OTHER FINANCIAL DATA - VARIABLE INTEREST ENTITIES (Details)
$ in Millions |
3 Months Ended |
9 Months Ended |
|
|
Sep. 30, 2016
USD ($)
|
Sep. 30, 2015
USD ($)
|
Sep. 30, 2016
USD ($)
MW
|
Sep. 30, 2015
USD ($)
|
Dec. 31, 2015
USD ($)
|
| Variable Interest Entities [Line Items] |
|
|
|
|
|
| Operation and maintenance |
$ 703
|
$ 701
|
$ 2,109
|
$ 2,072
|
|
| Depreciation and amortization |
328
|
315
|
970
|
925
|
|
| Interest expense |
(136)
|
(143)
|
(421)
|
(416)
|
|
| Income (loss) before income taxes/Net income (loss) |
719
|
282
|
1,110
|
1,060
|
|
| (Earnings) losses attributable to noncontrolling interest |
(97)
|
(34)
|
(118)
|
(79)
|
|
| Earnings attributable to common shares |
622
|
248
|
991
|
980
|
|
| Sempra Natural Gas [Member] | Cameron LNG Holdings [Member] |
|
|
|
|
|
| Investments [Abstract] |
|
|
|
|
|
| Carrying value of equity method investment |
838
|
|
838
|
|
$ 983
|
| San Diego Gas and Electric Company [Member] |
|
|
|
|
|
| Variable Interest Entities [Line Items] |
|
|
|
|
|
| Operating income |
323
|
300
|
729
|
809
|
|
| Interest expense |
(49)
|
(51)
|
(145)
|
(155)
|
|
| Income (loss) before income taxes/Net income (loss) |
194
|
182
|
418
|
463
|
|
| (Earnings) losses attributable to noncontrolling interest |
(11)
|
(12)
|
$ 1
|
(20)
|
|
| San Diego Gas and Electric Company [Member] | Otay Mesa VIE [Member] |
|
|
|
|
|
| Variable Interest Entities [Line Items] |
|
|
|
|
|
| Power generating capacity | MW |
|
|
605
|
|
|
| Equity of variable interest entity |
50
|
|
$ 50
|
|
$ 53
|
| Secured debt of variable interest entity |
307
|
|
307
|
|
|
| Cost of electric fuel and purchased power |
(28)
|
(27)
|
(62)
|
(66)
|
|
| Operation and maintenance |
4
|
3
|
23
|
13
|
|
| Depreciation and amortization |
8
|
7
|
25
|
19
|
|
| Total operating expenses |
(16)
|
(17)
|
(14)
|
(34)
|
|
| Operating income |
16
|
17
|
14
|
34
|
|
| Interest expense |
(5)
|
(5)
|
(15)
|
(14)
|
|
| Income (loss) before income taxes/Net income (loss) |
11
|
12
|
(1)
|
20
|
|
| (Earnings) losses attributable to noncontrolling interest |
(11)
|
(12)
|
1
|
(20)
|
|
| Earnings attributable to common shares |
$ 0
|
$ 0
|
$ 0
|
$ 0
|
|