INCOME TAXES	9 Months Ended
Sep. 30, 2018
Income Tax Disclosure [Abstract]
INCOME TAXES	INCOME TAXES The Company estimates its annual effective income tax rate in recording its quarterly provision for income taxes in the various jurisdictions in which the Company operates. Non-cash impairments of the carrying value of the Company’s oil and gas properties, gains and losses on the sale of assets, statutory tax rate changes, and other significant or unusual items are recognized as discrete items in the quarter in which they occur. During the third quarter of 2018, Apache’s effective income tax rate was primarily impacted by an increase in the amount of valuation allowance against its U.S. deferred tax assets. During the third quarter of 2017, Apache’s effective income tax rate was primarily impacted by gains on the sale of oil and gas properties, a $30 million current tax benefit associated with U.S. federal income tax credits, a deferred tax asset associated with its realizable capital loss on the sale of ACL, and a decrease in the Company’s deferred tax liability associated with its investment in foreign subsidiaries. For more information regarding the sale of ACL, please refer to Note 2—Acquisitions and Divestitures. Apache’s 2018 year-to-date effective income tax rate was primarily impacted by an increase in the amount of valuation allowance against its U.S. deferred tax assets. Apache’s 2017 year-to-date effective income tax rate was primarily impacted by the decrease in deferred taxes associated with its investments in foreign subsidiaries, gains on the sale of oil and gas properties, non-cash impairments of the Company’s PRT decommissioning asset, the current tax benefit associated with U.S. federal income tax credits, and the sale of ACL. On December 22, 2017, the Tax Cuts and Jobs Act (the Act) was signed into law. In 2018, the Internal Revenue Service (IRS) issued additional guidance related to the Act’s deemed repatriation of foreign earnings (i.e., transition inclusion). In light of this new guidance, the Company continues to reevaluate the tax impact of the transition inclusion in 2017. Tax benefit associated with the change in transition inclusion is likely to be fully offset by a change in the Company’s valuation allowance against its U.S. deferred tax assets. The Company has not revised any other 2017 provisional estimates under Staff Accounting Bulletin No. 118, but is continuing to gather information and awaits further guidance from the IRS, SEC and FASB on the Act. Apache and its subsidiaries are subject to U.S. federal income tax as well as income or capital taxes in various state and foreign jurisdictions. The Company’s tax reserves are related to tax years that may be subject to examination by the relevant taxing authority. The Company is currently under IRS audit for the 2014-2016 tax years and is also under audit in various states and foreign jurisdictions as part of its normal course of business.

INCOME TAXES

The Company estimates its annual effective income tax rate in recording its quarterly provision for income taxes in the various jurisdictions in which the Company operates. Non-cash impairments of the carrying value of the Company’s oil and gas properties, gains and losses on the sale of assets, statutory tax rate changes, and other significant or unusual items are recognized as discrete items in the quarter in which they occur.

During the third quarter of 2018, Apache’s effective income tax rate was primarily impacted by an increase in the amount of valuation allowance against its U.S. deferred tax assets. During the third quarter of 2017, Apache’s effective income tax rate was primarily impacted by gains on the sale of oil and gas properties, a $30 million current tax benefit associated with U.S. federal income tax credits, a deferred tax asset associated with its realizable capital loss on the sale of ACL, and a decrease in the Company’s deferred tax liability associated with its investment in foreign subsidiaries. For more information regarding the sale of ACL, please refer to Note 2—Acquisitions and Divestitures.

Apache’s 2018 year-to-date effective income tax rate was primarily impacted by an increase in the amount of valuation allowance against its U.S. deferred tax assets. Apache’s 2017 year-to-date effective income tax rate was primarily impacted by the decrease in deferred taxes associated with its investments in foreign subsidiaries, gains on the sale of oil and gas properties, non-cash impairments of the Company’s PRT decommissioning asset, the current tax benefit associated with U.S. federal income tax credits, and the sale of ACL.

On December 22, 2017, the Tax Cuts and Jobs Act (the Act) was signed into law. In 2018, the Internal Revenue Service (IRS) issued additional guidance related to the Act’s deemed repatriation of foreign earnings (i.e., transition inclusion). In light of this new guidance, the Company continues to reevaluate the tax impact of the transition inclusion in 2017. Tax benefit associated with the change in transition inclusion is likely to be fully offset by a change in the Company’s valuation allowance against its U.S. deferred tax assets. The Company has not revised any other 2017 provisional estimates under Staff Accounting Bulletin No. 118, but is continuing to gather information and awaits further guidance from the IRS, SEC and FASB on the Act.

Apache and its subsidiaries are subject to U.S. federal income tax as well as income or capital taxes in various state and foreign jurisdictions. The Company’s tax reserves are related to tax years that may be subject to examination by the relevant taxing authority. The Company is currently under IRS audit for the 2014-2016 tax years and is also under audit in various states and foreign jurisdictions as part of its normal course of business.