SEGMENT INFORMATION - Summary of Reportable Segments (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Segment, Reconciliation of Other Items from Segments to Consolidated [Line Items]
Total revenues	$ 9,094	$ 8,755	$ 18,048	$ 16,591
Interest and other financial charges	(248)	(249)	(511)	(497)
Non-operating benefit income (cost)	204	249	421	488
Benefit (provision) for income taxes	(125)	(253)	(369)	(467)
Earnings (loss) from continuing operations attributable to common shareholders	1,320	1,195	3,061	7,755
Earnings (loss) from discontinued operations attributable to common shareholders	(54)	(1,221)	(256)	(417)
Net earnings (loss) attributable to common shareholders	1,266	(25)	2,805	7,338
Operating segments
Segment, Reconciliation of Other Items from Segments to Consolidated [Line Items]
Total revenues	8,533	8,113	16,941	15,310
Gross profit (loss)	2,023	1,590	3,698	3,006
Operating segments | Commercial Engines & Services
Segment, Reconciliation of Other Items from Segments to Consolidated [Line Items]
Total revenues	6,132	5,737	12,228	10,969
Gross profit (loss)	1,679	1,389	3,098	2,603
Operating segments | Defense & Propulsion Technologies
Segment, Reconciliation of Other Items from Segments to Consolidated [Line Items]
Total revenues	2,401	2,375	4,713	4,341
Gross profit (loss)	344	201	600	402
Corporate & Other
Segment, Reconciliation of Other Items from Segments to Consolidated [Line Items]
Total revenues	561	642	1,108	1,281
Gross profit (loss)	(534)	(84)	(179)	5,429
Segment reconciling items
Segment, Reconciliation of Other Items from Segments to Consolidated [Line Items]
Interest and other financial charges	(248)	(249)	(511)	(497)
Non-operating benefit income (cost)	204	249	421	488
Benefit (provision) for income taxes	(125)	(253)	(369)	(467)
Preferred stock dividends	$ 0	$ (58)	$ 0	$ (204)