Litigation, Other Contingencies and Guarantees (Narrative) (Details)
$ in Thousands |
Oct. 28, 2017
USD ($)
|
| Loss Contingencies [Line Items] |
|
| Recorded Best Estimate Environmental Liabilities |
$ 24,000
|
| Loss Contingency Accrual |
22,000
|
| Estimated Insurance Recoveries |
22,000
|
| Class Action Securities Litigation - Amount to be Funded by Insurance [Member] |
|
| Loss Contingencies [Line Items] |
|
| Estimated Litigation Liability |
97,500
|
| ERISA Class Action Litigation [Member] |
|
| Loss Contingencies [Line Items] |
|
| Estimated Litigation Liability |
4,500
|
| Employment Class Action Litigation CA [Member] |
|
| Loss Contingencies [Line Items] |
|
| Estimated Litigation Liability |
1,750
|
| Employment Class Action Litigation IL [Member] |
|
| Loss Contingencies [Line Items] |
|
| Estimated Litigation Liability |
5,000
|
| Minimum [Member] |
|
| Loss Contingencies [Line Items] |
|
| Estimate Potential Environmental Liabilities |
20,000
|
| Maximum [Member] |
|
| Loss Contingencies [Line Items] |
|
| Estimate Potential Environmental Liabilities |
$ 25,000
|