v3.6.0.2

SIGNIFICANT ACCOUNTING POLICIES AND OTHER FINANCIAL DATA - OTHER INTANGIBLE ASSETS (Details) - USD ($) $ in Millions | 1 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 31, 2016 | Dec. 31, 2016 | Dec. 31, 2015 | Dec. 31, 2014
Finite-Lived Intangible Assets [Line Items] |  |  |  |
Finite-lived intangible assets, Gross | $ 632 | $ 632 | $ 477 |
Accumulated amortization | (84) | (84) | (73) |
Finite-lived intangible assets, Net | 548 | 548 | 404 |
Intangible assets amortization expense |  | 11 | 10 | $ 10
Future intangible asset amortization expense per year |  | 18 |  |
Storage rights [Member] |  |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |  |
Finite-lived intangible assets, Gross | 138 | 138 | 138 |
Accumulated amortization | (25) | $ (25) | (22) |
Amortization period |  | 46 years |  |
Development rights [Member] |  |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |  |
Finite-lived intangible assets, Gross | 322 | $ 322 | 322 |
Accumulated amortization | (53) | $ (53) | (47) |
Amortization period |  | 50 years |  |
Renewable energy and consumption permit [Member] |  |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |  |
Finite-lived intangible assets, Gross | 154 | $ 154 | 0 |
Amortization period |  | 20 years |  |
Other [Member] |  |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |  |
Finite-lived intangible assets, Gross | 18 | $ 18 | 17 |
Accumulated amortization | (6) | $ (6) | $ (4) |
Other [Member] | Minimum [Member] |  |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |  |
Amortization period |  | 10 years |  |
Sempra Mexico [Member] | Renewable energy and consumption permit [Member] |  |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |  |
Finite-lived intangible assets acquired | $ 154 |  |  |

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- Definition The aggregate expense charged against earnings to allocate the cost of intangible assets (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets. As a noncash expense, this element is added back to net income when calculating cash provided by or used in operations using the indirect method. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6388964&loc=d3e16225-109274 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=56944662&loc=d3e3602-108585 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(2) -URI http://asc.fasb.org/extlink&oid=26713463&loc=d3e16323-109275 + Details
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