|
Commitments and Contingencies - Schedule of Warranty Reserves (Detail) (USD $)
In Millions, unless otherwise specified |
3 Months Ended | 6 Months Ended | ||
|---|---|---|---|---|
|
Oct. 26, 2012
|
Oct. 28, 2011
|
Oct. 26, 2012
|
Oct. 28, 2011
|
|
| Commitments and Contingencies [Line Items] | ||||
| Beginning balance | $ 96.5 | $ 59.5 | $ 83.1 | $ 40.5 |
| Liability assumed in acquisition | 0 | 0 | 0 | 17.5 |
| Expense accrued during the period | 27.1 | 15.7 | 50.8 | 27.4 |
| Warranty costs incurred | (11.8) | (10.2) | (22.1) | (20.4) |
| Ending balance | $ 111.8 | $ 65.0 | $ 111.8 | $ 65.0 |
| X | ||||||||||
|
- Details
|
| X | ||||||||||
|
- Definition
Total liability for standard and extended product warranties acquired in a business acquisition. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Represents the aggregate increase in the liability for accruals related to standard and extended product warranties issued during the reporting period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Amount as of the balance sheet date of the aggregate standard product warranty liability. Does not include the balance for the extended product warranty liability. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Represents the aggregate decrease in the liability for payments made (in cash or in kind) to satisfy claims under the terms of the standard product warranty. Does not include any Increase or Decrease in the liability for payments related to extended product warranties. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|