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Pension and Other Postretirement Benefit Plans 8 (Details) (USD $)
In Thousands, unless otherwise specified |
Apr. 28, 2013
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|---|---|
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Pension Plan, Defined Benefit [Member]
|
|
| Defined Benefit Plan Disclosure [Line Items] | |
| 2014 | $ 168,604 |
| 2015 | 166,798 |
| 2016 | 170,395 |
| 2017 | 173,630 |
| 2018 | 176,858 |
| Years 2019-2023 | 923,753 |
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Other Postretirement Benefit Plans, Defined Benefit [Member]
|
|
| Defined Benefit Plan Disclosure [Line Items] | |
| 2014 | 14,674 |
| 2015 | 15,522 |
| 2016 | 16,334 |
| 2017 | 16,959 |
| 2018 | 17,244 |
| Years 2019-2023 | $ 84,295 |