v3.6.0.2

SIGNIFICANT ACCOUNTING POLICIES AND OTHER FINANCIAL DATA - RECLASSIFICATION FROM ACCUMULATED OTHER COMPREHENSIVE INCOME (Details) - USD ($) $ in Millions | 3 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 31, 2016 | Sep. 30, 2016 | Jun. 30, 2016 | Mar. 31, 2016 | Dec. 31, 2015 | Sep. 30, 2015 | Jun. 30, 2015 | Mar. 31, 2015 | Dec. 31, 2016 | Dec. 31, 2015 | Dec. 31, 2014
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items] |  |  |  |  |  |  |  |  |  |  |
Interest expense |  |  |  |  |  |  |  |  | $ (553) | $ (561) | $ (554)
Gain on sale of assets |  |  |  |  |  |  |  |  | 134 | 70 | 62
Equity earnings, before income tax |  |  |  |  |  |  |  |  | 6 | 104 | 81
Remeasurement of equity method investment |  |  |  |  |  |  |  |  | 617 | 0 | 0
Equity earnings, net of income tax |  |  |  |  |  |  |  |  | 78 | 85 | 38
Other income, net |  |  |  |  |  |  |  |  | 132 | 126 | 137
Energy-related businesses |  |  |  |  |  |  |  |  | 922 | 977 | 1,277
Income before income taxes |  |  |  |  |  |  |  |  | 1,830 | 1,704 | 1,524
Income tax (expense) benefit |  |  |  |  |  |  |  |  | (389) | (341) | (300)
Earnings attributable to noncontrolling interest |  |  |  |  |  |  |  |  | 148 | 98 | 100
Net income/Earnings | $ 379 | $ 622 | $ 16 | $ 353 | $ 369 | $ 248 | $ 295 | $ 437 | 1,370 | 1,349 | 1,161
Reclassification from AOCI, Net of taxes |  |  |  |  |  |  |  |  | 18 | 18 | 20
Financial instruments attributable to parent [Member] |  |  |  |  |  |  |  |  |  |  |
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items] |  |  |  |  |  |  |  |  |  |  |
Reclassification from AOCI, Net of taxes |  |  |  |  |  |  |  |  | 19 | 10 | 6
Amortization of actuarial loss [Member] |  |  |  |  |  |  |  |  |  |  |
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items] |  |  |  |  |  |  |  |  |  |  |
Reclassification from AOCI, before taxes |  |  |  |  |  |  |  |  | 10 | 14 | 23
Prior service credit [Member] |  |  |  |  |  |  |  |  |  |  |
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items] |  |  |  |  |  |  |  |  |  |  |
Reclassification from AOCI, before taxes |  |  |  |  |  |  |  |  | 1 | 0 | 0
Pension and other postretirement benefits [Member] |  |  |  |  |  |  |  |  |  |  |
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items] |  |  |  |  |  |  |  |  |  |  |
Reclassification from AOCI, before taxes |  |  |  |  |  |  |  |  | 11 | 14 | 23
Reclassification from AOCI, Taxes |  |  |  |  |  |  |  |  | (5) | (6) | (9)
Reclassification from AOCI, Net of taxes |  |  |  |  |  |  |  |  | 6 | 8 | 14
Reclassification out of Accumulated Other Comprehensive Income [Member] | Financial instruments [Member] |  |  |  |  |  |  |  |  |  |  |
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items] |  |  |  |  |  |  |  |  |  |  |
Income before income taxes |  |  |  |  |  |  |  |  | 33 | 29 | 20
Income tax (expense) benefit |  |  |  |  |  |  |  |  | (6) | (4) | (3)
Net of income tax |  |  |  |  |  |  |  |  | 27 | 25 | 17
Reclassification out of Accumulated Other Comprehensive Income [Member] | Financial instruments [Member] | Interest rate and foreign exchange instruments [Member] |  |  |  |  |  |  |  |  |  |  |
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items] |  |  |  |  |  |  |  |  |  |  |
Interest expense |  |  |  |  |  |  |  |  | 17 | 18 | 21
Remeasurement of equity method investment |  |  |  |  |  |  |  |  | 7 | 0 | 0
Equity earnings, net of income tax |  |  |  |  |  |  |  |  | 5 | 13 | 0
