REVENUE RECOGNITION AND CONTRACTS WITH CUSTOMERS - Contract Assets and Liabilities (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021	Dec. 31, 2021
Contract With Customer, Asset And Liability [Roll Forward]
Contract assets - beginning balance			$ 2,060	$ 1,618
Contract assets - ending balance	$ 2,243	$ 1,868	2,243	1,868
Change in contract assets - increase (decrease)			183	250
Contract liabilities - beginning balance			(4,290)	(4,033)
Contract liabilities - ending balance	(4,329)	(3,740)	(4,329)	(3,740)
Change in contract liabilities - decrease (increase)			(39)	293
Net change			144	543
Contract liability, revenue recognized	344	$ 441	1,271	$ 1,516
Unbilled balances	$ 2,213		$ 2,213		$ 2,035