Charges Related to Permanent Capacity Releases, Net of Tax

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- Definition

Increase (Decrease) in Unrecorded Unconditional Purchase Obligation

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- Definition

Increase (Decrease) in Unrecorded Unconditional Purchase Obligation, After Five Years

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No definition available.

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- Definition

Increase (Decrease) in Unrecorded Unconditional Purchase Obligation, Remainder of Fiscal Year

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No definition available.

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- Definition

Increase (Decrease) in Unrecorded Unconditional Purchase Obligation, Year Five

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No definition available.

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- Definition

Increase (Decrease) in Unrecorded Unconditional Purchase Obligation, Year Four

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No definition available.

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- Definition

Increase (Decrease) in Unrecorded Unconditional Purchase Obligation, Year Three

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No definition available.

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- Definition

Increase (Decrease) in Unrecorded Unconditional Purchase Obligation, Year Two

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- Definition

Increase (decrease) in unrecorded unconditional purchase obligations, after two years

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No definition available.

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- Definition

Power Plant, Energy Generating Capacity

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- Definition

Power Purchase Agreement, Term

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- Definition

The increase during the period in capital lease obligations due to entering into new capital leases.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 50
-Paragraph 4
-URI http://asc.fasb.org/extlink&oid=98513485&loc=d3e4313-108586

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 50
-Paragraph 3
-URI http://asc.fasb.org/extlink&oid=98513485&loc=d3e4304-108586

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- Definition

Amount of minimum lease payments for capital leases.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 840
-SubTopic 30
-Section 50
-Paragraph 1
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=84164817&loc=d3e45280-112737

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- Definition

Amount of minimum lease payments for capital leases due in the fifth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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- Definition

Amount of minimum lease payments for capital leases due in the fourth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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- Definition

Amount of minimum lease payments for capital leases due in the third fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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- Definition

Amount of minimum lease payments for capital leases due in the second fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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- Definition

Amount of minimum lease payments for capital leases due after the fifth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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- Definition

Amount necessary to reduce net minimum lease payments to present value for capital leases.

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- Definition

Present value of minimum lease payments for capital leases net of executory costs, including amounts paid by the lessee to the lessor for insurance, maintenance and taxes.

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- Definition

Amount of minimum lease payments for capital leases due in the remainder of the fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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No definition available.

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- Definition

Amount awarded from other party in judgment or settlement of litigation.

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- Definition

Other deductions and charges as defined.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Rule 15c3-1
-Number 240
-Section 15c3-1

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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.

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No definition available.

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COMMITMENTS AND CONTINGENCIES - CONTRACTUAL COMMITMENTS (Details) $ in Millions		1 Months Ended			3 Months Ended	9 Months Ended	12 Months Ended
	Mar. 13, 2017 USD ($)	Jun. 30, 2017 USD ($)	May 31, 2017 USD ($)	May 31, 2016 USD ($)	Mar. 31, 2017 MW	Sep. 30, 2017 USD ($)	Dec. 31, 2015	Jun. 30, 2016 USD ($)
Unrecorded Unconditional Purchase Obligation [Line Items]
Settlement amount received	$ 118
Sempra LNG & Midstream [Member]
Unrecorded Unconditional Purchase Obligation [Line Items]
Pretax charge related to permanent release of capacity								$ 206
After-tax charge related to permanent release of capa								$ 123
Settlement amount received			$ 57	$ 47
Sempra LNG & Midstream [Member] \| Natural Gas Contracts [Member]
Unrecorded Unconditional Purchase Obligation [Line Items]
Increase (decrease) in commitment amount						$ (188)
Increase (decrease) in commitment amount, 2017						(192)
Increase (decrease) in commitment amount, 2018						3
Increase (decrease) in unrecorded unconditional purchase obligations, after two years						1
Sempra LNG & Midstream [Member] \| Liquefied Natural Gas Contracts [Member]
Unrecorded Unconditional Purchase Obligation [Line Items]
Increase (decrease) in commitment amount, 2017						(425)
Increase (decrease) in commitment amount, 2018						(40)
Increase (decrease) in commitment amount, 2019						(22)
Increase (decrease) in commitment amount, 2020						(32)
Increase (decrease) in commitment amount, 2021						(37)
Increase (decrease) in commitment amount, thereafter						(775)
Sempra Renewables [Member]
Unrecorded Unconditional Purchase Obligation [Line Items]
Increase (decrease) in commitment amount						155
Increase (decrease) in commitment amount, 2017						124
Increase (decrease) in commitment amount, 2018						26
Increase (decrease) in commitment amount, 2019						2
Increase (decrease) in commitment amount, 2020						2
Increase (decrease) in commitment amount, 2021						1
San Diego Gas and Electric Company [Member]
Unrecorded Unconditional Purchase Obligation [Line Items]
Increase (decrease) in commitment amount						23
Increase (decrease) in commitment amount, 2017						2
Increase (decrease) in commitment amount, 2018						26
Settlement amount received	$ 24
Increase (decrease) in commitment amount, 2019						(7)
Increase (decrease) in commitment amount, 2020						7
Increase (decrease) in commitment amount, 2021						2
Increase (decrease) in commitment amount, thereafter						(7)
San Diego Gas and Electric Company [Member] \| Peaker Plant Facility [Member]
Unrecorded Unconditional Purchase Obligation [Line Items]
Term of power purchase agreement							25 years
Capital lease obligations incurred		$ 500
San Diego Gas and Electric Company [Member] \| Purchased Power Contracts [Member]
Unrecorded Unconditional Purchase Obligation [Line Items]
2017						0
2018						88
2019						105
2020						105
2021						105
Thereafter						1,706
Total minimum lease payments						2,109
Less: interest						(1,559)
Present value of net minimum lease payments						$ 550
San Diego Gas and Electric Company [Member] \| Intermediate Stage Power Plant Facility [Member]
Unrecorded Unconditional Purchase Obligation [Line Items]
Term of power purchase agreement					20 years
Generating capacity (in mw) \| MW					500