SHAREHOLDERS' EQUITY - Additional Information (Detail) shares in Millions, $ in Millions	12 Months Ended
	Dec. 31, 2020 USD ($) Vote shares	Dec. 31, 2019 USD ($) shares	Dec. 31, 2018 USD ($) shares	Aug. 31, 2020 shares
Stockholders Equity Note [Line Items]
Common stock, share repurchase, dollar amount | $	$ 1,537	$ 1,627	$ 1,301
Remaining common stock available for purchase under share repurchase authorizations	99.2
Common stock, voting rights	are generally entitled to one vote per share until they have been held by the same beneficial owner for a continuous period of 48 months, at which time they become entitled to 10 votes per share
Share Held For Less Than A Continuous Forty Eight Month Period
Stockholders Equity Note [Line Items]
Common stock, votes per share | Vote	1
Share Held For Continuous Forty Eight Month Period
Stockholders Equity Note [Line Items]
Common stock, votes per share | Vote	10
Share Repurchase Program
Stockholders Equity Note [Line Items]
Stock acquired under share repurchase program, shares	37.9	32.0	28.9
Common stock, share repurchase, dollar amount | $	$ 1,500	$ 1,600	$ 1,300
Share Repurchase Authorization 2020
Stockholders Equity Note [Line Items]
Remaining common stock available for purchase under share repurchase authorizations				100.0