RECLASSIFICATIONS FROM ACCUMULATED OTHER COMPREHENSIVE INCOME - Schedule of reclassifications from accumulated other comprehensive (loss) income (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021	Mar. 22, 2021
Reclassifications from accumulated other comprehensive (loss) income
Other, net	$ 11	$ 440	$ 37	$ 648
Tax (benefit)	(103)	(12)	(178)	(55)
Reclassifications, after tax	(294)	15	(546)	(99)
Interest expense	28	25	53	227
Disproportionate tax expense		11
5.95 Notes and Debentures Due March 15, 2022
Reclassifications from accumulated other comprehensive (loss) income
Debt instrument stated interest rate					5.95%
Reclassification out of Accumulated Other Comprehensive Income
Reclassifications from accumulated other comprehensive (loss) income
Settlement loss		447
Tax (benefit)		(96)
Reclassification out of Accumulated Other Comprehensive Income | Accumulated Defined Benefit Plans Adjustment, Net Gain (Loss) Including Portion Attributable to Noncontrolling Interest
Reclassifications from accumulated other comprehensive (loss) income
Other, net	1	9	3	16
Settlement loss	0	(447)	0	(447)
Tax (benefit)	0	98	1	100
Reclassifications, after tax	1	358	2	363
Reclassification out of Accumulated Other Comprehensive Income | Accumulated Gain (Loss), Cash Flow Hedge, Including Noncontrolling Interest
Reclassifications from accumulated other comprehensive (loss) income
Tax (benefit)	0	0	0	(5)
Reclassifications, after tax	0	0	0	(7)
Reclassification out of Accumulated Other Comprehensive Income | Accumulated Gain (Loss), Cash Flow Hedge, Including Noncontrolling Interest | Interest Rate Swap
Reclassifications from accumulated other comprehensive (loss) income
Interest expense	0	0	$ 0	$ 2
Reclassification out of Accumulated Other Comprehensive Income | Accumulated Foreign Currency Adjustment Attributable to Parent | Hüppe
Reclassifications from accumulated other comprehensive (loss) income
Other, net	$ (23)	$ (3)