Asset Impairment Charges, Net of Taxes and Noncontrolling Interests

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- Definition

Assets, Measurement Input

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- Definition

Amount of write-down of assets recognized in the income statement. Includes, but is not limited to, losses from tangible assets, intangible assets and goodwill.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 28
-Subparagraph (b)
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Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 360
-SubTopic 10
-Section 45
-Paragraph 4
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- Definition

Fair value portion of probable future economic benefits obtained or controlled by an entity as a result of past transactions or events.

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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 2
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- Definition

The parent entity's interest in net assets of the subsidiary, expressed as a percentage.

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FAIR VALUE MEASUREMENTS - NONRECURRING FAIR VALUE MEASURES (Details) - Disposal Group Held-for-sale [Member] $ in Millions	1 Months Ended
	Jun. 30, 2018 USD ($)	Jun. 25, 2018 USD ($)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Impairment charges	$ 1,500
Impairment charges net of taxes and noncontrolling interests	900
Sempra Renewables [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Impairment charges	200
Impairment charges net of taxes and noncontrolling interests	145
Sempra LNG & Midstream [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Impairment charges	1,300
Impairment charges net of taxes and noncontrolling interests	755
Wind Facilities [Member] \| Sempra Renewables [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Impairment charges	200
Impairment charges net of taxes and noncontrolling interests	145
Non-utility natural gas storage assets [Member] \| Sempra LNG & Midstream [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Impairment charges	1,300
Impairment charges net of taxes and noncontrolling interests	755
Valuation Technique, Discounted Cash Flow [Member] \| Sempra LNG & Midstream [Member] \| Nonrecurring Measurement [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value of assets	37
Valuation Technique, Discounted Cash Flow [Member] \| Wind Facilities [Member] \| Sempra Renewables [Member] \| Nonrecurring Measurement [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value of assets	141	$ 145
Percentage of fair value measurement		100.00%
Valuation Technique, Discounted Cash Flow [Member] \| Non-utility natural gas storage assets [Member] \| Sempra LNG & Midstream [Member] \| Nonrecurring Measurement [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value of assets	$ 138	$ 190
Percentage of fair value measurement		100.00%
Bay Gas [Member] \| Non-utility natural gas storage assets [Member] \| Sempra LNG & Midstream [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Ownership interest		90.90%
LA Storage [Member] \| Non-utility natural gas storage assets [Member] \| Sempra LNG & Midstream [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Ownership interest		75.40%
Merchant Prices [Member] \| Minimum [Member] \| Valuation Technique, Discounted Cash Flow [Member] \| Wind Facilities [Member] \| Sempra Renewables [Member] \| Nonrecurring Measurement [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value input		29
Merchant Prices [Member] \| Maximum [Member] \| Valuation Technique, Discounted Cash Flow [Member] \| Wind Facilities [Member] \| Sempra Renewables [Member] \| Nonrecurring Measurement [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value input		92
Discount Rate [Member] \| Valuation Technique, Discounted Cash Flow [Member] \| Non-utility natural gas storage assets [Member] \| Sempra LNG & Midstream [Member] \| Nonrecurring Measurement [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value input		10.00%
Discount Rate [Member] \| Minimum [Member] \| Valuation Technique, Discounted Cash Flow [Member] \| Wind Facilities [Member] \| Sempra Renewables [Member] \| Nonrecurring Measurement [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value input		8.00%
Discount Rate [Member] \| Maximum [Member] \| Valuation Technique, Discounted Cash Flow [Member] \| Wind Facilities [Member] \| Sempra Renewables [Member] \| Nonrecurring Measurement [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value input		10.00%
Storage Rates [Member] \| Minimum [Member] \| Valuation Technique, Discounted Cash Flow [Member] \| Non-utility natural gas storage assets [Member] \| Sempra LNG & Midstream [Member] \| Nonrecurring Measurement [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value input		0.06
Storage Rates [Member] \| Maximum [Member] \| Valuation Technique, Discounted Cash Flow [Member] \| Non-utility natural gas storage assets [Member] \| Sempra LNG & Midstream [Member] \| Nonrecurring Measurement [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value input		0.22