STOCKHOLDERS' EQUITY - Repurchases of Common Stock (Narrative) (Details) - USD ($) $ / shares in Units, shares in Millions		3 Months Ended		9 Months Ended
	Sep. 26, 2019	Sep. 29, 2019	Sep. 30, 2018	Sep. 29, 2019	Sep. 30, 2018	Dec. 31, 2018
Shareholders Equity [Line Items]
Common stock repurchased (in shares)				2.2
Reduction to stockholders' equity due to repurchases of common stock		$ 218,000,000	$ 203,000,000	$ 718,000,000	$ 826,000,000
Total remaining authorization for future common share repurchases		$ 3,300,000,000		$ 3,300,000,000
Stock repurchase program, authorized amount, period increase (decrease)	$ 1,000,000,000.0
Par value of shares repurchased (in dollars per share)		$ 1		$ 1		$ 1
Additional paid-in capital after reduction		$ 0		$ 0		$ 0
Reduction to retained earnings
Shareholders Equity [Line Items]
Reduction to stockholders' equity due to repurchases of common stock		$ 72,000,000	$ 63,000,000	$ 350,000,000	$ 523,000,000