Acquisitions and Divestitures - Allocation of Purchase Price: Maersk Drilling (Details) - USD ($) $ in Thousands			1 Months Ended	11 Months Ended	12 Months Ended
	Oct. 03, 2022	Apr. 15, 2021	Feb. 05, 2021	Dec. 31, 2021	Dec. 31, 2022	Dec. 31, 2020
Liabilities assumed:
Goodwill acquired				$ 0	$ 26,016
Gain on bargain purchase			$ 0	62,305	$ 0	$ 0
Maersk Drilling Merger
Business Acquisition [Line Items]
Fair value of Noble shares transferred to legacy Maersk shareholders	$ 1,793,351
Cash paid to legacy Maersk shareholders	887
Fair value of replacement Maersk Drilling RSU Awards attributable to the purchase price	6,780
Deal Completion Bonus	6,177
Fair Value of Compulsory Purchase	193,678
Total purchase price consideration	2,000,873
Assets acquired:
Cash and cash equivalents	172,205
Accounts receivable	250,251
Taxes receivable	20,603
Prepaid expenses and other current assets	41,068
Total current assets	484,127
Intangible assets	22,991
Property and equipment, net	2,756,096
Other assets	69,713
Total assets acquired	3,332,927
Liabilities assumed:
Current maturities of long-term debt	129,130
Accounts payable	130,273
Accrued payroll and related costs	21,784
Taxes payable	38,218
Interest payable	800
Other current liabilities	41,253
Total current liabilities	361,458
Long-term debt	596,692
Deferred income taxes	4,071
Noncurrent contract liabilities	237,703
Other liabilities	158,146
Total liabilities assumed	1,358,070
Net assets acquired	1,974,857
Goodwill acquired	26,016
Purchase price consideration	$ 2,000,873
Pacific Drilling
Business Acquisition [Line Items]
Total purchase price consideration		$ 357,662
Assets acquired:
Cash and cash equivalents		54,970
Accounts receivable		17,457
Taxes receivable		1,585
Prepaid expenses and other current assets		14,081
Total current assets		88,093
Property and equipment, net		346,167
Other assets		457
Total assets acquired		464,780
Liabilities assumed:
Accounts payable		18,603
Accrued payroll and related costs		16,128
Taxes payable		1,951
Other current liabilities		2,900
Total current liabilities		39,582
Deferred income taxes		798
Other liabilities		4,433
Total liabilities assumed		44,813
Net assets acquired		419,967
Gain on bargain purchase		$ 62,305		$ 62,300