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Pension and Other Postretirement Benefits (Details) $ in Millions	9 Months Ended
	Sep. 30, 2020 USD ($)
Retirement Benefits [Abstract]
Defined Benefit Plan, Plan Assets, Contributions by Employer	$ 11.0
Defined Benefit Plan, Expected Future Employer Contributions, Remainder of Fiscal Year	$ 21.0

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Amount of contribution received by defined benefit plan from employer which increases plan assets.

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Amount of contribution expected to be received by defined benefit plan from employer in remainder of current fiscal year. Excludes contribution previously paid by employer in current fiscal year.

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