REPOSITIONING AND OTHER CHARGES - Narrative (Details) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2022 USD ($) employee	Jun. 30, 2021 USD ($) employee	Jun. 30, 2022 USD ($) employee	Jun. 30, 2021 USD ($) employee
Restructuring Cost and Reserve [Line Items]
Charges	$ 91	$ 92	$ 238	$ 211
Restructuring costs (returned to income)	$ 54	$ 70	$ 186	$ 190
Number of employees severed | employee	468	3,628	1,664	4,649
Reserves against outstanding accounts receivables, contract assets and impairments of other assets	$ 227	$ 101	$ 614	$ 242
Other charges	(190)	(366)	(509)	(808)
Tax valuation allowance adjustment	2		2
Selling, general and administrative expenses
Restructuring Cost and Reserve [Line Items]
Reserves against outstanding accounts receivables, contract assets and impairments of other assets	25	14	213	57
Cost of products and services sold
Restructuring Cost and Reserve [Line Items]
Reserves against outstanding accounts receivables, contract assets and impairments of other assets	145	87	344	185
Russia and Ukraine Conflict
Restructuring Cost and Reserve [Line Items]
Other charges	(124)		(307)
Russia and Ukraine Conflict | Cost of products and services sold
Restructuring Cost and Reserve [Line Items]
Other charges	60		60
Russia and Ukraine Conflict | Other
Restructuring Cost and Reserve [Line Items]
Other charges	57		57
Severance
Restructuring Cost and Reserve [Line Items]
Charges			32
Restructuring costs (returned to income)	25	32	32	60
Severance | Russia and Ukraine Conflict | Selling, general and administrative expenses
Restructuring Cost and Reserve [Line Items]
Other charges	7
Asset impairments
Restructuring Cost and Reserve [Line Items]
Charges			148
Restructuring costs (returned to income)	25	45	148	87
Exit costs
Restructuring Cost and Reserve [Line Items]
Charges			58
Restructuring costs (returned to income)	41	15	58	64
Restructuring costs incurred to date	31	20	31	20
Reserve adjustments
Restructuring Cost and Reserve [Line Items]
Restructuring costs (returned to income)	$ (37)	$ (22)	(52)	$ (21)
Contract adjustments, impairment of other assets and employee severance | Russia and Ukraine Conflict | Selling, general and administrative expenses
Restructuring Cost and Reserve [Line Items]
Other charges			$ 190