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Earnings Per Share (Reconciliation Of PG&E Corporation's Income Available For Common Shareholders And Weighted Average Common Shares Outstanding For Calculating Diluted EPS) (Detail) (USD $)
In Millions, except Per Share data, unless otherwise specified
3 Months Ended 6 Months Ended
Jun. 30, 2014
Jun. 30, 2013
Jun. 30, 2014
Jun. 30, 2013
Income available for common shareholders $ 267 $ 328 $ 494 $ 567
Weighted average common shares outstanding, basic 467 442 463 438
Employee share-based compensation 2 1 2 1
Weighted average common shares outstanding, diluted 469 443 465 439
Total earnings per common share, diluted $ 0.57 $ 0.74 $ 1.06 $ 1.29