Acquisitions and Divestitures - Additional Information - 2015 Activity - Leasehold Acquisitions (Detail) (North America [Member], USD $) In Millions, unless otherwise specified	3 Months Ended
Mar. 31, 2015	Mar. 31, 2014
North America [Member]
Business Acquisition [Line Items]
Leasehold acquisition	$ 92	$ 44

The cost and expenses associated with acquiring Joint Venture Properties, including property rentals, lease bonuses and equipment costs associated therewith and other capitalized costs relating to the business operations of the Offeror, title insurance and title examination costs, brokers' and finders' fees, filing fees and recording costs, taxes (including ad valorem taxes), engineering, land, legal, geological, geophysical, nominee seismic, drafting and accounting and audit costs and any other costs or expenses incurred in connection with acquisition of Joint Venture Properties.

No definition available.

Name:	apa_LeaseholdAcquisitionCost
Namespace Prefix:	apa_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration