Employee Benefit Plans (Accumulated Other Comprehensive Income (Loss), of the Prior Service Costs and Actuarial Losses) (Details) - USD ($) $ in Millions	12 Months Ended
Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Actuarial Losses [Roll Forward]
Net change in defined benefit plans arising during the period	$ 25.5	$ (7.4)	$ (6.6)
Recognized as a component of net pension expense	(4.4)	(4.7)	$ (4.9)
Pension Plans [Member]
Actuarial Losses [Roll Forward]
Actuarial Loss Beginning Balance	77.7
Net change in defined benefit plans arising during the period	(25.2)
Recognized as a component of net pension expense	(4.5)
Actuarial Loss Ending Balance	$ 48.0	$ 77.7

Amount, before tax, of reclassification adjustment from accumulated other comprehensive income (loss) for gain (loss) of defined benefit plan.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 220
-SubTopic 10
-Section 45
-Paragraph 11
-URI http://asc.fasb.org/extlink&oid=124509347&loc=d3e637-108580

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 20
-Section 50
-Paragraph 1
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Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
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Reference 4: http://www.xbrl.org/2003/role/disclosureRef
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-Name Accounting Standards Codification
-Topic 220
-SubTopic 10
-Section 45
-Paragraph 17A
-URI http://asc.fasb.org/extlink&oid=124509347&loc=SL34724391-108580

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Balance Type:	debit
Period Type:	duration