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Amount of benefits expected to be paid in the five fiscal years after the fifth fiscal year following the latest fiscal year from a defined benefit plan.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 715

-SubTopic 20

-Section 50

-Paragraph 1

-Subparagraph (f)

-URI http://asc.fasb.org/extlink&oid=28361610&loc=d3e1928-114920

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Amount of benefits expected to be paid in the next fiscal year following the latest fiscal year from a defined benefit plan.

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Amount of benefits expected to be paid in the fifth fiscal year following the latest fiscal year from a defined benefit plan.

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Amount of benefits expected to be paid in the fourth fiscal year following the latest fiscal year from a defined benefit plan.

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Amount of benefits expected to be paid in the third fiscal year following the latest fiscal year from a defined benefit plan.

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Amount of benefits expected to be paid in the second fiscal year following the latest fiscal year from a defined benefit plan.

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- Definition

Amount of employer's best estimate of contributions expected to be paid to the plan during the next fiscal year beginning after the date of the latest statement of financial position.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 715

-SubTopic 20

-Section 50

-Paragraph 1

-Subparagraph (g)

-URI http://asc.fasb.org/extlink&oid=28361610&loc=d3e1928-114920

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The amount of the cost recognized during the period for defined contribution plans.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 715

-SubTopic 70

-Section 50

-Paragraph 1

-URI http://asc.fasb.org/extlink&oid=6414718&loc=d3e28014-114942

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Defined Benefit Non Qualified Pension Plan Expected Future Employer Contributions In Next Fiscal Year

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Defined Benefit Tax Qualified Pension Plan Expected Future Employer Contributions In Next Fiscal Year

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Defined contribution plan matching contributions included in income (loss) from discontinued operations related to WPX employees.

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No definition available.

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EBP Benefit Pymts & Defined Contribution Plans (Details 6) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Expected benefit payments
Employer's contributions charged to expense under defined contribution plans	$ 27	$ 25	$ 28
Defined contribution plan matching contributions included in income (loss) from discontinued operations related to WPX employees			5
Other Postretirement Benefits [Member]
Expected benefit payments
2014	15
2015	15
2016	16
2017	16
2018	17
2019-2023	74
Expected total plans contribution, approximate	8
Pension Benefits [Member]
Expected benefit payments
2014	88
2015	96
2016	102
2017	103
2018	109
2019-2023	591
Expected tax-qualified pension plans contribution, approximate	60
Expected nonqualified pension plans contribution, approximate	3
Expected total plans contribution, approximate	$ 63