Equity Narrative (Details) - USD ($)	3 Months Ended		12 Months Ended
	Sep. 28, 2013	Jun. 29, 2013	Jan. 02, 2016	Jan. 03, 2015	Dec. 28, 2013	Dec. 31, 2015	Feb. 28, 2014	May. 31, 2013	Apr. 30, 2013
Equity, Class of Treasury Stock [Line Items]
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount			2,700,000	5,000,000	5,000,000
Shares issued to employees and directors under various benefit plans and stock purchase programs			5,000,000	4,000,000	10,000,000
Common stock repurchases (in shares)			11,000,000	11,000,000	9,000,000
Common stock repurchased			$ 731,000,000	$ 690,000,000	$ 544,000,000
April 2013 Share Repurchase Program
Equity, Class of Treasury Stock [Line Items]
Stock repurchase program, authorized amount									$ 1,000,000,000
May 2013 ShareRepurchase Program
Equity, Class of Treasury Stock [Line Items]
Common stock repurchases (in shares)	600,000.0	4,900,000.0
Accelerated share repurchases, payment								$ 355,000,000
February 2014 Share Repurchase Program
Equity, Class of Treasury Stock [Line Items]
Stock repurchase program, authorized amount							$ 1,500,000,000.0
December 2015 Share Repurchase Program [Member]
Equity, Class of Treasury Stock [Line Items]
Stock repurchase program, authorized amount						$ 1,500,000,000