INVESTMENTS IN UNCONSOLIDATED ENTITIES	3 Months Ended
Sep. 30, 2012
Notes to Consolidated Financial Statements [Abstract]
Investments in Unconsolidated Entities	NOTE 4. INVESTMENTS IN UNCONSOLIDATED ENTITIES We provide additional information concerning all of our equity method investments in Note 4 of the Notes to Consolidated Financial Statements in the Updated Annual Report. Sempra Renewables For the nine months ended September 30, 2012, Sempra Renewables invested $296 million in its renewable wind generation joint ventures, of which $249 million was invested in the Flat Ridge 2 Wind Farm project. Sempra Natural Gas Sempra Natural Gas owns a 25-percent interest in Rockies Express Pipeline LLC (Rockies Express), a partnership that operates a natural gas pipeline, the Rockies Express Pipeline (REX), that links producing areas in the Rocky Mountains region to the upper Midwest and the eastern United States. In August 2012, Kinder Morgan Energy Partners L.P. (KMP) announced the sale of its 50 percent interest in Rockies Express, as part of a larger asset group, to Tallgrass Energy Partners, L.P. (Tallgrass). Phillips 66 owns the remaining interest of 25 percent. Our total investment in Rockies Express is accounted for as an equity method investment. The general partner of KMP is Kinder Morgan, Inc. (KMI). As a condition of KMI receiving antitrust approval from the Federal Trade Commission (FTC) for its acquisition of El Paso Corporation, KMI agreed to divest certain assets in its natural gas pipeline group. Included in these assets is KMP's interest in Rockies Express. KMP recorded remeasurement losses during the first nine months of 2012 associated with these discontinued operations. We have recorded impairments of our partnership investment in Rockies Express of $300 million ($179 million after-tax) in the quarter ended June 30, 2012 and an additional $100 million ($60 million after-tax) in the quarter ended September 30, 2012. Our remaining carrying value in Rockies Express as of September 30, 2012 is $369 million. We recorded the write-downs as a result of our estimate of fair value for our investment at the reporting date and our conclusion that the impairments are other-than-temporary, as required by GAAP. We discuss the fair value measurement of our investment in Rockies Express in Note 8. RBS SEMPRA COMMODITIES RBS Sempra Commodities LLP (RBS Sempra Commodities) is a United Kingdom limited liability partnership that owned and operated commodities-marketing businesses previously owned by us. We and our partner in the joint venture, The Royal Bank of Scotland plc (RBS), sold substantially all of the partnership's businesses and assets in four separate transactions completed in July, November and December of 2010 and February of 2011. We account for our investment in RBS Sempra Commodities under the equity method, and report our share of partnership earnings and other associated costs in Parent and Other. In April 2011, we and RBS entered into a letter agreement (Letter Agreement) which amended certain provisions of the agreements that formed RBS Sempra Commodities. The Letter Agreement addresses the wind-down of the partnership and the distribution of the partnership's remaining assets. In accordance with the Letter Agreement, we received distributions in the nine months ended September 30, 2011 of $329 million on April 15, 2011 and $98 million on August 9, 2011. The investment balance of $126 million at September 30, 2012 reflects remaining distributions expected to be received from the partnership in accordance with the Letter Agreement. The timing and amount of distributions may be impacted by the matters we discuss related to RBS Sempra Commodities in Note 10 under “Other Litigation.” In addition, amounts may be retained by the partnership for an extended period of time to help offset unanticipated future general and administrative costs necessary to complete the dissolution of the partnership. In connection with the Letter Agreement described above, we also released RBS from its indemnification obligations with respect to the items for which J.P. Morgan Chase & Co. (JP Morgan), one of the buyers of the partnership's businesses, has agreed to indemnify us. We recorded no equity earnings or losses related to the partnership for the three months or nine months ended September 30, 2012. Pretax equity losses from RBS Sempra Commodities were $16 million and $24 million for the three months and nine months ended September 30, 2011, respectively. Included in the equity losses is an impairment charge of $16 million ($10 million after-tax) for the three months and nine months ended September 30, 2011 to reduce our investment in RBS Sempra Commodities. We discuss the fair value measurement of our investment in the partnership in Note 8. We discuss the RBS Sempra Commodities sales transactions, the Letter Agreement and other matters concerning the partnership in Note 4 of the Notes to Consolidated Financial Statements in the Updated Annual Report.

