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Valuation and Qualifying Accounts (Details) (USD $)
In Millions, unless otherwise specified |
12 Months Ended | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
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Sep. 30, 2012
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Sep. 25, 2011
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Sep. 26, 2010
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| Changes in Valuation Allowances [Roll Forward] | ||||||||||||
| Balance at beginning of period | $ (103) | $ (54) | $ (87) | |||||||||
| (Charged) credited to costs and expenses | (47) | (36) | 33 | |||||||||
| Deductions | 1 | 4 | 3 | |||||||||
| Other | (1) | (17) | (3) | |||||||||
| Balance at end of period | (150) | (103) | (54) | |||||||||
| Valuation and Qualifying Accounts [Abstract] | ||||||||||||
| Adjustment to allowances and reserves from an acquisition | 12 | |||||||||||
| Adjustment recorded as a component of other comprehensive income (loss) | 5 | |||||||||||
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Allowances - trade receivables [Member]
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| Changes in Valuation Allowances [Roll Forward] | ||||||||||||
| Balance at beginning of period | (2) | (3) | (4) | |||||||||
| (Charged) credited to costs and expenses | 0 | 0 | (1) | |||||||||
| Deductions | 1 | 1 | 2 | |||||||||
| Other | 0 | 0 | 0 | |||||||||
| Balance at end of period | (1) | (2) | (3) | |||||||||
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Allowances - notes receivables [Member]
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| Changes in Valuation Allowances [Roll Forward] | ||||||||||||
| Balance at beginning of period | (3) | (3) | (1) | |||||||||
| (Charged) credited to costs and expenses | (4) | 0 | (2) | |||||||||
| Deductions | 0 | 0 | 0 | |||||||||
| Other | 0 | 0 | 0 | |||||||||
| Balance at end of period | (7) | (3) | (3) | |||||||||
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Allowances - investment receivables [Member]
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| Changes in Valuation Allowances [Roll Forward] | ||||||||||||
| Balance at beginning of period | (9) | [1] | (10) | [1] | ||||||||
| (Charged) credited to costs and expenses | 6 | [1] | 0 | [1] | ||||||||
| Deductions | 3 | [1] | 1 | [1] | ||||||||
| Other | 0 | [1] | 0 | [1] | ||||||||
| Balance at end of period | 0 | [1] | (9) | [1] | ||||||||
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Valuation allowance on deferred tax assets [Member]
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| Changes in Valuation Allowances [Roll Forward] | ||||||||||||
| Balance at beginning of period | (98) | (39) | (72) | |||||||||
| (Charged) credited to costs and expenses | (43) | (42) | 36 | |||||||||
| Deductions | 0 | 0 | 0 | |||||||||
| Other | (1) | [2] | (17) | [3] | (3) | [2] | ||||||
| Balance at end of period | $ (142) | $ (98) | $ (39) | |||||||||
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