Equity - Schedule of Earnings Per Share (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Oct. 01, 2016	Sep. 30, 2017	Oct. 01, 2016
Equity [Abstract]
Net Income, Basic	$ 297	$ 292	$ 841	$ 747
Average shares outstanding, Basic (in shares)	345	350	348	350
Earnings per share, Basic (in dollars per share)	$ 0.86	$ 0.83	$ 2.41	$ 2.13
Average shares outstanding, Dilutive potential common shares (in shares)	3	4	3	4
Earnings per share, Dilutive potential common shares (in dollars per share)	$ (0.01)	$ (0.01)	$ (0.02)	$ (0.02)
Net Income, Diluted	$ 297	$ 292	$ 841	$ 747
Average shares outstanding, Diluted (in shares)	348	354	351	354
Earnings per share, Diluted (in dollars per share)	$ 0.85	$ 0.82	$ 2.39	$ 2.11