Shareholders' Equity - Summary of Dividends Declared and Paid (Details) - USD ($) $ / shares in Units, $ in Millions	3 Months Ended							9 Months Ended		12 Months Ended
	Jul. 01, 2017	Apr. 01, 2017	Dec. 31, 2016	Sep. 24, 2016	Jun. 25, 2016	Mar. 26, 2016	Dec. 26, 2015	Jul. 01, 2017	Jun. 25, 2016	Sep. 24, 2016
Equity [Abstract]
Dividends per share (in dollars per share)	$ 0.63	$ 0.57	$ 0.57	$ 0.57	$ 0.57	$ 0.52	$ 0.52	$ 1.77	$ 1.61	$ 2.18
Dividend amount	$ 3,281	$ 2,988	$ 3,042	$ 3,071	$ 3,117	$ 2,879	$ 2,898	$ 9,311		$ 11,965