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Consolidated Statements of Income (USD $) In Millions, except Per Share data, unless otherwise specified | 3 Months Ended
--- | ---
Mar. 31, 2013 | Mar. 31, 2012
Operating revenue | $ 2,632 | $ 2,415
Fuel | 73 | 77
Purchased power | 780 | 615
Operation and maintenance | 873 | 946
Depreciation, decommissioning and amortization | 414 | 388
Total operating expenses | 2,140 | 2,026
Operating income | 492 | 389
Interest and other income | 34 | 34
Interest expense | (131) | (126)
Other expenses | (11) | (10)
Income from continuing operations before income taxes | 384 | 287
Income tax expense | 98 | 91
Income from continuing operations | 286 | 196
Income (loss) from discontinued operations, net of tax | 12 | (84)
Net income | 298 | 112
Dividends on preferred and preference stock of utility | 27 | 19
Net income attributable to common shareholders | 271 | 93
Amounts attributable to common shareholders: |  |
Income from continuing operations, net of tax | 259 | 177
Income (loss) from discontinued operations, net of tax | 12 | (84)
Net income attributable to common shareholders | 271 | 93
Basic earnings (loss) per common share attributable to Edison International common shareholders: |  |
Weighted-average shares of common stock outstanding (in shares) | 326 | 326
Continuing operations (in dollars per share) | $ 0.79 | $ 0.54
Discontinued operations (in dollars per share) | $ 0.04 | $ (0.26)
Total (in dollars per share) | $ 0.83 | $ 0.28
Diluted earnings (loss) per common share attributable to Edison International common shareholders: |  |
Weighted-average shares of common stock outstanding, including effect of dilutive securities (in shares) | 329 | 329
Continuing operations (in dollars per share) | $ 0.78 | $ 0.54
Discontinued operations (in dollars per share) | $ 0.04 | $ (0.26)
Total (in dollars per share) | $ 0.82 | $ 0.28
Dividends declared per common share (in dollars per share) | $ 0.3375 | $ 0.325
Southern California Edison |  |
Operating revenue | 2,629 | 2,412
Fuel | 73 | 77
Purchased power | 780 | 615
Operation and maintenance | 785 | 851
Depreciation, decommissioning and amortization | 414 | 389
Property and other taxes | 79 | 83
Total operating expenses | 2,131 | 2,015
Operating income | 498 | 397
Interest and other income | 32 | 33
Interest expense | (125) | (121)
Other expenses | (10) | (9)
Income from continuing operations before income taxes | 395 | 300
Income tax expense | 112 | 99
Net income | 283 | 201
Dividends on preferred and preference stock of utility | 27 | 19
Net income attributable to common shareholders | 256 | 182
Amounts attributable to common shareholders: |  |
Net income attributable to common shareholders | $ 256 | $ 182

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