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Litigation and Contingencies Environmental Remediation (Details) - USD ($) $ in Millions | 3 Months Ended | 6 Months Ended
--- | --- | ---
Mar. 28, 2020 | Jul. 03, 2021 | Jun. 27, 2020
Environmental Exit Cost [Line Items] |  |  |
Site Contingency, Recovery from Third Party of Environmental Remediation Cost | $ 55.0 |  |
Accrual for Environmental Loss Contingencies [Roll Forward] |  |  |
Remediation liability at beginning of the year | $ 124.4 | $ 101.8 | $ 124.4
Changes in estimate |  | 0.0 | 0.0
Amounts paid |  | (8.7) | (17.7)
Remediation liability at the end of the quarter |  | 93.1 | $ 106.7
Environmental remediation accrual, current |  | 24.8 |
Environmental remediation accrual, noncurrent |  | $ 68.3 |
Site Contingency, Time Frame of Disbursements |  | 25 |

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