v3.6.0.2

SIGNIFICANT ACCOUNTING POLICIES AND OTHER FINANCIAL DATA - GREENHOUSE GAS (GHG) ALLOWANCES (Details) - USD ($) $ in Millions | Dec. 31, 2016 | Dec. 31, 2015
--- | --- | ---
Regulatory Assets [Abstract] |  |
Noncurrent | $ 3,414 | $ 3,273
Greenhouse Gas Obligation [Member] |  |
Regulatory LIabilities [Abstract] |  |
Current | 40 | 41
Noncurrent | 171 | 91
Total liabilities | 211 | 132
Greenhouse Gas Allowance [Member] |  |
Regulatory Assets [Abstract] |  |
Current | 40 | 42
Noncurrent | 295 | 201
Total assets | 335 | 243
San Diego Gas and Electric Company [Member] |  |
Regulatory Assets [Abstract] |  |
Current | 81 | 107
Noncurrent | 998 | 977
San Diego Gas and Electric Company [Member] | Greenhouse Gas Obligation [Member] |  |
Regulatory LIabilities [Abstract] |  |
Current | 16 | 17
Noncurrent | 72 | 34
Total liabilities | 88 | 51
San Diego Gas and Electric Company [Member] | Greenhouse Gas Allowance [Member] |  |
Regulatory Assets [Abstract] |  |
Current | 16 | 17
Noncurrent | 182 | 141
Total assets | 198 | 158
Southern California Gas Company [Member] |  |
Regulatory Assets [Abstract] |  |
Current | 8 | 7
Noncurrent | 589 | 636
Southern California Gas Company [Member] | Greenhouse Gas Obligation [Member] |  |
Regulatory LIabilities [Abstract] |  |
Current | 24 | 18
Noncurrent | 96 | 41
Total liabilities | 120 | 59
Southern California Gas Company [Member] | Greenhouse Gas Allowance [Member] |  |
Regulatory Assets [Abstract] |  |
Current | 24 | 19
Noncurrent | 109 | 43
Total assets | $ 133 | $ 62

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- Definition The amount for the individual regulatory asset as itemized in a table of regulatory assets as of the end of the period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 980 -SubTopic 340 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6499975&loc=d3e44250-110382 + Details
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- Definition Carrying amount as of the balance sheet date of capitalized costs of regulated entities that are expected to be recovered through revenue sources within one year or the normal operating cycle, if longer. Such costs are capitalized if they meet both of the following criteria: a. It is probable that future revenue in an amount at least equal to the capitalized cost will result from inclusion of that cost in allowable costs for rate-making purposes. b. Based on available evidence, the future revenue will be provided to permit recovery of the previously incurred cost rather than to provide for expected levels of similar future costs. If the revenue will be provided through an automatic rate-adjustment clause, this criterion requires that the regulator's intent clearly be to permit recovery of the previously incurred cost. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 980 -SubTopic 340 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6499975&loc=d3e44250-110382 + Details
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