RESTRUCTURING CHARGES AND SEPARATION COSTS - Narrative (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Restructuring Cost and Reserve [Line Items]
Restructuring and other charges	$ 161	$ 48
Restructuring and other charges cash expenditures	137	127
Separation costs	205	99
Payments for restructuring costs	87	115
Non-cash asset impairment, accelerated depreciation and other charges
Restructuring Cost and Reserve [Line Items]
Restructuring and other charges	75	39
Employee workforce reduction and contract related charges
Restructuring Cost and Reserve [Line Items]
Restructuring and other charges	86	9
Separation costs
Restructuring Cost and Reserve [Line Items]
Separation costs	205	99
Payments for restructuring costs	204	3
Restructuring, incurred net tax expense (benefit)	56	24
Separation costs | Discontinued operations
Restructuring Cost and Reserve [Line Items]
Separation costs	20	20
Payments for restructuring costs	85
Restructuring, incurred net tax expense (benefit)	$ (4)	$ (4)