v2.4.0.6

Retirement Plans (Tables)

12 Months Ended

Dec. 31, 2011

Dec. 31, 2010

Schedule Of Changes In Defined Benefit Plan Obligations

	Pension Benefits		Postretirement Benefits
	2011	2010	2011	2010
	(In millions)
Change in benefit obligation:
Benefit obligation at beginning of year	$ 1,124	$    980	$       43	$       64
Service cost	37	33	1	1
Interest cost	60	58	2	3
Actuarial loss (gain)	123	82	(8)	1
Plan amendments	—	5	5	(22)
Plan settlements	—	—	(4)	—
Foreign exchange rate changes	(1)	2	—	—
Participant contributions	—	—	3	2
Benefits paid	(40)	(36)	(5)	(6)
Benefit obligation at end of year	1,303	1,124	37	43
Change in plan assets:
Fair value of plan assets at beginning of year	632	532	—	—
Actual return on plan assets	141	69	—	—
Employer contributions	454	66	7	4
Participant contributions	—	—	3	2
Plan settlements	—	—	(5)	—
Benefits paid	(40)	(36)	(5)	(6)
Foreign exchange rate changes	—	1	—	—
Fair value of plan assets at end of year	1,187	632	—	—
Funded status at end of year	$   (116)	$   (492)	$     (37)	$     (43)
Amounts recognized in balance sheet:
Noncurrent assets	$    116	$         2	$       —	$       —
Current liabilities	(10)	(9)	(3)	(4)
Noncurrent liabilities	(222)	(485)	(34)	(39)
Net amount	$   (116)	$   (492)	$     (37)	$     (43)
Amounts recognized in accumulated other   comprehensive earnings:
Net actuarial loss (gain)	$    348	$    357	$        (9)	$        (5)
Prior service cost (credit)	18	21	(5)	(12)
Total	$    366	$    378	$     (14)	$     (17)

Schedule Of Pension Plans With Projected And Accumulated Benefit Obligations In Excess Of Plan Assets

	December 31,
	2011	2010
	(In millions)
Projected benefit obligation	$      232	$   1,110
Accumulated benefit obligation	$      189	$      996
Fair value of plan assets	$         —	$      616

Schedule Of Components Of Net Periodic Benefit Cost And Other Comprehensive Income For Defined Benefit Plans

	Pension Benefits			Postretirement Benefits
	2011	2010	2009	2011	2010	2009
	(In millions)
Net periodic benefit cost:
Service cost	$       37	$        33	$       43	$          1	$        1	$         1
Interest cost	60	58	58	2	3	3
Expected return on plan assets	(42)	(36)	(35)	—	—	—
Curtailment and settlement expense	—	—	5	(3)	—	—
Recognition of net actuarial loss (gain)	32	27	45	—	—	(1)
Recognition of prior service cost	3	3	3	(2)	1	2
Total net periodic benefit cost	90	85	119	(2)	5	5
Other comprehensive earnings:
Actuarial loss (gain) arising in current year	23	50	(66)	(7)	1	7
Prior service cost (credit) arising in current year.	—	4	—	5	(22)	—
Recognition of net actuarial loss, including     settlement expense, in net periodic benefit cost	(32)	(27)	(45)	3	—	1
Recognition of prior service cost, including     curtailment, in net periodic benefit cost	(3)	(3)	(8)	2	(1)	(2)
Total other comprehensive (loss) earnings	(12)	24	(119)	3	(22)	6
Total recognized	$       78	$      109	$       —	$          1	$     (17)	$       11

Schedule Of Estimated Net Actuarial Loss And Prior Service Cost For Pension And Other Postretirement Plans To Be Amortized

	Pension Benefits	Postretirement      Benefits
	(In millions)
Net actuarial loss (gain)	$       24	$                (1)
Prior service cost (credit)	3	(1)
Total	$       27	$                (2)

Schedule Of Weighted-Average Assumptions Used To Determine Benefit Obligations And Net Periodic Pension Costs

	Pension Benefits			Postretirement Benefits
	2011	2010	2009	2011	2010	2009
Assumptions to determine benefit obligations:
Discount rate	4.65%	5.50%	6.00%	4.25%	4.90%	5.70%
Rate of compensation increase	4.97%	6.94%	6.95%	N/A	N/A	N/A
Assumptions to determine net periodic benefit cost:
Discount rate	5.50%	6.00%	6.00%	4.90%	5.70%	6.00%
Expected return on plan assets	6.48%	6.94%	7.18%	N/A	N/A	N/A
Rate of compensation increase	6.94%	6.95%	6.95%	N/A	N/A	N/A