Reclassification out of Accumulated Other Comprehensive Income [Member] | Financial instruments [Member] | Interest rate instruments [Member] |  |  |  |  |  |  |  |  |  |  |
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items] |  |  |  |  |  |  |  |  |  |  |
Gain on sale of assets |  |  |  |  |  |  |  |  | 0 | 0 | (3)
Equity earnings, before income tax |  |  |  |  |  |  |  |  | 10 | 12 | 10
Reclassification out of Accumulated Other Comprehensive Income [Member] | Financial instruments [Member] | Commodity Contracts Not Subject To Rate Recovery [Member] |  |  |  |  |  |  |  |  |  |  |
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items] |  |  |  |  |  |  |  |  |  |  |
Energy-related businesses |  |  |  |  |  |  |  |  | (6) | (14) | (8)
Reclassification out of Accumulated Other Comprehensive Income [Member] | Financial instruments attributable to Noncontrolling interests [Member] |  |  |  |  |  |  |  |  |  |  |
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items] |  |  |  |  |  |  |  |  |  |  |
Earnings attributable to noncontrolling interest |  |  |  |  |  |  |  |  | 15 | 15 | 11
Reclassification out of Accumulated Other Comprehensive Income [Member] | Financial instruments attributable to parent [Member] |  |  |  |  |  |  |  |  |  |  |
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items] |  |  |  |  |  |  |  |  |  |  |
Net income/Earnings |  |  |  |  |  |  |  |  | 12 | 10 | 6
Parent Company [Member] |  |  |  |  |  |  |  |  |  |  |
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items] |  |  |  |  |  |  |  |  |  |  |
Interest expense |  |  |  |  |  |  |  |  | (277) | (261) | (235)
Equity earnings, net of income tax |  |  |  |  |  |  |  |  | 1,549 | 1,519 | 1,291
Other income, net |  |  |  |  |  |  |  |  | (2) | 7 | 50
Income tax (expense) benefit |  |  |  |  |  |  |  |  | 181 | 150 | 133
Net of income tax |  |  |  |  |  |  |  |  | (179) | (170) | (130)
Net income/Earnings |  |  |  |  |  |  |  |  | 1,370 | 1,349 | 1,161
San Diego Gas and Electric Company [Member] |  |  |  |  |  |  |  |  |  |  |
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items] |  |  |  |  |  |  |  |  |  |  |
Interest expense |  |  |  |  |  |  |  |  | (195) | (204) | (202)
Other income, net |  |  |  |  |  |  |  |  | 50 | 36 | 40
Income before income taxes |  |  |  |  |  |  |  |  | 845 | 890 | 797
Income tax (expense) benefit |  |  |  |  |  |  |  |  | (280) | (284) | (270)
Earnings attributable to noncontrolling interest |  |  |  |  |  |  |  |  | (5) | 19 | 20
Net income/Earnings |  |  |  |  |  |  |  |  | 570 | 587 | 507
Reclassification from AOCI, Net of taxes |  |  |  |  |  |  |  |  | 1 | 1 | 2
San Diego Gas and Electric Company [Member] | Amortization of actuarial loss [Member] |  |  |  |  |  |  |  |  |  |  |
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items] |  |  |  |  |  |  |  |  |  |  |
Reclassification from AOCI, before taxes |  |  |  |  |  |  |  |  | 1 | 1 | 3
San Diego Gas and Electric Company [Member] | Pension and other postretirement benefits [Member] |  |  |  |  |  |  |  |  |  |  |
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items] |  |  |  |  |  |  |  |  |  |  |
Reclassification from AOCI, Taxes |  |  |  |  |  |  |  |  | 0 | 0 | (1)
Reclassification from AOCI, Net of taxes |  |  |  |  |  |  |  |  | 1 | 1 | 2
