Loss Per Share - Additional Information (Details) - $ / shares	3 Months Ended
Mar. 31, 2020	Mar. 31, 2019	Dec. 31, 2019
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Shares outstanding and trading (in shares)	250,952,000		249,200,000
Additional shares authorized for issuance	83,100,000
Current nominal value per share (usd per share)	$ 0.01		$ 0.01
Number of shares allotted	0
Number of shares repurchased	0
Noble-UK
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Shares outstanding and trading (in shares)	251,000,000.0		249,200,000
Equity option
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Shares excluded from the diluted net income per share	12,400,000	13,200,000

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