Consolidated Statements of Cash Flows - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Cash flows from operating activities
Net loss	$ (874,366)	$ (1,130,535)	$ (493,927)
Adjustments to reconcile net loss to net cash flow from operating activities:
Depreciation and amortization	440,221	486,530	547,990
Loss on impairment	615,294	802,133	121,639
(Gain) loss on extinguishment of debt, net	(30,616)	1,793	0
Deferred income taxes	(17,825)	(68,416)	241,326
Amortization of share-based compensation	14,737	23,993	29,115
Other long-term asset write-off	0	0	29,032
Other costs, net	60,259	6,446	12,590
Changes in components of working capital
Change in taxes receivable	(11,225)	84,847	(49,865)
Net changes in other operating assets and liabilities	(9,708)	(34,940)	(21,225)
Net cash provided by operating activities	186,771	171,851	416,675
Cash flows from investing activities
Capital expenditures	(268,783)	(194,779)	(120,707)
Proceeds from disposal of assets	12,753	5,402	2,382
Net cash used in investing activities	(256,030)	(189,377)	(118,325)
Cash flows from financing activities
Issuance of senior notes	0	750,000	0
Borrowings on credit facilities	755,000	0	0
Repayments of credit facilities	(420,000)	0	0
Repayments of senior notes	(400,000)	(972,708)	(300,000)
Debt issuance costs	(1,092)	(15,639)	(42)
Purchase of noncontrolling interests	(106,744)	0	0
Dividends paid to noncontrolling interests	(25,109)	(27,579)	(56,881)
Taxes withheld on employee stock transactions	(2,779)	(3,470)	(4,320)
Net cash used in financing activities	(200,724)	(269,396)	(361,243)
Net increase (decrease) in cash, cash equivalents and restricted cash	(269,983)	(286,922)	(62,893)
Cash, cash equivalents and restricted cash, beginning of period	375,907	662,829	725,722
Cash, cash equivalents and restricted cash, end of period	105,924	375,907	662,829
Noble Corp
Cash flows from operating activities
Net loss	(734,904)	(1,089,970)	(451,732)
Adjustments to reconcile net loss to net cash flow from operating activities:
Depreciation and amortization	437,690	482,660	543,119
Loss on impairment	615,294	802,133	121,639
(Gain) loss on extinguishment of debt, net	(30,616)	1,793	0
Deferred income taxes	(17,825)	(68,416)	241,326
Amortization of share-based compensation	14,689	23,945	29,046
Other long-term asset write-off	0	0	29,030
Other costs, net	(39,741)	6,446	12,591
Changes in components of working capital
Change in taxes receivable	(11,225)	84,847	(49,865)
Net changes in other operating assets and liabilities	(6,456)	(30,679)	(20,080)
Net cash provided by operating activities	226,906	212,759	455,074
Cash flows from investing activities
Capital expenditures	(268,783)	(194,779)	(120,707)
Proceeds from disposal of assets	12,753	5,402	2,382
Net cash used in investing activities	(256,030)	(189,377)	(118,325)
Cash flows from financing activities
Issuance of senior notes	0	750,000	0
Borrowings on credit facilities	755,000	0	0
Repayments of credit facilities	(420,000)	0	0
Repayments of senior notes	(400,000)	(972,708)	(300,000)
Debt issuance costs	(1,092)	(15,639)	(42)
Purchase of noncontrolling interests	(106,744)	0	0
Dividends paid to noncontrolling interests	(25,109)	(27,579)	(56,881)
Contributions (distributions) from (to) parent company, net	(42,103)	(44,417)	28,352
Net cash used in financing activities	(240,048)	(310,343)	(328,571)
Net increase (decrease) in cash, cash equivalents and restricted cash	(269,172)	(286,961)	8,178
Cash, cash equivalents and restricted cash, beginning of period	375,050	662,011	653,833
Cash, cash equivalents and restricted cash, end of period	$ 105,878	$ 375,050	$ 662,011