DERIVATIVE FINANCIAL INSTRUMENTS - BALANCE SHEET (Details) - USD ($)
|
Dec. 31, 2016 |
Dec. 31, 2015 |
| Current assets: Fixed-price contracts and other derivatives [Member] |
|
|
| Other Derivatives Not Designated as Hedging Instruments at Fair Value, Net [Abstract] |
|
|
| Net amount presented on balance sheet |
$ 41,000,000
|
$ 50,000,000
|
| Additional margin posted for commodity contracts not subject to rate recovery |
10,000,000
|
2,000,000
|
| Additional margin posted for commodity contracts subject to rate recovery |
32,000,000
|
28,000,000
|
| Total |
83,000,000
|
80,000,000
|
| Other assets: Sundry [Member] |
|
|
| Other Derivatives Not Designated as Hedging Instruments at Fair Value, Net [Abstract] |
|
|
| Net amount presented on balance sheet |
82,000,000
|
60,000,000
|
| Additional margin posted for commodity contracts not subject to rate recovery |
0
|
0
|
| Additional margin posted for commodity contracts subject to rate recovery |
0
|
0
|
| Total |
82,000,000
|
60,000,000
|
| Current liabilities: Fixed-price contracts and other derivatives [Member] |
|
|
| Other Derivatives Not Designated as Hedging Instruments at Fair Value, Net [Abstract] |
|
|
| Net amount presented on balance sheet |
(77,000,000)
|
(49,000,000)
|
| Additional margin posted for commodity contracts not subject to rate recovery |
0
|
0
|
| Additional margin posted for commodity contracts subject to rate recovery |
0
|
0
|
| Total |
(77,000,000)
|
(49,000,000)
|
| Deferred credits and other liabilities: Fixed-price contracts and other derivatives [Member] |
|
|
| Other Derivatives Not Designated as Hedging Instruments at Fair Value, Net [Abstract] |
|
|
| Net amount presented on balance sheet |
(364,000,000)
|
(193,000,000)
|
| Additional margin posted for commodity contracts not subject to rate recovery |
0
|
0
|
| Additional margin posted for commodity contracts subject to rate recovery |
0
|
0
|
| Total |
(364,000,000)
|
(193,000,000)
|
| Designated as Hedging Instrument [Member] | Current assets: Fixed-price contracts and other derivatives [Member] |
|
|
| Derivative Instruments in Hedges, at Fair Value, Net [Abstract] |
|
|
| Interest rate and foreign exchange instruments |
7,000,000
|
4,000,000
|
| Commodity contracts not subject to rate recovery |
0
|
13,000,000
|
| Designated as Hedging Instrument [Member] | Other assets: Sundry [Member] |
|
|
| Derivative Instruments in Hedges, at Fair Value, Net [Abstract] |
|
|
| Interest rate and foreign exchange instruments |
2,000,000
|
1,000,000
|
| Commodity contracts not subject to rate recovery |
0
|
0
|
| Designated as Hedging Instrument [Member] | Current liabilities: Fixed-price contracts and other derivatives [Member] |
|
|
| Derivative Instruments in Hedges, at Fair Value, Net [Abstract] |
|
|
| Interest rate and foreign exchange instruments |
(24,000,000)
|
(15,000,000)
|
| Commodity contracts not subject to rate recovery |
(14,000,000)
|
0
|
| Designated as Hedging Instrument [Member] | Deferred credits and other liabilities: Fixed-price contracts and other derivatives [Member] |
|
|
| Derivative Instruments in Hedges, at Fair Value, Net [Abstract] |
|
|
| Interest rate and foreign exchange instruments |
(228,000,000)
|
(156,000,000)
|
| Commodity contracts not subject to rate recovery |
0
|
0
|
| Not Designated as Hedging Instrument [Member] | Current assets: Fixed-price contracts and other derivatives [Member] |
|
|
| Other Derivatives Not Designated as Hedging Instruments at Fair Value, Net [Abstract] |
|
|
| Commodity contracts not subject to rate recovery |
248,000,000
|
245,000,000
|
| Associated offsetting commodity contracts not subject to rate recovery |
(242,000,000)
|
(232,000,000)
|
| Associated cash collateral commodity contracts not subject to rate recovery |
0
|
(6,000,000)
|
| Commodity contracts subject to rate recovery |
37,000,000
|
28,000,000
|
| Associated offsetting commodity contracts subject to rate recovery |
(9,000,000)
|
(2,000,000)
|
| Associated cash collateral commodity contracts subject to rate recovery |
0
|
0
|
| Not Designated as Hedging Instrument [Member] | Other assets: Sundry [Member] |
|
|
| Other Derivatives Not Designated as Hedging Instruments at Fair Value, Net [Abstract] |
