OTHER FINANCIAL DATA - RECLASSIFICATION FROM ACCUMULATED OTHER COMPREHENSIVE INCOME (Details) - USD ($)
$ in Millions |
3 Months Ended |
9 Months Ended |
Sep. 30, 2016 |
Sep. 30, 2015 |
Sep. 30, 2016 |
Sep. 30, 2015 |
| Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items] |
|
|
|
|
| Interest expense |
$ (136)
|
$ (143)
|
$ (421)
|
$ (416)
|
| Equity earnings, before income tax |
12
|
33
|
4
|
79
|
| Remeasurement of equity method investment |
617
|
0
|
617
|
0
|
| Equity earnings, net of income tax |
19
|
27
|
69
|
64
|
| Revenues: Energy-Related Businesses |
271
|
268
|
613
|
762
|
| Income before income taxes and equity earnings of certain unconsolidated subsidiaries |
982
|
270
|
1,325
|
1,272
|
| Income Tax Expense |
(282)
|
(15)
|
(284)
|
(276)
|
| Earnings Attributable to Noncontrolling Interests |
(97)
|
(34)
|
(118)
|
(79)
|
| Earnings (losses) |
622
|
248
|
991
|
980
|
| Total reclassifications for the period, net of tax |
7
|
6
|
12
|
9
|
| Gains (Losses) on Cash Flow hedges Attributable to Parent [Member] |
|
|
|
|
| Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items] |
|
|
|
|
| Total reclassifications for the period, net of tax |
5
|
1
|
8
|
2
|
| Gain (Loss) on Pension and Other Postretirement Benefits [Member] |
|
|
|
|
| Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items] |
|
|
|
|
| Reclassification from AOCI |
4
|
7
|
8
|
11
|
| Pension and Other Postretirement Benefits [Member] |
|
|
|
|
| Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items] |
|
|
|
|
| Income tax expense |
(2)
|
(2)
|
(4)
|
(4)
|
| Total reclassifications for the period, net of tax |
2
|
5
|
4
|
7
|
| Reclassification out of Accumulated Other Comprehensive Income [Member] | Gains (Losses) on Cash Flow hedges [Member] |
|
|
|
|
| Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items] |
|
|
|
|
| Income before income taxes and equity earnings of certain unconsolidated subsidiaries |
12
|
5
|
23
|
13
|
| Income Tax Expense |
(3)
|
(1)
|
(4)
|
(1)
|
| Net of income tax |
9
|
4
|
19
|
12
|
| Reclassification out of Accumulated Other Comprehensive Income [Member] | Gains (Losses) on Cash Flow hedges [Member] | Interest rate and foreign exchange instruments [Member] |
|
|
|
|
| Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items] |
|
|
|
|
| Interest expense |
4
|
5
|
11
|
14
|
| Remeasurement of equity method investment |
7
|
0
|
7
|
0
|
| Equity earnings, net of income tax |
(2)
|
0
|
4
|
0
|
| Reclassification out of Accumulated Other Comprehensive Income [Member] | Gains (Losses) on Cash Flow hedges [Member] | Interest rate instruments [Member] |
|
|
|
|
| Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items] |
|
|
|
|
| Equity earnings, before income tax |
3
|
3
|
8
|
9
|
| Reclassification out of Accumulated Other Comprehensive Income [Member] | Gains (Losses) on Cash Flow hedges [Member] | Commodity contracts not subject to rate recovery [Member] |
|
|
|
|
| Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items] |
|
|
|
|
| Revenues: Energy-Related Businesses |
0
|
(3)
|
(7)
|
(10)
|
| Reclassification out of Accumulated Other Comprehensive Income [Member] | Gains (Losses) on Cash Flow hedges Attributable to Noncontrolling Interests [Member] |
|
|
|
|
| Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items] |
|
|
|
|
| Earnings Attributable to Noncontrolling Interests |
(4)
|
(3)
|
(11)
|
(10)
|
| Reclassification out of Accumulated Other Comprehensive Income [Member] | Gains (Losses) on Cash Flow hedges Attributable to Parent [Member] |
|
|
|
|
| Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items] |
|
|
|
|
| Earnings (losses) |
5
|
1
|
8
|
2
|
| San Diego Gas and Electric Company [Member] |
|
|
|
|
| Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items] |
|
|
|
|
| Interest expense |
(49)
|
(51)
|
(145)
|
(155)
|
| Income before income taxes and equity earnings of certain unconsolidated subsidiaries |
285
|
257
|
622
|
680
|
| Income Tax Expense |
(91)
|
(75)
|
(204)
|
(217)
|
| Earnings Attributable to Noncontrolling Interests |
(11)
|
(12)
|
1
|
(20)
|
| Total reclassifications for the period, net of tax |
0
|
0
|
0
|
0
|
| San Diego Gas and Electric Company [Member] | Reclassification out of Accumulated Other Comprehensive Income [Member] | Gains (Losses) on Cash Flow hedges [Member] | Interest rate instruments [Member] |
|
|
|
|
| Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items] |
|
|
|
|
| Interest expense |
3
|
3
|
9
|
9
|
| San Diego Gas and Electric Company [Member] | Reclassification out of Accumulated Other Comprehensive Income [Member] | Gains (Losses) on Cash Flow hedges Attributable to Noncontrolling Interests [Member] |
|
|
|
|
| Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items] |
|
|
|
|
| Earnings Attributable to Noncontrolling Interests |
(3)
|
(3)
|
(9)
|
(9)
|
| Southern California Gas Company [Member] |
|
|
|
|
| Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items] |
|
|
|
|
| Interest expense |
(25)
|
(23)
|
(71)
|
(61)
|
| Income before income taxes and equity earnings of certain unconsolidated subsidiaries |
21
|
(28)
|
274
|
368
|
| Income Tax Expense |
(21)
|
20
|
(75)
|
(91)
|
| Total reclassifications for the period, net of tax |
1
|
0
|
1
|
0
|
| Southern California Gas Company [Member] | Gains (Losses) on Cash Flow hedges Attributable to Parent [Member] |
|
|
|
|
| Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items] |
|
|
|
|
| Total reclassifications for the period, net of tax |
1
|
|
1
|
|
| Southern California Gas Company [Member] | Pension and Other Postretirement Benefits [Member] |
|
|
|
|
| Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items] |
|
|
|
|
| Total reclassifications for the period, net of tax |
0
|
|
0
|
|
| Southern California Gas Company [Member] | Reclassification out of Accumulated Other Comprehensive Income [Member] | Gains (Losses) on Cash Flow hedges [Member] | Interest rate instruments [Member] |
|
|
|
|
| Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items] |
|
|
|
|
| Interest expense |
$ 1
|
$ 0
|
$ 1
|
$ 0
|