INVESTMENTS IN UNCONSOLIDATED ENTITIES

3 Months Ended

Sep. 30, 2012

Notes to Consolidated Financial Statements [Abstract]

NOTE 4. INVESTMENTS IN UNCONSOLIDATED ENTITIES

We provide additional information concerning all of our equity method investments in Note 4 of the Notes to Consolidated Financial Statements in the Updated Annual Report.

Sempra Renewables

For the nine months ended September 30, 2012, Sempra Renewables invested $296 million in its renewable wind generation joint ventures, of which $249 million was invested in the Flat Ridge 2 Wind Farm project.

Sempra Natural Gas

Sempra Natural Gas owns a 25-percent interest in Rockies Express Pipeline LLC (Rockies Express), a partnership that operates a natural gas pipeline, the Rockies Express Pipeline (REX), that links producing areas in the Rocky Mountains region to the upper Midwest and the eastern United States. In August 2012, Kinder Morgan Energy Partners L.P. (KMP) announced the sale of its 50 percent interest in Rockies Express, as part of a larger asset group, to Tallgrass Energy Partners, L.P. (Tallgrass). Phillips 66 owns the remaining interest of 25 percent. Our total investment in Rockies Express is accounted for as an equity method investment.

The general partner of KMP is Kinder Morgan, Inc. (KMI). As a condition of KMI receiving antitrust approval from the Federal Trade Commission (FTC) for its acquisition of El Paso Corporation, KMI agreed to divest certain assets in its natural gas pipeline group. Included in these assets is KMP's interest in Rockies Express. KMP recorded remeasurement losses during the first nine months of 2012 associated with these discontinued operations. We have recorded impairments of our partnership investment in Rockies Express of $300 million ($179 million after-tax) in the quarter ended June 30, 2012 and an additional $100 million ($60 million after-tax) in the quarter ended September 30, 2012. Our remaining carrying value in Rockies Express as of September 30, 2012 is $369 million. We recorded the write-downs as a result of our estimate of fair value for our investment at the reporting date and our conclusion that the impairments are other-than-temporary, as required by GAAP. We discuss the fair value measurement of our investment in Rockies Express in Note 8.

RBS SEMPRA COMMODITIES

RBS Sempra Commodities LLP (RBS Sempra Commodities) is a United Kingdom limited liability partnership that owned and operated commodities-marketing businesses previously owned by us. We and our partner in the joint venture, The Royal Bank of Scotland plc (RBS), sold substantially all of the partnership's businesses and assets in four separate transactions completed in July, November and December of 2010 and February of 2011. We account for our investment in RBS Sempra Commodities under the equity method, and report our share of partnership earnings and other associated costs in Parent and Other.

In April 2011, we and RBS entered into a letter agreement (Letter Agreement) which amended certain provisions of the agreements that formed RBS Sempra Commodities. The Letter Agreement addresses the wind-down of the partnership and the distribution of the partnership's remaining assets. In accordance with the Letter Agreement, we received distributions in the nine months ended September 30, 2011 of $329 million on April 15, 2011 and $98 million on August 9, 2011. The investment balance of $126 million at September 30, 2012 reflects remaining distributions expected to be received from the partnership in accordance with the Letter Agreement. The timing and amount of distributions may be impacted by the matters we discuss related to RBS Sempra Commodities in Note 10 under “Other Litigation.” In addition, amounts may be retained by the partnership for an extended period of time to help offset unanticipated future general and administrative costs necessary to complete the dissolution of the partnership.

In connection with the Letter Agreement described above, we also released RBS from its indemnification obligations with respect to the items for which J.P. Morgan Chase & Co. (JP Morgan), one of the buyers of the partnership's businesses, has agreed to indemnify us.

We recorded no equity earnings or losses related to the partnership for the three months or nine months ended September 30, 2012. Pretax equity losses from RBS Sempra Commodities were $16 million and $24 million for the three months and nine months ended September 30, 2011, respectively. Included in the equity losses is an impairment charge of $16 million ($10 million after-tax) for the three months and nine months ended September 30, 2011 to reduce our investment in RBS Sempra Commodities. We discuss the fair value measurement of our investment in the partnership in Note 8.

We discuss the RBS Sempra Commodities sales transactions, the Letter Agreement and other matters concerning the partnership in Note 4 of the Notes to Consolidated Financial Statements in the Updated Annual Report.

- Definition

The entire disclosure for equity method investments and joint ventures. Equity method investments are investments that give the investor the ability to exercise significant influence over the operating and financial policies of an investee. Joint ventures are entities owned and operated by a small group of businesses as a separate and specific business or project for the mutual benefit of the members of the group.

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