Consolidated Statements of Operations and Comprehensive Income - USD ($) shares in Millions, $ in Millions	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Revenues
Oil, NGL and Gas Sales	$ 1,173	$ 994
Income from Equity Method Investees and Other	113	42
Total	1,286	1,036
Costs and Expenses
Production Expense	321	303
Exploration Expense	35	42
Depreciation, Depletion and Amortization	468	528
Asset Impairments	168	0
Gain on Divestitures	(588)	0
General and Administrative	104	99
Other Operating Expense, Net	70	29
Total	578	1,001
Operating Income	708	35
Other (Income) Expense
Loss (Gain) on Commodity Derivative Instruments	79	(110)
Interest, Net of Amount Capitalized	73	87
Other Non-Operating Expense (Income), Net	13	(1)
Total	165	(24)
Income Before Income Taxes	543	59
Income Tax (Benefit) Expense	(31)	12
Net Income and Comprehensive Income Including Noncontrolling Interests	574	47
Less: Net Income and Comprehensive Income Attributable to Noncontrolling Interests	20	11
Net Income and Comprehensive Income Attributable to Noble Energy	$ 554	$ 36
Net Income Attributable to Noble Energy per Common Share
Basic ($ per share)	$ 1.14	$ 0.08
Diluted ($ per share)	$ 1.14	$ 0.08
Weighted Average Number of Common Shares Outstanding
Basic (in shares)	487	431
Diluted (in shares)	488	434