TREASURY STOCK (Details) - USD ($)	1 Months Ended	3 Months Ended		9 Months Ended
	Dec. 31, 2019	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Equity, Class of Treasury Stock [Line Items]
Authorized stock repurchase programs (in shares)		2,000	699,000	682,000	3,760,000
Authorized stock repurchase programs		$ 4,000,000	$ 1,350,000,000	$ 1,259,000,000	$ 6,812,000,000
General authorization for shares withheld on stock award vesting (in shares)		2,000	5,000	81,000	84,000
General authorization for shares withheld on stock award vesting		$ 4,000,000	$ 9,000,000	$ 137,000,000	$ 146,000,000
Treasury stock repurchased but unsettled by period end, amount	$ 40,000,000
Payments related to tax withholding for share-based compensation				$ 137,000,000	$ 140,000,000
Treasury stock, shares (in shares)	21,762,070	22,444,443		22,444,443
2019 Share Repurchase Program
Equity, Class of Treasury Stock [Line Items]
Remaining authorization to repurchase common stock	$ 11,500,000,000	$ 10,400,000,000		$ 10,400,000,000
Amount of common stock repurchases authorized	$ 15,000,000,000.0
Common Stock Repurchase Program
Equity, Class of Treasury Stock [Line Items]
Authorized stock repurchase programs (in shares)		0	694,000	601,000	3,676,000
Authorized stock repurchase programs		$ 0	$ 1,341,000,000	$ 1,122,000,000	$ 6,666,000,000