STOCKHOLDERS' EQUITY - Additional Information (Detail) - USD ($) $ / shares in Units, shares in Thousands			3 Months Ended
	Mar. 26, 2018	Dec. 22, 2017	Mar. 31, 2018	Mar. 26, 2018	Mar. 31, 2017	May 01, 2018	Dec. 31, 2017	Dec. 21, 2017	Dec. 14, 2017
Equity, Class of Treasury Stock [Line Items]
Share repurchase authorization									$ 3,000,000,000
Common shares acquired in connection with employee stock plans (in shares)			190		350
Common shares acquired in connection with employee stock plans, amount			$ 51,000,000		$ 74,000,000
Treasury stock reissued (in shares)			630
Treasury stock reissued			$ 66,000,000
Accumulated other comprehensive gain (loss)			(154,000,000)				$ 19,000,000
Net unrealized (losses) gains on investment securities
Equity, Class of Treasury Stock [Line Items]
Accumulated other comprehensive gain (loss)			(110,000,000)				125,000,000
Additional liability that would exist on closed block of long-term care policies assuming unrealized gains on investments backing such products were realized and reinvested at current yields
Equity, Class of Treasury Stock [Line Items]
Accumulated other comprehensive gain (loss)			$ 44,000,000				$ 106,000,000
December 2017 ASR
Equity, Class of Treasury Stock [Line Items]
Share repurchase authorization								$ 1,000,000,000.0
Share repurchase payment		$ 1,000,000,000
Shares repurchased (in shares)	460	3,280		3,740
Value of shares repurchased	$ 200,000,000	$ 800,000,000
Decrease in capital in excess of par value		$ 200,000,000
Average cost per share (in dollars per share)				$ 267.55
Subsequent Event
Equity, Class of Treasury Stock [Line Items]
Remaining authorized amount						$ 2,000,000,000