RETIREMENT BENEFITS PLANS - Obligations and Funded Status (Details) - USD ($) $ in Millions	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Funded status
Fair value of plan assets	$ 4,121	$ 5,919
Pension plans | United States
Funded status
Fair value of plan assets	2,635	3,672	$ 3,463
Benefit obligations	(2,807)	(3,760)	(4,121)
Funded status	(172)	(88)
Amounts recognized in the Consolidated Balance Sheets
Other assets	0	59
Other current liabilities	(19)	(16)
Pension liabilities and Other postretirement benefits liabilities	(153)	(131)
Total	(172)	(88)
Amounts recognized in Accumulated other comprehensive loss (pre-tax)
Net actuarial (gain) loss	807	708
Prior service cost (credit)	5	5
Total	811	713	1,051
Pension plans | Foreign Plan
Funded status
Fair value of plan assets	1,486	2,247	2,137
Benefit obligations	(1,813)	(2,837)	(3,036)
Funded status	(327)	(590)
Amounts recognized in the Consolidated Balance Sheets
Other assets	199	179
Other current liabilities	(30)	(28)
Pension liabilities and Other postretirement benefits liabilities	(496)	(741)
Total	(327)	(590)
Amounts recognized in Accumulated other comprehensive loss (pre-tax)
Net actuarial (gain) loss	491	745
Prior service cost (credit)	14	18
Total	505	763	1,026
Other postretirement benefits plans
Funded status
Fair value of plan assets	16	19	20
Benefit obligations	(209)	(304)	(375)
Funded status	(194)	(285)
Amounts recognized in the Consolidated Balance Sheets
Other assets	0	0
Other current liabilities	(17)	(22)
Pension liabilities and Other postretirement benefits liabilities	(177)	(263)
Total	(194)	(285)
Amounts recognized in Accumulated other comprehensive loss (pre-tax)
Net actuarial (gain) loss	(119)	(55)
Prior service cost (credit)	(2)	0
Total	$ (120)	$ (55)	$ (2)