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Earnings Per Share - Summary of Number of Weighted-Average Shares Outstanding (Details) - shares shares in Millions		12 Months Ended
		Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Weighted Average Number of Shares Outstanding Reconciliation [Abstract]
Weighted-average number of common shares outstanding - basic (in shares)		95.3	95.3	95.5
Weighted-average number of common shares outstanding - diluted (in shares)	[1]	95.3	95.3	97.1
Employee Stock Option
Weighted Average Number of Shares Outstanding, Diluted, Adjustment [Abstract]
Incremental dilutive common shares (in shares)		0.0	0.0	0.1
Restricted stock units
Weighted Average Number of Shares Outstanding, Diluted, Adjustment [Abstract]
Incremental dilutive common shares (in shares)		0.0		1.5
[1] Due to the net loss during the twelve months ended December 31, 2023 and 2022, the denominator in the diluted earnings per share calculation does not include the effects of the stock awards for which the average market price for the period exceeds the exercised price, as it would result in a less dilutive computation. As a result, diluted earnings per share for the twelve months ended December 31, 2023 and 2022 are the same as basic earnings per share.

X

- Definition

Additional shares included in the calculation of diluted EPS as a result of the potentially dilutive effect of share based payment arrangements using the treasury stock method.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 718
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-Section 45
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The average number of shares or units issued and outstanding that are used in calculating diluted EPS or earnings per unit (EPU), determined based on the timing of issuance of shares or units in the period.

+ References

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Number of [basic] shares or units, after adjustment for contingently issuable shares or units and other shares or units not deemed outstanding, determined by relating the portion of time within a reporting period that common shares or units have been outstanding to the total time in that period.

+ References

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