Restructuring and Asset Impairment Charges, Net - Narrative (Details) - USD ($)	3 Months Ended		9 Months Ended
	Jun. 24, 2016	Jun. 26, 2015	Jun. 24, 2016	Jun. 26, 2015	Sep. 25, 2015
Restructuring Cost and Reserve [Line Items]
Restructuring reserves	$ 109,000,000		$ 109,000,000		$ 155,000,000
Minimum
Restructuring Cost and Reserve [Line Items]
Restructuring and related charges, expected in fiscal 2016	35,000,000		35,000,000
Maximum
Restructuring Cost and Reserve [Line Items]
Restructuring and related charges, expected in fiscal 2016	50,000,000		50,000,000
2014 and prior actions
Restructuring Cost and Reserve [Line Items]
Restructuring reserves	27,000,000		27,000,000		$ 38,000,000
Restructuring reserve utilized	2,000,000	$ 9,000,000	12,000,000	$ 38,000,000
Net restructuring charges incurred	0		1,000,000	11,000,000
Net restructuring reversals		1,000,000
Repositioning Actions | Charges Reflected in SG&A
Restructuring Cost and Reserve [Line Items]
Net repositioning charges related to professional fees	$ 8,000,000	$ 27,000,000	$ 19,000,000	$ 61,000,000