Accounting Policies (Details) - USD ($) $ in Millions	3 Months Ended
Mar. 31, 2022	Mar. 31, 2021
New Accounting Pronouncements or Change in Accounting Principle
Change in Insurance Reserves and Liabilities	$ (38.3)	$ 259.3
Previously Reported [Member]
New Accounting Pronouncements or Change in Accounting Principle
Change in Insurance Reserves and Liabilities		$ (31.8)

The increase (decrease) in insurance liability balances during the period.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 28
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=123570139&loc=d3e3602-108585

Name:	us-gaap_IncreaseDecreaseInInsuranceLiabilities
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration