Commitments and Guarantees (Tables)

12 Months Ended

Dec. 27, 2014

Commitments and Contingencies Disclosure [Abstract]

Schedule of Future Minimum Rental Payments for Operating Leases



Year	Operating leases
	(In millions)
2015	$	50
2016	46
2017	43
2018	41
2019	27
2019 and thereafter	133
Total non-cancelable operating lease commitments	$	340

Schedule of Future Unconditional Purchase Obligations



Year	Unconditional purchase obligations
	(In millions)
2015	$	542
2016	85
2017	102
2018	26
2019	—
2020 and thereafter	—
Total unconditional purchase commitments	$	755

Product Warranty Disclosure



	December 27, 2014				December 28, 2013
	(In millions)
Beginning balance	$	17			$	16
New warranties issued during the period	32				27
Settlements during the period	(39		)		(25		)
Changes in liability for pre-existing warranties during the period, including expirations	9				(1		)
Ending balance	$	19			$	17