Discontinued Operations by Type (Details) (USD $) In Millions	12 Months Ended
	Sep. 25, 2011
Restructuring and Related Cost [Line Items]
Total net restructuring-related costs recorded	$ 300
Total net restructuring charges	58
Maximum future restructuring and restructuring-related charges	25
Minimum future cash expenditures	75
Maximum future cash expenditures	115
Restructuring Reserve [Roll Forward]
Beginning balance of restructuring accrual	0
Initial costs	79
Adjustments to costs	(8)
Cash payments	(28)
Ending balance of restructuring accrual	43
Contract Termination Costs [Member]
Restructuring and Related Cost [Line Items]
Total net restructuring charges	48
Restructuring Reserve [Roll Forward]
Beginning balance of restructuring accrual	0
Initial costs	63
Adjustments to costs	(2)
Cash payments	(22)
Ending balance of restructuring accrual	39
Other Costs [Member]
Restructuring Reserve [Roll Forward]
Beginning balance of restructuring accrual	0
Initial costs	16
Adjustments to costs	(6)
Cash payments	(6)
Ending balance of restructuring accrual	$ 4