Shareholders' Equity (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	3 Months Ended			12 Months Ended
	Jul. 03, 2016	Apr. 03, 2016	Apr. 05, 2015	Dec. 31, 2015	Mar. 02, 2016
Class of Stock [Line Items]
Stock Repurchased During Period, Shares		7.8	4.7	22.8
Stock Repurchased During Period, Value		$ 1,000	$ 634	$ 3,200
Payments for Repurchase of Common Stock		$ 1,026	620
Stock Repurchase Program, Number of Shares Authorized to be Repurchased					10.0
Stock Repurchase Program, Remaining Number of Shares Authorized to be Repurchased		11.8
Stock Repurchase Program, Authorized Shares Remaining for Repurchase, Percentage Of Total Shares Outstanding		4.00%
Recognized net actuarial loss (before tax)		$ 83	112
Amortization of prior service credit (before tax)		$ 19	$ 18
Common Stock, Dividends, Per Share, Declared		$ 0.76	$ 0.69
Dividends paid in cash		$ 215	$ 206
Subsequent Event [Member]
Class of Stock [Line Items]
Payments for Repurchase of Common Stock	$ 13