ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS) - Components of AOCI (Details) - USD ($) $ in Millions	3 Months Ended						9 Months Ended
	Sep. 30, 2023	Jun. 30, 2023	Mar. 31, 2023	Sep. 30, 2022	Jun. 30, 2022	Mar. 31, 2022	Sep. 30, 2023	Sep. 30, 2022
Accumulated Other Comprehensive Income [Roll Forward]
Beginning balance	$ 7,575	$ 7,399	$ 6,927	$ 5,794	$ 5,609		$ 6,927
Other comprehensive income (loss), net of tax	(58)	72	(37)	59	43	$ 130	(23)	$ 232
Ending balance	8,057	7,575	7,399	6,357	5,794	5,609	8,057	6,357
Non-controlling interest							(1)	1
Total
Accumulated Other Comprehensive Income [Roll Forward]
Beginning balance	(2,246)	(2,316)	(2,278)	(2,323)	(2,367)	(2,497)	(2,278)	(2,497)
Other comprehensive income (loss), before reclassifications							(15)	242
Amounts reclassified from other comprehensive income							(7)	(9)
Other comprehensive income (loss), net of tax	(54)	70	(38)	59	44	130	(22)	233
Ending balance	(2,300)	$ (2,246)	(2,316)	(2,264)	$ (2,323)	(2,367)	(2,300)	(2,264)
Unrealized Gain (Loss) on Cash Flow Hedges
Accumulated Other Comprehensive Income [Roll Forward]
Beginning balance			46			2	46	2
Other comprehensive income (loss), before reclassifications							(62)	(180)
Amounts reclassified from other comprehensive income							3	91
Other comprehensive income (loss), net of tax							(59)	(89)
Ending balance	(13)			(87)			(13)	(87)
Change in Retirement Plans’ Funded Status
Accumulated Other Comprehensive Income [Roll Forward]
Beginning balance			(285)			(324)	(285)	(324)
Other comprehensive income (loss), before reclassifications							(1)	36
Amounts reclassified from other comprehensive income							(10)	(100)
Other comprehensive income (loss), net of tax							(11)	(64)
Ending balance	(296)			(388)			(296)	(388)
Foreign Currency Translation
Accumulated Other Comprehensive Income [Roll Forward]
Beginning balance			(1,800)			(1,951)	(1,800)	(1,951)
Other comprehensive income (loss), before reclassifications							71	428
Amounts reclassified from other comprehensive income							0	0
Other comprehensive income (loss), net of tax							71	428
Ending balance	(1,729)			(1,523)			(1,729)	(1,523)
Share of Other Comprehensive Income (Loss) of Entities Using the Equity Method
Accumulated Other Comprehensive Income [Roll Forward]
Beginning balance			$ (239)			$ (224)	(239)	(224)
Other comprehensive income (loss), before reclassifications							(23)	(42)
Amounts reclassified from other comprehensive income							0	0
Other comprehensive income (loss), net of tax							(23)	(42)
Ending balance	$ (262)			$ (266)			$ (262)	$ (266)