Other Commitments And Contingencies (Existence and Expiration of Commercial Commitments) (Details)
$ in Millions |
Jun. 30, 2015
USD ($)
|
| Other Commitments and Contingencies [Line Items] |
|
| Guarantor Obligations, Maximum Exposure, Undiscounted |
$ 2,770.0
|
| Guarantee Obligations Maximum Exposure Year One |
20.0
|
| Guarantee Obligations Maximum Exposure Year Two |
0.0
|
| Guarantee Obligations Maximum Exposure Year Three |
0.0
|
| Guarantee Obligations Maximum Exposure Year Four |
500.0
|
| Guarantee Obligations Maximum Exposure Year Five |
0.0
|
| Guarantee Obligations Maximum Exposure Thereafter |
2,250.0
|
| Guarantee of Indebtedness of Others [Member] |
|
| Other Commitments and Contingencies [Line Items] |
|
| Guarantor Obligations, Maximum Exposure, Undiscounted |
2,750.0
|
| Guarantee Obligations Maximum Exposure Year One |
0.0
|
| Guarantee Obligations Maximum Exposure Year Two |
0.0
|
| Guarantee Obligations Maximum Exposure Year Three |
0.0
|
| Guarantee Obligations Maximum Exposure Year Four |
500.0
|
| Guarantee Obligations Maximum Exposure Year Five |
0.0
|
| Guarantee Obligations Maximum Exposure Thereafter |
2,250.0
|
| Line of Credit [Member] |
|
| Other Commitments and Contingencies [Line Items] |
|
| Guarantor Obligations, Maximum Exposure, Undiscounted |
20.0
|
| Guarantee Obligations Maximum Exposure Year Two |
0.0
|
| Guarantee Obligations Maximum Exposure Year Three |
0.0
|
| Guarantee Obligations Maximum Exposure Year Four |
0.0
|
| Guarantee Obligations Maximum Exposure Year Five |
0.0
|
| Guarantee Obligations Maximum Exposure Thereafter |
0.0
|
| Line of Credit [Member] |
|
| Other Commitments and Contingencies [Line Items] |
|
| Guarantor Obligations, Maximum Exposure, Undiscounted |
$ 20.0
|