Consolidated Statements of Operations and Comprehensive Loss - USD ($) shares in Millions, $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Revenues
Oil, NGL and Gas Sales	$ 907	$ 882	$ 2,918	$ 2,411
Income from Equity Method Investees and Other	53	28	137	70
Total	960	910	3,055	2,481
Costs and Expenses
Production Expense	280	282	866	839
Exploration Expense	64	125	136	376
Depreciation, Depletion and Amortization	523	621	1,554	1,859
Loss on Marcellus Shale Upstream Divestiture	4	0	2,326	0
General and Administrative	102	95	304	293
Other Operating (Income) Expense, Net	(15)	37	132	127
Total	958	1,160	5,318	3,494
Operating Income (Loss)	2	(250)	(2,263)	(1,013)
Other Expense
Loss (Gain) on Commodity Derivative Instruments	22	(55)	(145)	53
Loss (Gain) on Extinguishment of Debt	98	0	98	(80)
Interest, Net of Amount Capitalized	88	86	271	242
Other Non-Operating Expense (Income), Net	2	(1)	(4)	3
Total	210	30	220	218
Loss Before Income Taxes	(208)	(280)	(2,483)	(1,231)
Income Tax Benefit	(93)	(137)	(917)	(486)
Net Loss and Comprehensive Loss Including Noncontrolling Interests	(115)	(143)	(1,566)	(745)
Less: Net Income and Comprehensive Income Attributable to Noncontrolling Interests	21	1	46	1
Net Loss and Comprehensive Loss Attributable to Noble Energy	$ (136)	$ (144)	$ (1,612)	$ (746)
Net Loss Attributable to Noble Energy per Common Share - Basic and Diluted ($ per share)	$ (0.28)	$ (0.33)	$ (3.47)	$ (1.73)
Weighted Average Number of Common Shares Outstanding
Basic and Diluted (in shares)	487	430	464	430