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Supplemental Financial Information (Cash Flows Information) (Details) - USD ($) $ in Millions	4 Months Ended	8 Months Ended	12 Months Ended
	Apr. 30, 2021	Dec. 31, 2021	Dec. 31, 2022	Dec. 31, 2020
Supplemental Financial Information [Abstract]
(Increase) decrease in accounts receivable	$ 23.2	$ (18.3)	$ (6.9)	$ 53.3
(Increase) decrease in other assets	27.3	(48.4)	(104.6)	(63.8)
(Decrease) increase in liabilities	18.0	71.4	146.9	(11.5)
Changes in operating assets and liabilities	$ 68.5	$ 4.7	$ 35.4	$ (22.0)

X

- Definition

The increase (decrease) during the reporting period in amount due within one year (or one business cycle) from customers for the credit sale of goods and services.

+ References

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)
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- Definition

Amount of increase (decrease) in operating assets classified as other.

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Amount of increase (decrease) in operating assets after deduction of operating liabilities classified as other.

+ References

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- Definition

Amount of increase (decrease) in operating liabilities classified as other.

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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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-Topic 230
-SubTopic 10
-Section 45
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Supplemental Financial Information [Abstract]

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