|
|
| Commodity contracts not subject to rate recovery |
36,000,000
|
32,000,000
|
| Associated offsetting commodity contracts not subject to rate recovery |
(27,000,000)
|
(20,000,000)
|
| Associated cash collateral commodity contracts not subject to rate recovery |
(1,000,000)
|
0
|
| Commodity contracts subject to rate recovery |
73,000,000
|
49,000,000
|
| Associated offsetting commodity contracts subject to rate recovery |
(1,000,000)
|
(2,000,000)
|
| Associated cash collateral commodity contracts subject to rate recovery |
0
|
0
|
| Not Designated as Hedging Instrument [Member] | Current liabilities: Fixed-price contracts and other derivatives [Member] |
|
|
| Other Derivatives Not Designated as Hedging Instruments at Fair Value, Net [Abstract] |
|
|
| Commodity contracts not subject to rate recovery |
(254,000,000)
|
(239,000,000)
|
| Associated offsetting commodity contracts not subject to rate recovery |
242,000,000
|
232,000,000
|
| Associated cash collateral commodity contracts not subject to rate recovery |
16,000,000
|
4,000,000
|
| Commodity contracts subject to rate recovery |
(57,000,000)
|
(61,000,000)
|
| Associated offsetting commodity contracts subject to rate recovery |
9,000,000
|
2,000,000
|
| Associated cash collateral commodity contracts subject to rate recovery |
5,000,000
|
28,000,000
|
| Not Designated as Hedging Instrument [Member] | Deferred credits and other liabilities: Fixed-price contracts and other derivatives [Member] |
|
|
| Other Derivatives Not Designated as Hedging Instruments at Fair Value, Net [Abstract] |
|
|
| Commodity contracts not subject to rate recovery |
(28,000,000)
|
(21,000,000)
|
| Associated offsetting commodity contracts not subject to rate recovery |
27,000,000
|
20,000,000
|
| Associated cash collateral commodity contracts not subject to rate recovery |
1,000,000
|
0
|
| Commodity contracts subject to rate recovery |
(150,000,000)
|
(64,000,000)
|
| Associated offsetting commodity contracts subject to rate recovery |
1,000,000
|
2,000,000
|
| Associated cash collateral commodity contracts subject to rate recovery |
13,000,000
|
26,000,000
|
| San Diego Gas and Electric Company [Member] | Current assets: Fixed-price contracts and other derivatives [Member] |
|
|
| Other Derivatives Not Designated as Hedging Instruments at Fair Value, Net [Abstract] |
|
|
| Net amount presented on balance sheet |
27,000,000
|
25,000,000
|
| Additional margin posted for commodity contracts not subject to rate recovery |
1,000,000
|
1,000,000
|
| Additional margin posted for commodity contracts subject to rate recovery |
30,000,000
|
27,000,000
|
| Total |
58,000,000
|
53,000,000
|
| San Diego Gas and Electric Company [Member] | Other assets: Sundry [Member] |
|
|
| Other Derivatives Not Designated as Hedging Instruments at Fair Value, Net [Abstract] |
|
|
| Net amount presented on balance sheet |
72,000,000
|
47,000,000
|
| Additional margin posted for commodity contracts not subject to rate recovery |
0
|
0
|
| Additional margin posted for commodity contracts subject to rate recovery |
0
|
0
|
| Total |
72,000,000
|
47,000,000
|
| San Diego Gas and Electric Company [Member] | Current liabilities: Fixed-price contracts and other derivatives [Member] |
|
|
| Other Derivatives Not Designated as Hedging Instruments at Fair Value, Net [Abstract] |
|
|
| Net amount presented on balance sheet |
(55,000,000)
|
(44,000,000)
|
| Additional margin posted for commodity contracts not subject to rate recovery |
0
|
0
|
| Additional margin posted for commodity contracts subject to rate recovery |
0
|
0
|
| Total |
(55,000,000)
|
(44,000,000)
|
| San Diego Gas and Electric Company [Member] | Deferred credits and other liabilities: Fixed-price contracts and other derivatives [Member] |
|
|
| Other Derivatives Not Designated as Hedging Instruments at Fair Value, Net [Abstract] |
|
|
| Net amount presented on balance sheet |
(148,000,000)
|
(59,000,000)
|
| Additional margin posted for commodity contracts not subject to rate recovery |
0
|
0
|
| Additional margin posted for commodity contracts subject to rate recovery |
0
|
0
|
| Total |
(148,000,000)
|
(59,000,000)
|
