ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS) (Details) - USD ($) $ in Millions	6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Beginning balance	$ 19,242
Other comprehensive income (loss) before reclassifications	64	$ 357
Amounts reclassified from accumulated other comprehensive income	(52)	(55)
Net current period other comprehensive income (loss)	12	302
Ending balance	18,190	18,202
Total
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Beginning balance	(2,895)	(3,377)
Ending balance	(2,883)	(3,075)
Foreign Exchange Translation Adjustment
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Beginning balance	(2,478)	(2,780)
Other comprehensive income (loss) before reclassifications	34	345
Amounts reclassified from accumulated other comprehensive income	(3)	(3)
Net current period other comprehensive income (loss)	31	342
Ending balance	(2,447)	(2,438)
Pension and Other Postretirement Benefits Adjustments
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Beginning balance	(415)	(601)
Other comprehensive income (loss) before reclassifications	0	0
Amounts reclassified from accumulated other comprehensive income	(34)	(43)
Net current period other comprehensive income (loss)	(34)	(43)
Ending balance	(449)	(644)
Changes in Fair Value of Available for Sale Investments
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Beginning balance	1	4
Other comprehensive income (loss) before reclassifications	(9)	(3)
Amounts reclassified from accumulated other comprehensive income	0	0
Net current period other comprehensive income (loss)	(9)	(3)
Ending balance	(8)	1
Changes in Fair Value of Cash Flow Hedges
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Beginning balance	(3)	0
Other comprehensive income (loss) before reclassifications	39	15
Amounts reclassified from accumulated other comprehensive income	(15)	(9)
Net current period other comprehensive income (loss)	24	6
Ending balance	$ 21	$ 6