Revision of Prior Period Financial Statements - Revised Consolidated Statements of Comprehensive Income (Details) - USD ($) $ in Millions	3 Months Ended	9 Months Ended
Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Net income	$ 7.3	$ 879.8	$ 208.5	$ 1,240.9
Total comprehensive income	(255.4)	191.7	(726.4)	447.0
Total comprehensive income attributable to stockholders	$ (255.4)	191.7	$ (726.4)	447.0
As Reported
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Net income		882.4		1,248.8
Total comprehensive income		194.3		454.9
Total comprehensive income attributable to stockholders		194.3		454.9
Adjustment
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Net income		(2.6)		(7.9)
Total comprehensive income		(2.6)		(7.9)
Total comprehensive income attributable to stockholders		$ (2.6)		$ (7.9)

Amount after tax of increase (decrease) in equity from transactions and other events and circumstances from net income and other comprehensive income. Excludes changes in equity resulting from investments by owners and distributions to owners.

The consolidated profit or loss for the period, net of income taxes, including the portion attributable to the noncontrolling interest.

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+ Details