| San Diego Gas and Electric Company [Member] | Designated as Hedging Instrument [Member] | Current assets: Fixed-price contracts and other derivatives [Member] |
|
|
| Derivative Instruments in Hedges, at Fair Value, Net [Abstract] |
|
|
| Interest rate and foreign exchange instruments |
0
|
0
|
| San Diego Gas and Electric Company [Member] | Designated as Hedging Instrument [Member] | Other assets: Sundry [Member] |
|
|
| Derivative Instruments in Hedges, at Fair Value, Net [Abstract] |
|
|
| Interest rate and foreign exchange instruments |
0
|
0
|
| San Diego Gas and Electric Company [Member] | Designated as Hedging Instrument [Member] | Current liabilities: Fixed-price contracts and other derivatives [Member] |
|
|
| Derivative Instruments in Hedges, at Fair Value, Net [Abstract] |
|
|
| Interest rate and foreign exchange instruments |
(13,000,000)
|
(14,000,000)
|
| San Diego Gas and Electric Company [Member] | Designated as Hedging Instrument [Member] | Deferred credits and other liabilities: Fixed-price contracts and other derivatives [Member] |
|
|
| Derivative Instruments in Hedges, at Fair Value, Net [Abstract] |
|
|
| Interest rate and foreign exchange instruments |
(12,000,000)
|
(23,000,000)
|
| San Diego Gas and Electric Company [Member] | Not Designated as Hedging Instrument [Member] | Current assets: Fixed-price contracts and other derivatives [Member] |
|
|
| Other Derivatives Not Designated as Hedging Instruments at Fair Value, Net [Abstract] |
|
|
| Commodity contracts not subject to rate recovery |
|
0
|
| Associated cash collateral commodity contracts not subject to rate recovery |
|
0
|
| Commodity contracts subject to rate recovery |
33,000,000
|
27,000,000
|
| Associated offsetting commodity contracts subject to rate recovery |
(6,000,000)
|
(2,000,000)
|
| Associated cash collateral commodity contracts subject to rate recovery |
0
|
0
|
| San Diego Gas and Electric Company [Member] | Not Designated as Hedging Instrument [Member] | Other assets: Sundry [Member] |
|
|
| Other Derivatives Not Designated as Hedging Instruments at Fair Value, Net [Abstract] |
|
|
| Commodity contracts not subject to rate recovery |
|
0
|
| Associated cash collateral commodity contracts not subject to rate recovery |
|
0
|
| Commodity contracts subject to rate recovery |
73,000,000
|
49,000,000
|
| Associated offsetting commodity contracts subject to rate recovery |
(1,000,000)
|
(2,000,000)
|
| Associated cash collateral commodity contracts subject to rate recovery |
0
|
0
|
| San Diego Gas and Electric Company [Member] | Not Designated as Hedging Instrument [Member] | Current liabilities: Fixed-price contracts and other derivatives [Member] |
|
|
| Other Derivatives Not Designated as Hedging Instruments at Fair Value, Net [Abstract] |
|
|
| Commodity contracts not subject to rate recovery |
|
(1,000,000)
|
| Associated cash collateral commodity contracts not subject to rate recovery |
|
1,000,000
|
| Commodity contracts subject to rate recovery |
(51,000,000)
|
(60,000,000)
|
| Associated offsetting commodity contracts subject to rate recovery |
6,000,000
|
2,000,000
|
| Associated cash collateral commodity contracts subject to rate recovery |
3,000,000
|
28,000,000
|
| San Diego Gas and Electric Company [Member] | Not Designated as Hedging Instrument [Member] | Deferred credits and other liabilities: Fixed-price contracts and other derivatives [Member] |
|
|
| Other Derivatives Not Designated as Hedging Instruments at Fair Value, Net [Abstract] |
|
|
| Commodity contracts not subject to rate recovery |
|
0
|
| Associated cash collateral commodity contracts not subject to rate recovery |
|
0
|
| Commodity contracts subject to rate recovery |
(150,000,000)
|
(64,000,000)
|
| Associated offsetting commodity contracts subject to rate recovery |
1,000,000
|
2,000,000
|
| Associated cash collateral commodity contracts subject to rate recovery |
13,000,000
|
26,000,000
|
| Southern California Gas Company [Member] | Current assets: Fixed-price contracts and other derivatives [Member] |
|
|
| Other Derivatives Not Designated as Hedging Instruments at Fair Value, Net [Abstract] |
|
|
| Net amount presented on balance sheet |
1,000,000
|
