| Data di fine periodo | 2014-12-31 | 2014-09-30 | 2014-06-30 | 2014-03-31 | 2013-12-31 |
|---|---|---|---|---|---|
| Durata del periodo | 3 mesi | 3 mesi | 3 mesi | 3 mesi | 3 mesi |
| Revenues | 0.60%1,881.20 | 1,892.50 | 1,677.60 | 2,290.60 | 1,777.70 |
| Operating Expenses | 0.04%1,451.00 | 1,451.62 | 1,383.62 | 1,822.90 | 1,417.10 |
| Interest Income/Expense | 0.18%89.90 | 89.74 | 92.50 | 89.98 | - |
| Benefits Costs and Expenses | - | - | - | - | - |
| Costs And Expenses | 0.04%1,451.00 | 1,451.60 | 1,383.60 | 1,822.90 | 1,417.10 |
| Operating Income/Loss | 2.43%430.20 | 440.90 | 294.00 | 467.70 | 360.60 |
| Nonoperating Income/Loss | 53.08%5.57 | 11.86 | 5.53 | 1.67 | - |
| Income/Loss From Continuing Operations Before Tax | 0.60%1,881.20 | 1,892.50 | 1,677.60 | 2,290.60 | 1,777.70 |
| Income Tax Expense/Benefit, Deferred | 653.42%378.50 | -68.39 | -4.27 | 137.42 | - |
| Income Tax Expense/Benefit | 3.24%122.44 | 126.54 | 77.77 | 141.55 | - |
| Income/Loss From Continuing Operations After Tax | 5.45%223.60 | 236.50 | 129.20 | 237.80 | 179.20 |
5.45%223.60 | 236.50 | 129.20 | 237.80 | 179.20 | |
| Attributable To Parent | 5.45%223.60 | 236.50 | 129.20 | 237.80 | 179.20 |
| Available To Common Stockholders, Basic | 5.58%221.50 | 234.60 | 127.40 | 236.00 | 177.40 |
| Preferred Stock Dividends And Other Adjustments | 10.53%2.10 | 1.90 | 1.80 | 1.80 | 1.80 |
| Attributable To Noncontrolling Interest | 100.00%- | 1.88 | 1.88 | 1.88 | - |
| Basic Average Shares | 99.94%0.19 | 316.34 | 315.95 | 315.53 | - |
| Diluted Average Shares | 99.93%0.23 | 317.55 | 317.11 | 316.89 | - |
| Participating Securities, Distributed And Undistributed Earnings/Loss, Basic | 10.53%2.10 | 1.90 | 1.80 | 1.80 | 1.80 |
