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Commitments and Contingencies - Narrative (Details) |  |  | 1 Months Ended | 12 Months Ended
--- | --- | --- | --- | ---
Jun. 01, 2021 USD ($) | May 31, 2021 USD ($) | Jun. 30, 2018 defendant | Mar. 31, 2016 party mi | May 31, 2007 claim entity | Dec. 31, 2021 USD ($) mi
Operating Leased Assets [Line Items] |  |  |  |  |  |
Non-catastrophic property deductible (up to) |  |  |  |  |  | $ 100,000,000
Casualty and catastrophic property deductible (up to) |  |  |  |  |  | $ 75,000,000
Fuel Surcharge Antitrust Litigation |  |  |  |  |  |
Operating Leased Assets [Line Items] |  |  |  |  |  |
Number of other U.S.-based entities mentioned in class action lawsuit | entity |  |  |  |  | 3 |
Number of consolidated class action lawsuits | claim |  |  |  |  | 1 |
Environmental Litigation |  |  |  |  |  |
Operating Leased Assets [Line Items] |  |  |  |  |  |
Number of miles pertaining to Passaic River tidal reach required to be studied by EPA | mi |  |  |  |  |  | 17
Number of miles under study | mi |  |  |  | 8 |  |
Number of parties participating in allocation process to assign responsibility for costs under study | party |  |  |  | 80 |  |
Number of defendants | defendant |  |  | 110 |  |  |
Minimum | Pending Litigation |  |  |  |  |  |
Operating Leased Assets [Line Items] |  |  |  |  |  |
Range of possible loss from legal proceedings |  |  |  |  |  | $ 2,000,000
Maximum | Pending Litigation |  |  |  |  |  |
Operating Leased Assets [Line Items] |  |  |  |  |  |
Range of possible loss from legal proceedings |  |  |  |  |  | $ 25,000,000
Casualty |  |  |  |  |  |
Operating Leased Assets [Line Items] |  |  |  |  |  |
Self-insured retention amount per occurrence (up to) | $ 100,000,000 | $ 75,000,000 |  |  |  |

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- Definition Number of miles on the Passaic River tidal reach required to be studied as determined by the US Environmental Protection Agency. + References No definition available. + Details
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