Employee Retirement Plans (Estimated Contributions and Benefit Payments) (Details) $ in Millions	Dec. 31, 2022 USD ($)
Pension Benefits
Defined Benefit Plan, Estimated Future Benefit Payments
2023	$ 35.4
2024	33.7
2025	33.0
2026	31.7
2027	30.8
2028 - 2032	134.7
Thereafter	50.0
Total	349.3
Qualified Plan
Defined Benefit Plan Disclosure [Line Items]
Expected employer contributions in next fiscal year	0.0
Nonqualified Plan
Defined Benefit Plan Disclosure [Line Items]
Expected employer contributions in next fiscal year	$ 1.5

Defined Benefit Plan, Expected Future Benefit Payments, Thereafter

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Amount of contribution expected to be received by defined benefit plan from employer in next fiscal year following current fiscal year.

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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 20
-Section 50
-Paragraph 1
-Subparagraph (g)
-URI http://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 20
-Section 55
-Paragraph 18
-URI http://asc.fasb.org/extlink&oid=123450688&loc=d3e4587-114921

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