Goodwill and Other Intangible Assets - Narrative (Details) - USD ($) $ in Millions	1 Months Ended	6 Months Ended
	Jan. 31, 2015	Jul. 04, 2015	Jun. 28, 2014
Acquisitions, Goodwill and Other Intangible Assets [Abstract]
Payments to acquire business	$ 125
Payments to acquire business, net of cash and cash equivalents acquired	$ 117	$ 117	$ 0
Finite-Lived Intangible Assets, Future Amortization Expense [Abstract]
Amortization		4	$ 4
Estimated annual amortization expense in year one		$ 8