STOCKHOLDERS' EQUITY - Repurchases of Common Stock (Narrative) (Details) - USD ($) $ / shares in Units, shares in Millions	3 Months Ended
	Mar. 25, 2018	Mar. 26, 2017	Dec. 31, 2017
Shareholders Equity [Line Items]
Common stock repurchased (in shares)	0.9
Common stock repurchased, amount	$ 300,000,000	$ 500,000,000
Total remaining authorization for future common share repurchases	$ 3,200,000,000
Par value of shares repurchased (in dollars per share)	$ 1		$ 1
Additional paid-in capital after reduction	$ 0		$ 0
Reduction to stockholders' equity due to repurchases of common stock	300,000,000	500,000,000
Reduction to retained earnings
Shareholders Equity [Line Items]
Reduction to stockholders' equity due to repurchases of common stock	$ 274,000,000	$ 469,000,000