UNAUDITED CONDENSED CONSOLIDATED STATEMENTS OF EQUITY - USD ($) shares in Millions, $ in Millions	Common Stock [Member]	Additional Paid-in Capital [Member]	Treasury Stock [Member]	Retained Earnings [Member]	Accumulated Other Comprehensive Loss [Member]	Noncontrolling Interests [Member]	Total
Beginning Balance at Dec. 31, 2015	$ 1	$ 6,051	$ (6,851)	$ 5,728	$ (574)	$ 74	$ 4,429
Beginning Balance (in shares) at Dec. 31, 2015	78.1
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income				522		10	532
Other comprehensive income					7		7
Distributions to noncontrolling interests						(12)	(12)
Cash dividends declared				(165)			(165)
Shares issued:
Employee savings plans		94					94
Employee savings plans (in shares)	0.7
Exercise of stock options		49					49
Exercise of stock options (in shares)	0.6
Employee stock purchase plan		16					16
Employee stock purchase plan (in shares)	0.4
Vesting of restricted stock and performance units							0
Vesting of restricted stock and performance units (in shares)	0.5
Repurchases of common stock to satisfy tax withholding obligations		(20)					(20)
Repurchases of common stock to satisfy tax withholding obligations (in shares)	(0.2)
Stock-based compensation expense		34					34
Treasury stock purchased			(326)				(326)
Treasury stock purchased (in shares)	(2.7)
Other				2			2
Ending Balance at Sep. 23, 2016	$ 1	6,224	(7,177)	6,087	(567)	72	4,640
Ending Balance (in shares) at Sep. 23, 2016	77.4
Beginning Balance at Dec. 31, 2016	$ 1	6,284	(7,224)	6,218	(726)	71	4,624
Beginning Balance (in shares) at Dec. 31, 2016	77.2
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income				388		12	400
Other comprehensive income					153		153
Distributions to noncontrolling interests						(13)	(13)
Cash dividends declared				(177)			(177)
Shares issued:
Employee savings plans		96					96
Employee savings plans (in shares)	0.6
Exercise of stock options		36					36
Exercise of stock options (in shares)	0.4
Employee stock purchase plan		16					16
Employee stock purchase plan (in shares)	0.2
Vesting of restricted stock and performance units							0
Vesting of restricted stock and performance units (in shares)	0.3
Repurchases of common stock to satisfy tax withholding obligations		(18)					(18)
Repurchases of common stock to satisfy tax withholding obligations (in shares)	(0.1)
Stock-based compensation expense		43					43
Treasury stock purchased			(91)				(91)
Treasury stock purchased (in shares)	(0.5)
Ending Balance at Sep. 29, 2017	$ 1	$ 6,457	$ (7,315)	$ 6,429	$ (573)	$ 70	$ 5,069
Ending Balance (in shares) at Sep. 29, 2017	78.1