STOCKHOLDERS' EQUITY - Stock Repurchase Programs Narrative (Details) - USD ($) shares in Millions	9 Months Ended
	Sep. 30, 2019	Oct. 31, 2020	Oct. 29, 2020	Sep. 30, 2020	Nov. 30, 2018	Feb. 28, 2018	Nov. 30, 2016	Jul. 31, 2012
Stockholders Equity Note [Line Items]
Stock repurchase program, authorized amount								$ 2,000,000,000.0
Stock repurchase program, additional authorized amount					$ 2,000,000,000.0	$ 1,500,000,000	$ 1,500,000,000
Purchases of treasury stock (in shares)	13.5
Stock repurchase program, liability	$ 37,000,000
Remaining value available under stock repurchase programs				$ 897,000,000
Subsequent Event
Stockholders Equity Note [Line Items]
Stock repurchase program, additional authorized amount		$ 1,500,000,000
Remaining value available under stock repurchase programs			$ 2,400,000,000