1,000,000
|
| Additional margin posted for commodity contracts not subject to rate recovery |
1,000,000
|
|
| Additional margin posted for commodity contracts subject to rate recovery |
2,000,000
|
1,000,000
|
| Total |
4,000,000
|
2,000,000
|
| Southern California Gas Company [Member] | Other assets: Sundry [Member] |
|
|
| Other Derivatives Not Designated as Hedging Instruments at Fair Value, Net [Abstract] |
|
|
| Net amount presented on balance sheet |
0
|
0
|
| Additional margin posted for commodity contracts not subject to rate recovery |
0
|
|
| Additional margin posted for commodity contracts subject to rate recovery |
0
|
0
|
| Total |
0
|
0
|
| Southern California Gas Company [Member] | Current liabilities: Fixed-price contracts and other derivatives [Member] |
|
|
| Other Derivatives Not Designated as Hedging Instruments at Fair Value, Net [Abstract] |
|
|
| Net amount presented on balance sheet |
(1,000,000)
|
(1,000,000)
|
| Additional margin posted for commodity contracts not subject to rate recovery |
0
|
|
| Additional margin posted for commodity contracts subject to rate recovery |
0
|
0
|
| Total |
(1,000,000)
|
(1,000,000)
|
| Southern California Gas Company [Member] | Deferred credits and other liabilities: Fixed-price contracts and other derivatives [Member] |
|
|
| Other Derivatives Not Designated as Hedging Instruments at Fair Value, Net [Abstract] |
|
|
| Net amount presented on balance sheet |
0
|
0
|
| Additional margin posted for commodity contracts not subject to rate recovery |
0
|
|
| Additional margin posted for commodity contracts subject to rate recovery |
0
|
0
|
| Total |
0
|
0
|
| Southern California Gas Company [Member] | Not Designated as Hedging Instrument [Member] | Current assets: Fixed-price contracts and other derivatives [Member] |
|
|
| Other Derivatives Not Designated as Hedging Instruments at Fair Value, Net [Abstract] |
|
|
| Commodity contracts not subject to rate recovery |
|
0
|
| Associated cash collateral commodity contracts not subject to rate recovery |
|
0
|
| Commodity contracts subject to rate recovery |
4,000,000
|
1,000,000
|
| Associated offsetting commodity contracts subject to rate recovery |
(3,000,000)
|
|
| Associated cash collateral commodity contracts subject to rate recovery |
0
|
|
| Southern California Gas Company [Member] | Not Designated as Hedging Instrument [Member] | Other assets: Sundry [Member] |
|
|
| Other Derivatives Not Designated as Hedging Instruments at Fair Value, Net [Abstract] |
|
|
| Commodity contracts not subject to rate recovery |
|
0
|
| Associated cash collateral commodity contracts not subject to rate recovery |
|
0
|
| Commodity contracts subject to rate recovery |
0
|
0
|
| Associated offsetting commodity contracts subject to rate recovery |
0
|
|
| Associated cash collateral commodity contracts subject to rate recovery |
0
|
|
| Southern California Gas Company [Member] | Not Designated as Hedging Instrument [Member] | Current liabilities: Fixed-price contracts and other derivatives [Member] |
|
|
| Other Derivatives Not Designated as Hedging Instruments at Fair Value, Net [Abstract] |
|
|
| Commodity contracts not subject to rate recovery |
|
(1,000,000)
|
| Associated cash collateral commodity contracts not subject to rate recovery |
|
1,000,000
|
| Commodity contracts subject to rate recovery |
(6,000,000)
|
(1,000,000)
|
| Associated offsetting commodity contracts subject to rate recovery |
3,000,000
|
|
| Associated cash collateral commodity contracts subject to rate recovery |
2,000,000
|
|
| Southern California Gas Company [Member] | Not Designated as Hedging Instrument [Member] | Deferred credits and other liabilities: Fixed-price contracts and other derivatives [Member] |
|
|
| Other Derivatives Not Designated as Hedging Instruments at Fair Value, Net [Abstract] |
|
|
| Commodity contracts not subject to rate recovery |
|
0
|
| Associated cash collateral commodity contracts not subject to rate recovery |
|
0
|
| Commodity contracts subject to rate recovery |
0
|
$ 0
|
| Associated offsetting commodity contracts subject to rate recovery |
0
|
|
| Associated cash collateral commodity contracts subject to rate recovery |
$ 0
|
|