Commitments and Contingencies (Details)		1 Months Ended	3 Months Ended
	Dec. 15, 2017 USD ($)	Jan. 31, 2017 USD ($) rig	Mar. 31, 2020 USD ($)	Mar. 31, 2019 USD ($)	Dec. 31, 2019 USD ($)
Other Commitments [Line Items]
Net loss from discontinued operations, net of tax			$ 0	$ (3,821,000)
Years of effectiveness of employment agreements after the termination of employment			3 years
Minimum
Other Commitments [Line Items]
Approximate audit claims assessed			$ 80,000,000.0
Percentage of uncertain tax positions likelihood of being sustained (greater than)			50.00%
Income and other business taxes | Mexico | Foreign tax authority
Other Commitments [Line Items]
Approximate audit claims assessed			$ 60,500,000
Transocean Ltd.
Other Commitments [Line Items]
Number of newbuild rigs allegedly violating patents | rig		5
Damages sought		$ 10,000,000.0
License fees (percent)		5.00%
Borrowings by Paragon Offshore
Other Commitments [Line Items]
Damages sought	$ 1,700,000,000
Loss estimate					$ 100,000,000.0
Coverage limit			150,000,000.0
Borrowings by Paragon Offshore | Mexico
Other Commitments [Line Items]
Net loss from discontinued operations, net of tax				$ 3,800,000
Transfer of Intercompany Receivables and Notes from a Paragon Subsidiary to a Noble Subsidiary
Other Commitments [Line Items]
Damages sought	$ 935,000,000
Paragon Offshore
Other Commitments [Line Items]
Damages sought			$ 2,600,000,000