Capital lease term.

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- Definition

Number Of Power Purchase Agreements With Peaker Facilities, Capital Leases.

+ References

No definition available.

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- Definition

Number Of Power Purchase Agreements With Peaker Facilities In Commercial Operation In 2017.

+ References

No definition available.

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- Definition

Power Plant, Energy Generating Capacity

+ References

No definition available.

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- Definition

Power Purchase Agreement, Term

+ References

No definition available.

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- Definition

Amount equal to the present value (the principal) at the beginning of the lease term of minimum lease payments during the lease term (excluding that portion of the payments representing executory costs such as insurance, maintenance, and taxes to be paid by the lessor, together with any profit thereon) net of payments or other amounts applied to the principal through the balance sheet date.

+ 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

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
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-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
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-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-03(a)(16))
-URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910

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- Definition

Amount of capital lease obligation due within one year or the normal operating cycle, if longer.

+ 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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-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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-Section 45
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Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition

Amount of minimum lease payments for capital leases.

+ References

+ Details

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- References

No definition available.

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- Definition

Amount of minimum lease payments for capital leases due in the next 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.

+ References

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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.

+ References

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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.

+ References

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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.

+ References

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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.

+ References

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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.

+ References

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- Definition

Amounts to be paid by lessee to lessor for maintenance, insurance, and tax expenses related to the leased asset.

+ References

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- Definition

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

+ References

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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.

+ References

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- Definition

The charge for the use of long-lived depreciable capital leased assets for the period.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 980
-SubTopic 840
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-URI http://asc.fasb.org/extlink&oid=84167768&loc=d3e56872-110439

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COMMITMENTS AND CONTINGENCIES - CAPITAL LEASES (Details) $ in Millions	12 Months Ended
	Dec. 31, 2017 USD ($) MW	Dec. 31, 2016 USD ($)	Dec. 31, 2015 USD ($)
Power Purchase Agreements [Member]
Capital Leases, Future Minimum Payments Due, Fiscal Year Maturity [Abstract]
2018	$ 192
2019	210
2020	210
2021	210
2022	210
Thereafter	3,299
Total minimum payments	4,331
Less: estimated executory costs	(502)
Less: interest	(2,548)
Present value of net minimum lease payments	1,281
Capital leases, Current portion	13
Capital leases, Noncurrent portion	718
Power Purchase Agreement Upon Completion of Power Plant [Member]
Capital Leases, Future Minimum Payments Due, Fiscal Year Maturity [Abstract]
Present value of net minimum lease payments	$ 550
HQ Build To Suit Lease [Member]
Leases, Capital [Abstract]
Capital Lease Term (Years)	25
Capital Leases, Future Minimum Payments Due, Fiscal Year Maturity [Abstract]
2018	$ 10
2019	10
2020	11
2021	11
2022	11
Thereafter	234
Total minimum payments	287
Present value of net minimum lease payments	138
Fleet And Other Capital Leases [Member]
Capital Leases, Future Minimum Payments Due, Fiscal Year Maturity [Abstract]
2018	4
2019	2
2020	1
2021	0
2022	0
Thereafter	8
Present value of net minimum lease payments	8
Utility Fleet Leases [Member]
Capital Leases, Income Statement of Lessee [Abstract]
Capital lease depreciation expense	3	$ 2	$ 4
San Diego Gas and Electric Company [Member]
Leases, Capital [Abstract]
Capital lease obligations	$ 732	240
San Diego Gas and Electric Company [Member] \| Power Purchase Agreements [Member]
Leases, Capital [Abstract]
Number Of Power Purchase Agreements With Peaker Facilities, Capital Leases	5
Number Of Power Purchase Agreements With Peaker Facilities In Commercial Operation In 2015	1
Capital lease obligations	$ 731
Capital Leases, Income Statement of Lessee [Abstract]
Capital lease depreciation expense	$ 8	4	4
San Diego Gas and Electric Company [Member] \| Purchase Power Agreements With 25 Year Term [Member]
Leases, Capital [Abstract]
Number Of Power Purchase Agreements With Peaker Facilities, Capital Leases	4
Capital Lease Term (Years)	25
San Diego Gas and Electric Company [Member] \| Purchase Power Agreements With 9 Year Term [Member]
Leases, Capital [Abstract]
Number Of Power Purchase Agreements With Peaker Facilities, Capital Leases	1
Capital Lease Term (Years)	9
San Diego Gas and Electric Company [Member] \| Fleet And Other Capital Leases [Member]
Capital Leases, Future Minimum Payments Due, Fiscal Year Maturity [Abstract]
2018	$ 1
San Diego Gas and Electric Company [Member] \| Utility Fleet Leases [Member]
Capital Leases, Income Statement of Lessee [Abstract]
Capital lease depreciation expense	$ 1	1	2
San Diego Gas and Electric Company [Member] \| Intermediate Stage Power Plant Facility [Member]
Leases, Capital [Abstract]
Power purchase agreement term	20 years
Generating capacity (in mw) \| MW	500
Southern California Gas Company [Member]
Leases, Capital [Abstract]
Capital lease obligations	$ 1	0
Southern California Gas Company [Member] \| Fleet And Other Capital Leases [Member]
Capital Leases, Future Minimum Payments Due, Fiscal Year Maturity [Abstract]
2018	1
Southern California Gas Company [Member] \| Utility Fleet Leases [Member]
Capital Leases, Income Statement of Lessee [Abstract]
Capital lease depreciation expense	$ 2	$ 1	$ 2