	2	17	10
Total expense (income)	39	80	79
Settlement and curtailment expense	(2)	(17)	(10)
Other postretirement benefits plans
Defined Benefit Plans and Other Postretirement Benefit Plans
Service cost	1	1	2
Interest cost	7	6	9
Expected return on plan assets	(1)	0	0
Amortization	(7)	(5)	(13)
Benefit plans	0	2	(2)
Settlements, curtailments and special termination benefits	0	(1)	0
Total expense (income)	0	1	(2)
Settlement and curtailment expense	$ 0	1	$ 0
Hydraulics Business | Pension plans
Defined Benefit Plans and Other Postretirement Benefit Plans
Settlements, curtailments and special termination benefits		(13)
Settlement and curtailment expense		$ 13