v2.4.0.8
Other Commitments And Contingencies (Existence And Expiration Of Commercial Commitments) (Details) (USD $)
In Millions, unless otherwise specified
Jun. 30, 2013
Other Commitments And Contingencies [Line Items]  
2013 $ 425.0
2014 554.4
2015 524.2
2016 291.5
2017 507.0
After 5,418.1
Total 7,720.2
Guarantees Of Subsidiaries Debt [Member]
 
Other Commitments And Contingencies [Line Items]  
2013 0
2014 500.0
2015 480.0
2016 291.5
2017 507.0
After 5,357.0
Total 7,135.5
Guarantees Supporting Energy Commodity Transactions Of Subsidiaries [Member]
 
Other Commitments And Contingencies [Line Items]  
2013 11.3
2014 0
2015 25.0
2016 0
2017 0
After 0.7
Total 37.0
Accounts Receivable Securitization [Member]
 
Other Commitments And Contingencies [Line Items]  
2013 260.1
2014 0
2015 0
2016 0
2017 0
After 0
Total 260.1
Lines Of Credit [Member]
 
Other Commitments And Contingencies [Line Items]  
2013 117.6
2014 0
2015 0
2016 0
2017 0
After 0
Total 117.6
Letters Of Credit [Member]
 
Other Commitments And Contingencies [Line Items]  
2013 12.4
2014 10.0
2015 16.2
2016 0
2017 0
After 0
Total 38.6
Other Guarantees [Member]
 
Other Commitments And Contingencies [Line Items]  
2013 23.6
2014 44.4
2015 3.0
2016 0
2017 0
After 60.4
Total $ 131.4