Business Segments - Additional Information (Details)	9 Months Ended
Sep. 30, 2016 reportable_segments
Segment Reporting Information [Line Items]
Number of reportable segments	4
DCP Midstream, LLC
Segment Reporting Information [Line Items]
Percentage of ownership interests	50.00%
DCP Midstream, LLC \| Phillips Sixty Six
Segment Reporting Information [Line Items]
Percentage of ownership interests	50.00%
DCP Midstream Partners, LP \| DCP Midstream, LLC
Segment Reporting Information [Line Items]
Noncontrolling Interest, Ownership Percentage by Parent	21.00%

The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 323
-SubTopic 10
-Section 50
-Paragraph 3
-Subparagraph (a)(1)
-URI http://asc.fasb.org/extlink&oid=66011266&loc=d3e33918-111571

+ Details

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- Definition

The parent entity's interest in net assets of the subsidiary, expressed as a percentage.

+ References

No definition available.

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- Definition

Number of segments reported by the entity. A reportable segment is a component of an entity for which there is an accounting requirement to report separate financial information on that component in the entity's financial statements.

+ References

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

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- Details

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- Details

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- Details

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