Consolidated Statements of Cash Flows - USD ($) $ in Millions		9 Months Ended
		Sep. 30, 2016	Sep. 30, 2015
Repayments of Long-term Lines of Credit		$ 0	$ 74
Cash Flows From Operating Activities
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest		(745)	(413)
Adjustments to Reconcile Net Loss to Net Cash Provided by Operating Activities
Depreciation, Depletion and Amortization		1,859	1,444
Asset Impairments		0	43
Results of Operations, Dry Hole Costs		105	154
Impairment of Leasehold		81	0
Gain on Extinguishment of Debt	[1]	(80)	0
Finalization of Purchase Price Allocation for Rosetta Merger		(25)	0	[2]
Loss on Asset Due to Terminated Contract	[3]	44	0
Deferred Income Tax Benefit		(699)	(244)
Loss (Gain) on Commodity Derivative Instruments		53	(331)
Net Cash Received in Settlement of Commodity Derivative Instruments		454	683
Stock Based Compensation		61	69
Non-cash Pension Termination Expense		0	81
Other Adjustments for Noncash Items Included in Income		92	74
Changes in Operating Assets and Liabilities
(Increase) Decrease in Accounts Receivable		6	370
Decrease in Accounts Payable		(124)	(248)
Increase (Decrease) in Current Income Taxes Payable		82	(118)
Other Current Assets and Liabilities, Net		(72)	(28)
Other Operating Assets and Liabilities, Net		(63)	(50)
Net Cash Provided by Operating Activities		1,054	1,486
Cash Flows From Investing Activities
Additions to Property, Plant and Equipment		(1,164)	(2,519)
Cash Acquired in Rosetta Merger		0	61
Additions to Equity Method Investments		(8)	(86)
Proceeds from Divestitures and Other		786	151
Net Cash Used in Investing Activities		(386)	(2,393)
Cash Flows From Financing Activities
Dividends Paid, Common Stock		(129)	(214)
Proceeds from Term Loan Facility		1,400	0
Repayment of Senior Notes		(1,383)
Repayment of Capital Lease Obligation		(39)	(49)
Other		(25)	(11)
Net Cash Provided by Financing Activities		123	752
Increase (Decrease) in Cash and Cash Equivalents		791	(155)
Cash and Cash Equivalents at Beginning of Period		1,028	1,183
Cash and Cash Equivalents at End of Period		1,819	1,028
Noble Energy, Inc. [Member]
Cash Flows From Financing Activities
Proceeds from Issuance of Noble Energy Common Stock, Net of Offering Costs		0	1,112
Noble Midstream Partners LP [Member]
Cash Flows From Financing Activities
Proceeds from Issuance of Noble Energy Common Stock, Net of Offering Costs			$ 0
Noble Midstream | Noble Midstream Partners LP [Member]
Cash Flows From Financing Activities
Proceeds from Issuance of Noble Energy Common Stock, Net of Offering Costs		$ 299

[1] Amount relates to the tendering of senior notes assumed in the Rosetta Merger. See Note 7. Debt.

[2] Amount relates to an adjustment recorded to the purchase price allocation related to the Rosetta Merger. See Note 5. Rosetta Merger.

[3] Amount relates to the termination of a rig contract offshore Falkland Islands as a result of a supplier's non-performance. See Note 9. Capitalized Exploratory Well Costs and Undeveloped Leasehold Costs and Item 2. Management’s Discussion and Analysis of Financial Condition and Results of Operations - Executive Overview - Exploration Program Update