FAIR VALUE MEASUREMENTS - Estimated Fair Values and Notional Amounts of Derivatives (Details) - USD ($) $ in Millions	1 Months Ended	3 Months Ended	12 Months Ended
	Apr. 30, 2021	Mar. 31, 2021	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Derivative [Line Items]
Losses on foreign currency exchange derivatives			$ 30	$ 31	$ 19
Recurring Basis
Derivative [Line Items]
Estimated fair value of derivative assets			13,315	14,054
Not Designated as Hedging Instrument | Recurring Basis | Foreign currency exchange derivatives
Derivative [Line Items]
Estimated fair value of derivative assets			5	9
Estimated fair value of derivative liabilities			11	7
Designated as Hedging Instrument | Treasury Lock | Cash Flow Hedging
Derivative [Line Items]
Notional amount:		$ 1,800
Other comprehensive income (loss), cash flow hedge, gain (loss), before reclassification and tax		$ 15
Payments for hedge, financing activities	$ 15
Level 2 | Recurring Basis
Derivative [Line Items]
Estimated fair value of derivative assets			30	534
Level 2 | Not Designated as Hedging Instrument | Recurring Basis | Foreign currency exchange derivatives
Derivative [Line Items]
Estimated fair value of derivative assets			5	9
Estimated fair value of derivative liabilities			11	7
Foreign currency purchases | Not Designated as Hedging Instrument | Foreign currency exchange derivatives
Derivative [Line Items]
Notional amount:			840	898
Foreign currency sales | Not Designated as Hedging Instrument | Foreign currency exchange derivatives
Derivative [Line Items]
Notional amount:			$ 1,857	$ 839