Leases (Narrative) (Details) (USD $) In Millions | Aug. 28, 2011 | Aug. 29, 2010 |
|---|---|---|
| Leases | ||
| Gross assets recorded under leases | $ 170 | $ 169 |
| Accumulated amortization related to leased assets | 13 | 7 |
| Sublease income | 183 | |
| Asset retirement obligations associated with these leases | $ 31 | $ 26 |
| X | ||||||||||
- Definition Noncurrent portion of the carrying amount of a liability for an asset retirement obligation. An asset retirement obligation is a legal obligation associated with the disposal or retirement of a tangible long-lived asset that results from the acquisition, construction or development, or the normal operations of a long-lived asset, except for certain obligations of lessees. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition Property, plant, or equipment held under lease agreements classified as an asset. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition The total charge for the use of long-lived depreciable assets subject to a lease meeting the criteria for capitalization. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Definition Contractually required future rental payments receivable on noncancelable subleasing arrangements. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|