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Summary of Significant Accounting Policies Summary of Significant Accounting Policies
 3 Months Ended
Mar. 31, 2022
Accounting Policies [Abstract]  
Schedule of Cash and Cash Equivalents [Table Text Block]
The following table provides a reconciliation of cash and cash equivalents and restricted cash and cash equivalents reported in our consolidated balance sheets to the total shown in our consolidated statements of cash flows:
(In millions)As of
 March 31, 2022December 31, 2021March 31, 2021December 31, 2020
Cash and cash equivalents$17.6 $23.3 $45.7 $16.0 
Restricted cash and cash equivalents481.1 410.9 538.5 380.2 
Total cash and cash equivalents and restricted cash and cash equivalents
$498.7 $434.2 $584.2 $396.2