v3.6.0.2

SIGNIFICANT ACCOUNTING POLICIES AND OTHER FINANCIAL DATA - CHANGES IN ACCUMULATED OTHER COMPREHENSIVE INCOME (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2016 | Dec. 31, 2015 | Dec. 31, 2014
Accumulated Other Comprehensive Income (Loss) [Line Items] |  |  |
Beginning Balance | $ 11,809 |  |
Amounts reclassified from AOCI | 18 | $ 18 | $ 20
Ending Balance | 12,951 | 11,809 |
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward] |  |  |
Sale of noncontrolling interests, net of offering costs | 1,701 |  |
Foreign currency translation adjustments [Member] |  |  |
Accumulated Other Comprehensive Income (Loss) [Line Items] |  |  |
Beginning Balance | (582) | (322) | (129)
OCI before reclassifications | 42 | (260) | (193)
Amounts reclassified from AOCI | 13 | 0 | 0
Total other comprehensive income (loss) | 55 | (260) | (193)
Ending Balance | (527) | (582) | (322)
Financial instruments [Member] |  |  |
Accumulated Other Comprehensive Income (Loss) [Line Items] |  |  |
Beginning Balance | (137) | (90) | (26)
OCI before reclassifications | (7) | (57) | (70)
Amounts reclassified from AOCI | 19 | 10 | 6
Total other comprehensive income (loss) | 12 | (47) | (64)
Ending Balance | (125) | (137) | (90)
Pension and other postretirement benefits [Member] |  |  |
Accumulated Other Comprehensive Income (Loss) [Line Items] |  |  |
Beginning Balance | (87) | (85) | (73)
OCI before reclassifications | (15) | (10) | (26)
Amounts reclassified from AOCI | 6 | 8 | 14
Total other comprehensive income (loss) | (9) | (2) | (12)
Ending Balance | (96) | (87) | (85)
Accumulated other comprehensive income (loss) [Member] |  |  |
Accumulated Other Comprehensive Income (Loss) [Line Items] |  |  |
Beginning Balance | (806) | (497) | (228)
OCI before reclassifications | 20 | (327) | (289)
Amounts reclassified from AOCI | 38 | 18 | 20
Total other comprehensive income (loss) | 58 | (309) | (269)
Ending Balance | (748) | (806) | (497)
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward] |  |  |
Sale of noncontrolling interests, net of offering costs | 20 |  |
Parent Company [Member] |  |  |
Accumulated Other Comprehensive Income (Loss) [Line Items] |  |  |
Beginning Balance | 11,809 |  |
Ending Balance | 12,951 | 11,809 |
San Diego Gas and Electric Company [Member] |  |  |
Accumulated Other Comprehensive Income (Loss) [Line Items] |  |  |
Beginning Balance | 5,223 |  |
Amounts reclassified from AOCI | 1 | 1 | 2
Ending Balance | 5,641 | 5,223 |
San Diego Gas and Electric Company [Member] | Pension and other postretirement benefits [Member] |  |  |
Accumulated Other Comprehensive Income (Loss) [Line Items] |  |  |
Beginning Balance | (8) | (12) | (9)
OCI before reclassifications | (1) | 3 | (5)
Amounts reclassified from AOCI | 1 | 1 | 2
Total other comprehensive income (loss) | 0 | 4 | (3)
Ending Balance | (8) | (8) | (12)
San Diego Gas and Electric Company [Member] | Accumulated other comprehensive income (loss) [Member] |  |  |
Accumulated Other Comprehensive Income (Loss) [Line Items] |  |  |
Beginning Balance | (8) | (12) | (9)
OCI before reclassifications | (1) | 3 | (5)
Amounts reclassified from AOCI | 1 | 1 | 2
Total other comprehensive income (loss) | 0 | 4 | (3)
Ending Balance | (8) | (8) | (12)
Southern California Gas Company [Member] |  |  |
Accumulated Other Comprehensive Income (Loss) [Line Items] |  |  |
Beginning Balance | 3,149 |  |
Amounts reclassified from AOCI | 1 | 0 | 3
Ending Balance | 3,510 | 3,149 |
Southern California Gas Company [Member] | Financial instruments [Member] |  |  |
Accumulated Other Comprehensive Income (Loss) [Line Items] |  |  |
Beginning Balance | (14) | (14) | (14)
OCI before reclassifications | 0 | 0 | 0
Amounts reclassified from AOCI | 1 |  | 0
Total other comprehensive income (loss) | 1 | 0 | 0
Ending Balance | (13) | (14) | (14)
Southern California Gas Company [Member] | Pension and other postretirement benefits [Member] |  |  |
Accumulated Other Comprehensive Income (Loss) [Line Items] |  |  |
Beginning Balance | (5) | (4) | (4)
OCI before reclassifications | (4) | (1) | (3)
Amounts reclassified from AOCI | 0 | 0 | 3
Total other comprehensive income (loss) | (4) | (1) | 0
Ending Balance | (9) | (5) | (4)
Southern California Gas Company [Member] | Accumulated other comprehensive income (loss) [Member] |  |  |
Accumulated Other Comprehensive Income (Loss) [Line Items] |  |  |
Beginning Balance | (19) | (18) | (18)
OCI before reclassifications | (4) | (1) | (3)
Amounts reclassified from AOCI | 1 |  | 3
Total other comprehensive income (loss) | (3) | (1) | 0
Ending Balance | $ (22) | $ (19) | $ (18)

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