Restructuring and Asset Impairment Charges, Net - Restructuring and Asset Impairment Charges by Action (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Jun. 24, 2016	Jun. 26, 2015	Jun. 24, 2016	Jun. 26, 2015
Restructuring Cost and Reserve [Line Items]
Total restructuring and asset impairment charges, net	$ 5	$ 38	$ 21	$ 108
Total restructuring and asset impairment charges, net
Restructuring Cost and Reserve [Line Items]
Total restructuring and asset impairment charges, net	5	38	22	108
Charges reflected in SG&A
Restructuring Cost and Reserve [Line Items]
Total restructuring and asset impairment charges, net	0	0	1	0
2016 actions
Restructuring Cost and Reserve [Line Items]
Total restructuring and asset impairment charges, net	6	0	21	0
2015 actions
Restructuring Cost and Reserve [Line Items]
Total restructuring and asset impairment charges, net	(1)	39	0	97
2014 and prior actions
Restructuring Cost and Reserve [Line Items]
Total restructuring and asset impairment charges, net	$ 0	$ (1)	$ 1	$ 11