ACQUISITION AND DIVESTITURE ACTIVITY - ASSETS HELD FOR SALE (Details)
$ in Millions |
1 Months Ended |
3 Months Ended |
6 Months Ended |
9 Months Ended |
|
Feb. 29, 2016
MW
|
Sep. 30, 2016
USD ($)
|
Jun. 30, 2016
USD ($)
|
Sep. 30, 2016
USD ($)
|
| Assets Held for Sale [Line Items] |
|
|
|
|
| Impairment of equity method investment |
|
|
|
$ 131
|
| Impairment of equity method investment after-tax |
|
|
|
111
|
| Sempra Mexico [Member] | TdM [Member] |
|
|
|
|
| Assets Held for Sale [Line Items] |
|
|
|
|
| Power generating capacity | MW |
625
|
|
|
|
| Impairment of equity method investment |
|
$ 131
|
|
|
| Impairment of equity method investment after-tax |
|
111
|
|
|
| Deferred tax expense from the outside basis difference |
|
|
$ 32
|
|
| Deferred Tax Benefit From The Outside Basis Difference |
|
31
|
|
|
| Sempra Mexico [Member] | Disposal Group, Held-for-sale, Not Discontinued Operations [Member] | TdM [Member] |
|
|
|
|
| Assets Held for Sale, Assets [Abstract] |
|
|
|
|
| Cash and cash equivalents |
|
1
|
|
1
|
| Inventories |
|
8
|
|
8
|
| Other current assets |
|
25
|
|
25
|
| Deferred income taxes |
|
5
|
|
5
|
| Other assets |
|
22
|
|
22
|
| Property, plant and equipment, net |
|
120
|
|
120
|
| Total assets held for sale |
|
181
|
|
181
|
| Assets Held for Sale, Liabilities [Abstract] |
|
|
|
|
| Accounts payable |
|
1
|
|
1
|
| Other current liabilities |
|
7
|
|
7
|
| Asset retirement obligations |
|
4
|
|
4
|
| Other liabilities |
|
23
|
|
23
|
| Total liabilities held for sale |
|
$ 35
|
|
$ 35
|