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Pay vs Performance Disclosure - USD ($) $ in Millions	4 Months Ended	8 Months Ended	12 Months Ended
	Apr. 30, 2021	Dec. 31, 2021	Dec. 31, 2023	Dec. 31, 2022
Pay vs Performance Disclosure
NET LOSS ATTRIBUTABLE TO VALARIS	$ (4,467.0)	$ (27.4)	$ 865.4	$ 176.5

X

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- Definition

The portion of profit or loss for the period, net of income taxes, which is attributable to the parent.

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