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Accrued Product Warranty (Detail) (USD $) In Millions, unless otherwise specified	9 Months Ended
	Jun. 29, 2012	Jul. 01, 2011
Warranty Liability
Accrued product warranty, at beginning of period	$ 50.1	$ 53.2
Charged to cost of revenues	41.3	32.0
Actual product warranty expenditures	(42.1)	(33.2)
Accrued product warranty, at end of period	$ 49.3	$ 52.0

- Definition

Carrying value as of the balance sheet date of obligations incurred through that date and payable for estimated claims under standard and extended warranty protection rights granted to customers.

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