Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016
Cash flows from operating activities
Net income (loss)	$ (381,467)	$ 469,532
Adjustments to reconcile net income to net cash flow from operating activities:
Depreciation and amortization	272,312	300,665
Loss on impairment	0	16,616
Gain on extinguishment of debt, net	0	(11,066)
Deferred income taxes	303,084	(100,408)
Amortization of share-based compensation	15,187	19,565
Other long-term asset write-off	14,419	0
Net change in other assets and liabilities	30,750	164,319
Net cash provided by operating activities	254,285	859,223
Cash flows from investing activities
Capital expenditures	(48,957)	(120,531)
Change in accrued capital expenditures	(18,651)	(38,378)
Proceeds from disposal of assets	314	21,190
Net cash used in investing activities	(67,294)	(137,719)
Cash flows from financing activities
Repayments of debt	(300,000)	(322,207)
Debt issuance costs on senior notes and credit facility	(42)	0
Premiums paid on early repayment of long-term debt	0	(1,781)
Dividend payments	0	(42,542)
Dividends paid to noncontrolling interests	(5,393)	(41,088)
Employee stock transactions	(4,301)	(3,153)
Net cash used in financing activities	(309,736)	(410,771)
Net increase (decrease) in cash and cash equivalents	(122,745)	310,733
Cash and cash equivalents, beginning of period	725,722	512,245
Cash and cash equivalents, end of period	602,977	822,978
Noble Corp [Member]
Cash flows from operating activities
Net income (loss)	(361,943)	489,050
Adjustments to reconcile net income to net cash flow from operating activities:
Depreciation and amortization	270,351	300,611
Loss on impairment	0	16,616
Gain on extinguishment of debt, net	0	(11,066)
Deferred income taxes	303,084	(100,408)
Capital contribution by parent - share-based compensation	15,154	17,653
Other long-term asset write-off	14,419	0
Net change in other assets and liabilities	28,304	166,837
Net cash provided by operating activities	269,369	879,293
Cash flows from investing activities
Capital expenditures	(48,957)	(120,531)
Change in accrued capital expenditures	(18,651)	(38,378)
Proceeds from disposal of assets	314	21,190
Net cash used in investing activities	(67,294)	(137,719)
Cash flows from financing activities
Repayments of debt	(300,000)	(322,207)
Debt issuance costs on senior notes and credit facility	(42)	0
Premiums paid on early repayment of long-term debt	0	(1,781)
Dividends paid to noncontrolling interests	(5,393)	(41,088)
Contributions (distributions) from (to) parent company, net	51,705
Contributions (distributions) from (to) parent company, net		(65,316)
Net cash used in financing activities	(253,730)	(430,392)
Net increase (decrease) in cash and cash equivalents	(51,655)	311,182
Cash and cash equivalents, beginning of period	653,833	511,795
Cash and cash equivalents, end of period	$ 602,178	$ 822,977