Outstanding and Weighted Average Common Shares - Basic and Diluted Earnings Per Share (Detail) (USD $) In Millions, except Per Share data, unless otherwise specified	12 Months Ended
Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Earnings Per Share [Abstract]
Income from continuing operations, net of income taxes	$ 1,692	$ 4,036	$ 1,808
Less: Net income attributable to noncontrolling interests		176	18
Net income from continuing operations attributable to Hess Corporation	1,692	3,860	1,790
Income (loss) from discontinued operations, net of income taxes	682	1,186	255
Less: Net income (loss) attributable to noncontrolling interests	57	(6)	20
Income from discontinued operations, net of income taxes	625	1,192	235
NET INCOME ATTRIBUTABLE TO HESS CORPORATION	$ 2,317us-gaap_NetIncomeLoss	$ 5,052us-gaap_NetIncomeLoss	$ 2,025us-gaap_NetIncomeLoss
Weighted average common shares outstanding:
Basic	303.7	336.6	338.4
Effect of dilutive securities
Restricted common stock	1.5	1.4	1.1
Stock options	1.8	1.7	0.8
Performance share units	0.7	1.2
Diluted	307.7	340.9	340.3
Basic:
Continuing operations	$ 5.57	$ 11.47	$ 5.29
Discontinued operations	$ 2.06	$ 3.54	$ 0.69
NET INCOME PER SHARE	$ 7.63us-gaap_EarningsPerShareBasic	$ 15.01us-gaap_EarningsPerShareBasic	$ 5.98us-gaap_EarningsPerShareBasic
Diluted:
Continuing operations	$ 5.50	$ 11.33	$ 5.26
Discontinued operations	$ 2.03	$ 3.49	$ 0.69
NET INCOME PER SHARE	$ 7.53us-gaap_EarningsPerShareDiluted	$ 14.82us-gaap_EarningsPerShareDiluted	$ 5.95us-gaap_EarningsPerShareDiluted

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The amount of net income (loss) for the period per each share of common stock or unit outstanding during the reporting period.

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The amount of net income (loss) for the period available to each share of common stock or common unit outstanding during the reporting period and to each share or unit that would have been outstanding assuming the issuance of common shares or units for all dilutive potential common shares or units outstanding during the reporting period.

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Amount of income (loss) from continuing operations attributable to the parent. Also defined as revenue less expenses and taxes from ongoing operations before extraordinary items but after deduction of those portions of income or loss from continuing operations that are allocable to noncontrolling interests.

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Amount of income (loss) from a disposal group, net of income tax before extraordinary items allocable to noncontrolling interests. Includes, net of tax, income (loss) from operations during the phase-out period, gain (loss) on disposal, provision (or any reversals of earlier provisions) for loss on disposal, and adjustments of a prior period gain (loss) on disposal.

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Per basic share amount, after tax, of income (loss) from the day-to-day business activities of the discontinued operation and gain (loss) from the disposal of the discontinued operation.

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Additional shares included in the calculation of diluted EPS as a result of the potentially dilutive effect of call options and warrants using the treasury stock method.

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Additional shares included in the calculation of diluted EPS as a result of the potentially dilutive effect of contingently issuable shares. Contingently issuable shares are those shares that are issuable for little or no cash contingent on certain conditions being met.

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