CONTRACT AND OTHER DEFERRED ASSETS, CONTRACT LIABILITIES AND DEFERRED INCOME & PROGRESS COLLECTIONS - Narrative (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023
Capitalized Contract Cost [Line Items]
Contract assets (liabilities) and other deferred assets (income), increase net liability position	$ 915
Increase (decrease) in long-term service agreement liabilities	1,092
Increase (decrease) in equipment and other service agreements	111
Revenue recognized, contract liability	6,336	$ 5,717
Increase in progress collections and deferred income due to timing of revenue recognition	519
Long-term
Capitalized Contract Cost [Line Items]
Increase (decrease) due to billings	8,594
Net favorable (unfavorable) change in estimated profitability	(56)
Revenues recognized, contract asset	$ 7,668