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v3.22.1

Pension and Other Postretirement Benefit Plans (Details) - USD ($) $ in Millions | 3 Months Ended
--- | ---
Mar. 31, 2022 | Mar. 31, 2021
Pension [Member] |  |  |
Components of Net Periodic Benefit Cost (Credit) [Abstract] |  |  |
Service Cost |  | $ 2.4 | $ 2.7
Interest Cost | [1] | 6.7 | 6.1
Expected Return on Plan Assets | [1] | (10.4) | (10.8)
Amortization of Prior Service Credits | [1] | 0.0 | 0.0
Amortization of Net Loss | [1] | 3.2 | 4.7
Net Periodic Benefit Cost (Credit) |  | 1.9 | 2.7
Employer Contributions to Defined Benefit Plans |  | 0.0 | 10.3
Defined Benefit Plan, Expected Future Employer Contributions, Remainder of Fiscal Year |  | 0.0 |
Other Postretirement [Member] |  |  |
Components of Net Periodic Benefit Cost (Credit) [Abstract] |  |  |
Service Cost |  | 0.8 | 0.9
Interest Cost | [1] | 1.1 | 1.1
Expected Return on Plan Assets | [1] | (2.4) | (2.4)
Amortization of Prior Service Credits | [1] | (1.9) | (1.9)
Amortization of Net Loss | [1] | 0.1 | 0.7
Net Periodic Benefit Cost (Credit) |  | (2.3) | (1.6)
Employer Contributions to Defined Benefit Plans |  | 0.0 | $ 0.0
Defined Benefit Plan, Expected Future Employer Contributions, Remainder of Fiscal Year |  | $ 0.0 |
[1] | These components of net periodic benefit cost (credit) are included in the line item “Other” under Other Income (Expense) on the Consolidated Statement of Income.

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- Definition Amount of expected return (loss) recognized in net periodic benefit (cost) credit, calculated based on expected long-term rate of return and market-related value of plan assets of defined benefit plan. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 55 -Paragraph 17 -URI http://asc.fasb.org/extlink&oid=123450688&loc=d3e4179-114921 Reference 2: http://www.xbrl.org/2003/role/exampleRef -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 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (h)(3) -URI http://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 45 -Paragraph 3A -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=123453770&loc=SL108413299-114919 Reference 5: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 6 -Subparagraph (a)(3) -URI http://asc.fasb.org/extlink&oid=123447040&loc=d3e2709-114920 + Details
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