Schedule Of Fair Value Of Pension Assets

	As of December 31, 2011
			Fair Value Measurements Using:
	Actual Allocation	Total	Level 1 Inputs	Level 2 Inputs	Level 3 Inputs
	($ In millions)
Fixed-income securities:
U.S. Treasury obligations	43.9%	$           522	$              27	$           495	$              —
Corporate bonds	24.8%	294	265	29	—
Other bonds	3.1%	36	36	—	—
Total fixed-income securities	71.8%	852	328	524	—
Equity securities:
Global (large, mid, small cap)	18.0%	214	—	214	—
Other securities:
Hedge fund & alternative investments.	8.9%	106	16	—	90
Short-term investment funds	1.3%	15	—	15	—
Total other securities	10.2%	121	16	15	90
Total investments	100.0%	$        1,187	$           344	$           753	$              90

	As of December 31, 2010
			Fair Value Measurements Using:
	Actual Allocation	Total	Level 1 Inputs	Level 2 Inputs	Level 3 Inputs
	($ In millions)
Equity securities:
U.S. large cap	22.3%	$           141	$              —	$           141	$              —
U.S. small cap	14.1%	89	89	—	—
International large cap	14.4%	91	50	41	—
Total equity securities	50.8%	321	139	182	—
Fixed-income securities:
Corporate bonds	22.0%	139	139	—	—
U.S. Treasury obligations	10.9%	69	69	—	—
Other bonds	4.6%	29	29	—	—
Total fixed-income securities	37.5%	237	237	—	—
Other securities:
Hedge funds	9.2%	58	—	—	58
Short-term investment funds	2.5%	16	—	16	—
Total other securities	11.7%	74	—	16	58
Total investments	100.0%	$           632	$           376	$           198	$              58

Schedule Of Changes To Level 3 Plan Assets

December 31, 2009	$               51
Purchases	3
Investment returns	4
December 31, 2010	58
Purchases	33
Investment returns	(1)
December 31, 2011	$               90

Schedule Of Expected Cash Flow Information For Pension And Other Postretirement Benefit Plans

	Pension Benefits	Postretirement Benefits
	(In millions)
Devon's 2012 contributions	$           9	$                 3
Benefit payments:
2012	$         44	$                 3
2013	$         49	$                 3
2014	$         52	$                 3
2015	$         56	$                 3
2016	$         61	$                 3
2017 to 2021	$       390	$               14

Schedule Of Expense Related To These Defined Contribution Plans

	Year Ended December 31,
	2011	2010	2009
	(In millions)
401(k) and enhanced contribution plans	$     33	$     32	$     34
Canadian pension and savings plans	21	17	15
Total	$     54	$     49	$     49

Target Allocation [Member]

Schedule Of Fair Value Of Pension Assets

	December 31,
	2011	2010
Fixed income	70%	40%
Equity	20%	47.5%
Other	10%	12.5%

X

- Definition

Tabular disclosure of accumulated benefit obligations and fair values of plan assets of pension plans and/or other employee benefit plans where the accumulated benefit obligation exceeds the fair value of plan assets.

+ References

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

-Topic 715

-SubTopic 20

-Publisher FASB

-Number

-Article

-Subparagraph (b)

-Name Accounting Standards Codification

-Paragraph 3

-Section 50

-URI http://asc.fasb.org/extlink&oid=6962843&loc=d3e2417-114920

+ Details

Name:	us-gaap_ScheduleOfAccumulatedBenefitObligationsInExcessOfFairValueOfPlanAssetsTableTextBlock
Namespace Prefix:	us-gaap_
Data Type:	nonnum:textBlockItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Tabular disclosure of the major categories of plan assets of pension plans and/or other employee benefit plans. This information may include, but is not limited to, the target allocation of plan assets, the fair value of each major category of plan assets, and the level within the fair value hierarchy in which the fair value measurements fall.

+ References

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

-Topic 715

-SubTopic 20

-Publisher FASB

-Number

-Article

-Subparagraph (d)(5)

-Name Accounting Standards Codification

-Paragraph 1

-Section 50

-URI http://asc.fasb.org/extlink&oid=6962843&loc=d3e1928-114920

+ Details

Name:	us-gaap_ScheduleOfAllocationOfPlanAssetsTableTextBlock
Namespace Prefix:	us-gaap_
Data Type:	nonnum:textBlockItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Tabular disclosure of the amounts related to pension plans and/or other employee benefit plans in accumulated other comprehensive income (loss) expected to be recognized as components of net periodic benefit cost over the next fiscal year, including the net gain (loss), net prior service cost or credit, and net transition asset or obligation.

