v3.6.0.2
CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($)
shares in Thousands, $ in Millions
 12 Months Ended
Dec. 31, 2016
Dec. 31, 2015
Dec. 31, 2014
Regulated and Unregulated Operating Revenue [Abstract]      
Utilities $ 9,261 $ 9,254 $ 9,758
Energy-related businesses 922 977 1,277
Total revenues 10,183 10,231 11,035
Utilities [Abstract]      
Cost of electric fuel and purchased power (2,188) (2,136) (2,281)
Cost of natural gas (1,067) (1,134) (1,758)
Energy-related businesses [Abstract]      
Cost of natural gas, electric fuel and purchased power (277) (335) (552)
Other cost of sales (322) (148) (163)
Operation and maintenance (2,970) (2,886) (2,935)
Depreciation and amortization (1,312) (1,250) (1,156)
Franchise fees and other taxes (426) (423) (408)
Impairment losses (153) (9) 0
Plant closure adjustment (loss) 0 26 (6)
Gain on sale of assets 134 70 62
Operating expenses      
Impairment losses 153 9 0
Equity earnings, before income tax 6 104 81
Remeasurement of equity method investment 617 0 0
Other income, net 132 126 137
Interest income 26 29 22
Interest expense (553) (561) (554)
Income before income taxes 1,830 1,704 1,524
Income tax (expense) benefit (389) (341) (300)
Equity earnings, net of income tax 78 85 38
Net income 1,519 1,448 1,262
Losses (earnings) attributable to noncontrolling interest (148) (98) (100)
Preferred dividends of subsidiary (1) (1) (1)
Net income/Earnings $ 1,370 $ 1,349 $ 1,161
Earnings Per Share, Basic [Abstract]      
Basic earnings per common share (in dollars per share) $ 5.48 $ 5.43 $ 4.72
Weighted-average number of shares outstanding, basic 250,217 248,249 245,891
Earnings Per Share, Diluted [Abstract]      
Diluted earnings per common share (in dollars per share) $ 5.46 $ 5.37 $ 4.63
Weighted-average number of shares outstanding, diluted 251,155 250,923 250,655
San Diego Gas and Electric Company [Member]      
Operating revenues      
Electric $ 3,754 $ 3,719 $ 3,785
Natural gas 499 500 544
Total operating revenues 4,253 4,219 4,329
Operating expenses      
Cost of electric fuel and purchased power 1,187 1,151 1,309
Cost of natural gas 127 153 208
Operation and maintenance 1,048 1,017 1,076
Depreciation and amortization 646 604 530
Franchise fees and other taxes 255 262 241
Plant closure (adjustment) loss 0 (26) 6
Total operating expenses 3,263 3,161 3,370
Operating income 990 1,058 959
Other income, net 50 36 40
Interest expense (195) (204) (202)
Income before income taxes 845 890 797
Income tax (expense) benefit (280) (284) (270)
Net income 565 606 527
Losses (earnings) attributable to noncontrolling interest 5 (19) (20)
Net income/Earnings 570 587 507
Southern California Gas Company [Member]      
Operating revenues      
Total operating revenues 3,471 3,489 3,855
Energy-related businesses [Abstract]      
Impairment losses (22) (9) 0
Operating expenses      
Cost of natural gas 891 921 1,449
Operation and maintenance 1,385 1,361 1,321
Depreciation and amortization 476 461 431
Franchise fees and other taxes 140 129 133
Impairment losses 22 9 0
Total operating expenses 2,914 2,881 3,334
Operating income 557 608 521
Other income, net 32 30 20
Interest income 1 4 0
Interest expense (97) (84) (69)
Income before income taxes 493 558 472
Income tax (expense) benefit (143) (138) (139)
Net income 350 420 333
Net income/Earnings 350 420 333
Preferred dividend requirements (1) (1) (1)
Earnings attributable to common shares $ 349 $ 419 $ 332