CONDENSED CONSOLIDATED BALANCE SHEETS (UNAUDITED) (PARENTHETICAL) - USD ($) $ in Millions		Apr. 02, 2017	Dec. 31, 2016
Statement of Financial Position [Abstract]
Allowance for doubtful accounts		$ 32	$ 30
Accumulated depreciation		$ 1,435	$ 1,358
Preferred stock, par value (in dollars per share)		$ 0.01	$ 0.01
Preferred stock, shares authorized		1,000,000,000	1,000,000,000
Preferred stock, shares issued		0	0
Common stock, par value (in dollars per share)		$ 0.01	$ 0.01
Common stock, shares authorized		6,000,000,000	6,000,000,000
Common stock issued, shares	[1]	501,891,243	501,891,243
Common stock, shares outstanding		491,328,479	492,855,297
Treasury stock, shares	[1]	10,562,764	9,035,946

[1] Shares may not add due to rounding.