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Income Taxes (Summary of Activity Related to Unrecognized Tax Benefits) (Details) (USD $)
In Millions, unless otherwise specified |
12 Months Ended | ||
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Sep. 30, 2012
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Oct. 02, 2011
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Oct. 03, 2010
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| Income Tax Expense (Benefit) [Abstract] | |||
| Beginning balance | $ 52.9 | $ 68.4 | $ 49.1 |
| Increase related to prior year tax positions | 8.8 | 4.4 | 35.0 |
| Decrease related to prior year tax positions | 0 | (32.3) | (21.4) |
| Increases related to current year tax positions | 20.0 | 26.0 | 14.1 |
| Decreases related to current year tax positions | (1.1) | (0.8) | (8.1) |
| Decreases related to settlements with taxing authorities | (0.5) | (5.0) | 0 |
| Decreases related to lapsing of statute of limitations | (4.8) | (7.8) | (0.3) |
| Ending balance | $ 75.3 | $ 52.9 | $ 68.4 |
| X | ||||||||||
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- Details
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| X | ||||||||||
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- Definition
The gross amount of unrecognized tax benefits pertaining to uncertain tax positions taken in tax returns as of the balance sheet date. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
The gross amount of decreases in unrecognized tax benefits resulting from tax positions that have been or will be taken in the tax return for the current period, excluding amounts pertaining to examined tax returns. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
The gross amount of decreases in unrecognized tax benefits resulting from tax positions taken in prior period tax returns, excluding amounts pertaining to examined tax returns. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
The gross amount of decreases in unrecognized tax benefits resulting from settlements with taxing authorities. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
The gross amount of increases in unrecognized tax benefits resulting from tax positions that have been or will be taken in the tax return for the current period, excluding amounts pertaining to examined tax returns. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
The gross amount of increases in unrecognized tax benefits resulting from tax positions taken in prior period tax returns, excluding amounts pertaining to examined tax returns. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
The gross amount of decreases in unrecognized tax benefits resulting from lapses of the applicable statutes of limitations. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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