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Pension and Postretirement Benefit Plans - Pension Asset Fair Value Level 3 (Details) - Qualified and Non-Pension Benefits - Level 3 - International - Funded - USD ($) $ in Millions | 12 Months Ended
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Dec. 31, 2021 | Dec. 31, 2020
Benefit Plan Information |  |
Defined benefit plan increase (decrease) related to aggregate of net purchases and net unrealized gains and losses | $ (7.0) | $ (1.0)
Defined benefit plan increase (decrease) related to currency exchange rates | (44.0) | 44.0
Defined benefit plan increase (decrease) related to Level 3 assets | $ (51.0) | $ 43.0

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- Definition The defined benefit plan increase/decrease related to aggregate of net purchases and net unrealized gains and losses. + References No definition available. + Details
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- Definition The defined benefit plan increase/decrease related to currency exchange rates. + References No definition available. + Details
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- Details
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