v2.4.0.6

Segment Disclosures and Related Information - Sales (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012
Segment Reporting Information [Line Items]
Sales and other operating revenues	$ 14,166	$ 14,593
Alaska [Member]
Segment Reporting Information [Line Items]
Sales and other operating revenues	2,104	2,737
Lower 48 and Latin America Before Intersegment Eliminations [Member]
Segment Reporting Information [Line Items]
Sales and other operating revenues	4,822	5,131
Intersegment Eliminations before Lower 48 and Latin America [Member]
Segment Reporting Information [Line Items]
Sales and other operating revenues	(29)	(115)
Lower 48 and Latin America [Member]
Segment Reporting Information [Line Items]
Sales and other operating revenues	4,793	5,016
Canada before Intersegment Eliminations [Member]
Segment Reporting Information [Line Items]
Sales and other operating revenues	1,255	1,218
Intersegment Eliminations before Canada [Member]
Segment Reporting Information [Line Items]
Sales and other operating revenues	(158)	(136)
Canada [Member]
Segment Reporting Information [Line Items]
Sales and other operating revenues	1,097	1,082
Europe before Intersegment Eliminations [Member]
Segment Reporting Information [Line Items]
Sales and other operating revenues	3,453	3,602
Intersegment Eliminations before Europe [Member]
Segment Reporting Information [Line Items]
Sales and other operating revenues		(72)
Europe [Member]
Segment Reporting Information [Line Items]
Sales and other operating revenues	3,453	3,530
Asia Pacific Before Intersegment Eliminations [Member]
Segment Reporting Information [Line Items]
Sales and other operating revenues	2,218	1,896
Other International [Member]
Segment Reporting Information [Line Items]
Sales and other operating revenues	483	310
Corporate and Other [Member]
Segment Reporting Information [Line Items]
Sales and other operating revenues	$ 18	$ 22

X

- Definition

Total revenue from sale of goods and services rendered during the reporting period, in the normal course of business, reduced by sales returns and allowances, and sales discounts.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 225

-SubTopic 10

-Section S99

-Paragraph 2

-Subparagraph (SX 210.5-03.1)

-URI http://asc.fasb.org/extlink&oid=6880815&loc=d3e20235-122688



Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 03

-Paragraph 1

-Article 5

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

X

- Details

Name:	us-gaap_SegmentReportingInformationLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration