REVENUE RECOGNITION AND CONTRACTS WITH CUSTOMERS - Contract Assets and Liabilities (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023	Dec. 31, 2023
Contract With Customer, Asset And Liability [Roll Forward]
Contract assets - beginning balance			$ 2,013	$ 2,294
Contract assets - ending balance	$ 2,072	$ 2,438	2,072	2,438
Change in contract assets—increase (decrease)			59	144
Contract liabilities - beginning balance			(4,326)	(4,583)
Contract liabilities - ending balance	(4,096)	(4,179)	(4,096)	(4,179)
Change in contract liabilities—decrease (increase)			230	404
Net change			289	548
Contract liability, revenue recognized	494	$ 528	1,487	$ 1,481
Unbilled balances	$ 1,968		$ 1,968		$ 1,949