Employee Benefit Plans and Other Postretirement Benefits - Schedule of Estimated Benefit Payments (Details) $ in Millions	Dec. 31, 2020 USD ($)
Pension Plans
Defined Benefit Plans and Other Postretirement Benefit Plans [Line Items]
2021	$ 56.5
2022	60.2
2023	63.9
2024	67.0
2025 - 2030	456.2
Postretirement Plans
Defined Benefit Plans and Other Postretirement Benefit Plans [Line Items]
2021	0.5
2022	0.5
2023	0.5
2024	0.5
2025 - 2030	$ 3.4

Amount of benefit for defined benefit plan expected to be paid in five fiscal years after fifth fiscal year following current fiscal year.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 20
-Section 50
-Paragraph 1
-Subparagraph (f)
-URI http://asc.fasb.org/extlink&oid=118255775&loc=d3e1928-114920

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Amount of benefit for defined benefit plan expected to be paid in next fiscal year following current fiscal year.

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Amount of benefit for defined benefit plan expected to be paid in fourth fiscal year following current fiscal year.

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Amount of benefit for defined benefit plan expected to be paid in third fiscal year following current fiscal year.

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Amount of benefit for defined benefit plan expected to be paid in second fiscal year following current fiscal year.

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