San Diego Gas and Electric Company [Member] | Reclassification out of Accumulated Other Comprehensive Income [Member] | Financial instruments [Member] | Interest rate instruments [Member] |  |  |  |  |  |  |  |  |  |  |
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items] |  |  |  |  |  |  |  |  |  |  |
Interest expense |  |  |  |  |  |  |  |  | 12 | 12 | 11
San Diego Gas and Electric Company [Member] | Reclassification out of Accumulated Other Comprehensive Income [Member] | Financial instruments attributable to Noncontrolling interests [Member] |  |  |  |  |  |  |  |  |  |  |
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items] |  |  |  |  |  |  |  |  |  |  |
Earnings attributable to noncontrolling interest |  |  |  |  |  |  |  |  | 12 | 12 | 11
San Diego Gas and Electric Company [Member] | Reclassification out of Accumulated Other Comprehensive Income [Member] | Financial instruments attributable to parent [Member] |  |  |  |  |  |  |  |  |  |  |
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items] |  |  |  |  |  |  |  |  |  |  |
Reclassification from AOCI, Net of taxes |  |  |  |  |  |  |  |  | 0 | 0 | 0
Southern California Gas Company [Member] |  |  |  |  |  |  |  |  |  |  |
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items] |  |  |  |  |  |  |  |  |  |  |
Interest expense |  |  |  |  |  |  |  |  | (97) | (84) | (69)
Other income, net |  |  |  |  |  |  |  |  | 32 | 30 | 20
Income before income taxes |  |  |  |  |  |  |  |  | 493 | 558 | 472
Income tax (expense) benefit |  |  |  |  |  |  |  |  | (143) | (138) | (139)
Net income/Earnings |  |  |  |  |  |  |  |  | 350 | 420 | 333
Reclassification from AOCI, Net of taxes |  |  |  |  |  |  |  |  | 1 | 0 | 3
Southern California Gas Company [Member] | Financial instruments attributable to parent [Member] |  |  |  |  |  |  |  |  |  |  |
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items] |  |  |  |  |  |  |  |  |  |  |
Reclassification from AOCI, Net of taxes |  |  |  |  |  |  |  |  | 1 |  | 0
Southern California Gas Company [Member] | Amortization of actuarial loss [Member] |  |  |  |  |  |  |  |  |  |  |
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items] |  |  |  |  |  |  |  |  |  |  |
Reclassification from AOCI, before taxes |  |  |  |  |  |  |  |  | 0 | 0 | 5
Southern California Gas Company [Member] | Pension and other postretirement benefits [Member] |  |  |  |  |  |  |  |  |  |  |
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items] |  |  |  |  |  |  |  |  |  |  |
Reclassification from AOCI, Taxes |  |  |  |  |  |  |  |  | 0 | 0 | (2)
Reclassification from AOCI, Net of taxes |  |  |  |  |  |  |  |  | 0 | 0 | 3
Southern California Gas Company [Member] | Reclassification out of Accumulated Other Comprehensive Income [Member] | Financial instruments attributable to parent [Member] |  |  |  |  |  |  |  |  |  |  |
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items] |  |  |  |  |  |  |  |  |  |  |
Income tax (expense) benefit |  |  |  |  |  |  |  |  | 0 | (1) | (1)
Net income/Earnings |  |  |  |  |  |  |  |  | 1 | 0 | 0
Southern California Gas Company [Member] | Reclassification out of Accumulated Other Comprehensive Income [Member] | Financial instruments attributable to parent [Member] | Interest rate instruments [Member] |  |  |  |  |  |  |  |  |  |  |
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items] |  |  |  |  |  |  |  |  |  |  |
Interest expense |  |  |  |  |  |  |  |  | $ 1 | $ 1 | $ 1

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