+ References

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

-Topic 715

-SubTopic 20

-Publisher FASB

-Subparagraph (s)

-Name Accounting Standards Codification

-Paragraph 1

-Section 50

-URI http://asc.fasb.org/extlink&oid=6962843&loc=d3e1928-114920

+ Details

Name:	us-gaap_ScheduleOfAmountsInAccumulatedOtherComprehensiveIncomeLossToBeRecognizedOverNextFiscalYearTableTextBlock
Namespace Prefix:	us-gaap_
Data Type:	nonnum:textBlockItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Tabular disclosure of the assumptions used to determine for pension plans and/or other employee benefit plans the benefit obligation and net benefit cost, including assumed discount rates, rate increase in compensation increase, and expected long-term rates of return on plan assets.

+ References

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

-Topic 715

-SubTopic 20

-Publisher FASB

-Number

-Article

-Subparagraph (k)

-Name Accounting Standards Codification

-Paragraph 1

-Section 50

-URI http://asc.fasb.org/extlink&oid=6962843&loc=d3e1928-114920

+ Details

Name:	us-gaap_ScheduleOfAssumptionsUsedTableTextBlock
Namespace Prefix:	us-gaap_
Data Type:	nonnum:textBlockItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Tabular disclosure of the change in the benefit obligation of pension plans and/or other employee benefit plans from the beginning to the end of the period, showing separately, if applicable, the effects of the following: service cost, interest cost, contributions by plan participants, actuarial gains and losses, foreign currency exchange rate changes, benefits paid, plan amendments, business combinations, divestitures, curtailments, settlements, and special and contractual termination benefits.

+ References

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

-Topic 715

-SubTopic 20

-Publisher FASB

-Number

-Article

-Subparagraph (a)

-Name Accounting Standards Codification

-Paragraph 1

-Section 50

-URI http://asc.fasb.org/extlink&oid=6962843&loc=d3e1928-114920

+ Details

Name:	us-gaap_ScheduleOfChangesInProjectedBenefitObligationsTableTextBlock
Namespace Prefix:	us-gaap_
Data Type:	nonnum:textBlockItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Tabular disclosure of the costs related to the various types of retirement plans including defined benefit pension plan cost, defined contribution plan cost, other postretirement benefit plan cost, and net periodic benefit cost.

+ References

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

-Topic 715

-SubTopic 20

-Publisher FASB

-Number

-Article

-Subparagraph

-Name Accounting Standards Codification

-Paragraph 1

-Section 50

-URI http://asc.fasb.org/extlink&oid=6962843&loc=d3e1928-114920

+ Details

Name:	us-gaap_ScheduleOfCostsOfRetirementPlansTableTextBlock
Namespace Prefix:	us-gaap_
Data Type:	nonnum:textBlockItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Tabular disclosure of the effect of fair value measurements using significant unobservable inputs (Level 3) on changes in plan assets of pension plans and/or other employee benefit plans for the period.

+ References

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

-Topic 715

-SubTopic 20

-Publisher FASB

-Number

-Article

-Subparagraph (d)(4)

-Name Accounting Standards Codification

-Paragraph 1

-Section 50

-URI http://asc.fasb.org/extlink&oid=6962843&loc=d3e1928-114920

+ Details

Name:	us-gaap_ScheduleOfEffectOfSignificantUnobservableInputsChangesInPlanAssetsTableTextBlock
Namespace Prefix:	us-gaap_
Data Type:	nonnum:textBlockItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Tabular disclosure of benefits expected to be paid by pension plans and/or other employee benefit plans in each of the next five fiscal years and in the aggregate for the five fiscal years thereafter.

+ References

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

-Topic 715

-SubTopic 20

-Publisher FASB

-Number

-Article

-Subparagraph (f)

-Name Accounting Standards Codification

-Paragraph 1

-Section 50

-URI http://asc.fasb.org/extlink&oid=6962843&loc=d3e1928-114920

+ Details

Name:	us-gaap_ScheduleOfExpectedBenefitPaymentsTableTextBlock
Namespace Prefix:	us-gaap_
Data Type:	nonnum:textBlockItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Tabular disclosure of the components of net benefit costs for pension plans and/or other employee benefit plans including service cost, interest cost, expected return on plan assets, gain (loss), prior service cost or credit, transition asset or obligation, and gain (loss) recognized due to settlements or curtailments.

+ References

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

-Topic 715

-SubTopic 20

-Publisher FASB

-Number

-Article

-Subparagraph (h)

-Name Accounting Standards Codification

-Paragraph 1

-Section 50

-URI http://asc.fasb.org/extlink&oid=6962843&loc=d3e1928-114920

+ Details

Name:	us-gaap_ScheduleOfNetBenefitCostsTableTextBlock
Namespace Prefix:	us-gaap_
Data Type:	nonnum:textBlockItemType
Balance Type:	na
Period Type:	duration