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Pension Benefits | 3 Months Ended
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Jun. 30, 2021
Retirement Benefits [Abstract] |
Pension Benefits | Pension Benefits The net periodic expense for defined benefit pension plans was approximately zero and $7 million for the three months ended June 30, 2021 and 2020, respectively. Cash contributions to these plans were $14 million and $7 million for the three months ended June 30, 2021 and 2020, respectively. The projected unit credit method is utilized in measuring net periodic pension expense over the employees’ service life for the pension plans. Unrecognized actuarial losses exceeding 10% of the greater of the projected benefit obligation or the market value of assets are amortized on a straight-line basis over the average remaining future service periods and expected life expectancy.

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