Equity - Narrative (Details) - USD ($) shares in Millions, $ in Millions	3 Months Ended		12 Months Ended
	Apr. 02, 2016	Apr. 04, 2015	Jan. 02, 2016	Dec. 31, 2015	Feb. 28, 2014
Equity, Class of Treasury Stock [Line Items]
Anti-dilutive potential common shares excluded from reconciliation	2	2
Common stock repurchased (in shares)	3	4
Common stock repurchased	$ 210	$ 285	$ 731
Payments for Repurchase of Common Stock	198	$ 285
Treasury stock
Equity, Class of Treasury Stock [Line Items]
Accrued Liabilities	$ 12
Common stock repurchased (in shares)	3		11
Common stock repurchased	$ 210		$ 731
February 2014 Share Repurchase Program
Equity, Class of Treasury Stock [Line Items]
Stock repurchase program, authorized amount					$ 1,500
December 2015 Share Repurchase Program
Equity, Class of Treasury Stock [Line Items]
Stock repurchase program, authorized amount				$ 1,500