v3.8.0.1

DERIVATIVE FINANCIAL INSTRUMENTS - DERIVATIVE IMPACT ON INCOME (Details) - USD ($) $ in Millions | 3 Months Ended
--- | ---
Mar. 31, 2018 | Mar. 31, 2017
Derivative Instruments, Gain (Loss) [Line Items] |  |  |
Pretax gain (loss) on derivatives recognized in earnings | $ 35 | $ 106 | [1]
Designated as Hedging Instrument [Member] | Cash Flow Hedging [Member] |  |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |  |
Pretax gain (loss) recognized in OCI | 117 | (4) |
Pretax (loss) gain reclassified from AOCI into earnings | 16 | (12) |
Designated as Hedging Instrument [Member] | Cash Flow Hedging [Member] | Interest Expense [Member] | Interest rate and foreign exchange instruments [Member] |  |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |  |
Pretax gain (loss) recognized in OCI | 54 | 16 |
Pretax (loss) gain reclassified from AOCI into earnings | 2 | 3 |
Designated as Hedging Instrument [Member] | Cash Flow Hedging [Member] | Other Income, Net [Member] | Interest rate and foreign exchange instruments [Member] |  |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |  |
Pretax (loss) gain reclassified from AOCI into earnings | 18 | 0 |
Designated as Hedging Instrument [Member] | Cash Flow Hedging [Member] | Equity Losses [Member] | Interest rate and foreign exchange instruments [Member] |  |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |  |
Pretax gain (loss) recognized in OCI | 70 | (14) |
Pretax (loss) gain reclassified from AOCI into earnings | (4) | (4) |
Designated as Hedging Instrument [Member] | Cash Flow Hedging [Member] | Revenues: Energy- Related Businesses [Member] | Foreign exchange instruments [Member] |  |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |  |
Pretax gain (loss) recognized in OCI | (7) | (9) |
Pretax (loss) gain reclassified from AOCI into earnings | 0 | (2) |
Designated as Hedging Instrument [Member] | Cash Flow Hedging [Member] | Revenues: Energy- Related Businesses [Member] | Commodity contracts not subject to rate recovery [Member] |  |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |  |
Pretax gain (loss) recognized in OCI | 0 | 3 |
Pretax (loss) gain reclassified from AOCI into earnings | 0 | (9) |
Not Designated as Hedging Instrument [Member] |  |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |  |
Pretax gain (loss) on derivatives recognized in earnings | 38 | 49 |
Not Designated as Hedging Instrument [Member] | Other Income, Net [Member] | Foreign exchange instruments [Member] |  |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |  |
Pretax gain (loss) on derivatives recognized in earnings | 44 | 65 |
Not Designated as Hedging Instrument [Member] | Revenues: Energy- Related Businesses [Member] | Commodity contracts not subject to rate recovery [Member] |  |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |  |
Pretax gain (loss) on derivatives recognized in earnings | (9) | 14 |
Not Designated as Hedging Instrument [Member] | Operation and Maintenance [Member] | Commodity contracts not subject to rate recovery [Member] |  |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |  |
Pretax gain (loss) on derivatives recognized in earnings | 0 | (1) |
Not Designated as Hedging Instrument [Member] | Cost of Electric Fuel and Purchased Power [Member] | Commodity contracts subject to rate recovery [Member] |  |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |  |
Pretax gain (loss) on derivatives recognized in earnings | 2 | (29) |
Not Designated as Hedging Instrument [Member] | Cost of Natural Gas [Member] | Commodity contracts subject to rate recovery [Member] |  |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |  |
Pretax gain (loss) on derivatives recognized in earnings | 1 | 0 |
San Diego Gas and Electric Company [Member] | Designated as Hedging Instrument [Member] | Cash Flow Hedging [Member] | Interest Expense [Member] | Interest rate instruments [Member] |  |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |  |
Pretax gain (loss) recognized in OCI | 1 | 0 |
Pretax (loss) gain reclassified from AOCI into earnings | (3) | (3) |
San Diego Gas and Electric Company [Member] | Not Designated as Hedging Instrument [Member] | Cost of Electric Fuel and Purchased Power [Member] | Commodity contracts subject to rate recovery [Member] |  |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |  |
Pretax gain (loss) on derivatives recognized in earnings | 2 | (29) |
Southern California Gas Company [Member] | Not Designated as Hedging Instrument [Member] |  |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |  |
Pretax gain (loss) on derivatives recognized in earnings | 1 | (1) |
Southern California Gas Company [Member] | Not Designated as Hedging Instrument [Member] | Operation and Maintenance [Member] | Commodity contracts not subject to rate recovery [Member] |  |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |  |
Pretax gain (loss) on derivatives recognized in earnings | 0 | (1) |
Southern California Gas Company [Member] | Not Designated as Hedging Instrument [Member] | Cost of Natural Gas [Member] | Commodity contracts subject to rate recovery [Member] |  |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |  |
Pretax gain (loss) on derivatives recognized in earnings | $ 1 | $ 0 |
[1] | As adjusted for the retrospective adoption of ASU 2016-18, which we discuss in Note 2.

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- Definition The effective portion of net gain (loss) reclassified from accumulated other comprehensive income into income on derivative instruments designated and qualifying as hedging instruments. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4C -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=84234895&loc=SL5624171-113959 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4D -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=84234895&loc=SL5624177-113959 + Details
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