Shareholders' Equity (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	3 Months Ended		6 Months Ended
	Jul. 03, 2016	Jul. 05, 2015	Jul. 03, 2016	Jul. 05, 2015	Mar. 02, 2016
Equity [Abstract]
Number of shares authorized to be repurchased (shares)					10.0
Number of shares repurchased (shares)			8.9	12.1
Value of shares repurchased			$ 1,200	$ 1,700
Remaining number of shares authorized to be repurchased (shares)	10.7		10.7
Shares remaining to be repurchased as a percent of total shares outstanding	4.00%		4.00%
Dividends declared (usd per share)	$ 0.76	$ 0.69	$ 1.52	$ 1.38
Dividends paid in cash	$ 232	$ 226	$ 447	$ 432
Recognized net actuarial loss (before tax)			166	222
Amortization of prior service credit (before tax)			$ 37	$ 36