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Employee Benefit Plans - Summary of the Sensitivity of Retirement Obligations and Retirement Benefit Costs of Plans to Changes in the Key Assumptions (Details) $ in Millions | 12 Months Ended
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Dec. 31, 2020 USD ($)
Pension Plan |
Estimated increase (decrease) in 2021 pension cost |
0.50% increase in discount rate | $ (1.0)
0.50% decrease in discount rate | 1.0
0.50% increase in long-term return on assets | (0.8)
0.50% decrease in long-term return on assets | 0.8
Estimated increase (decrease) in Projected Benefit Obligation for the year ended December 31, 2019 |
0.50% increase in discount rate | (16.1)
0.50% decrease in discount rate | 17.8
Postretirement Medical and Other |
Estimated increase (decrease) in Projected Benefit Obligation for the year ended December 31, 2019 |
0.50% increase in discount rate | (0.5)
0.50% decrease in discount rate | $ 0.5

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- Definition The effect of a 0.5 percentage-point decrease in the discount rate on the retirement benefit costs in the next fiscal year. + References No definition available. + Details
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- Definition The effect of a 0.5 percentage-point decrease in the discount rate on the retirement benefit obligation. + References No definition available. + Details
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- Definition The effect of a 0.5 percentage-point decrease in the long-term return on assets on the retirement benefit costs in the next fiscal year. + References No definition available. + Details
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- Definition The effect of a 0.5 percentage-point increase in the discount rate on the retirement benefit costs in the next fiscal year. + References No definition available. + Details
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- Definition The effect of a 0.5 percentage-point increase in the discount rate on the retirement benefit obligation. + References No definition available. + Details
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- Details
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