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Commitments and Contingencies (Tables)
6 Months Ended
Jun. 30, 2011
Letters of Credit and Guarantees
Tampa Electric Co [Member]
 
Letters of Credit and Guarantees
(millions)                                   

Letters of Credit for the Benefit of:

   2011      2012-2015      After  (1)
2015
     Total      Liabilities Recognized
at Jun. 30, 2011
 

Tampa Electric

              

Letters of credit

   $ 0.0       $ 0.0       $ 0.7       $ 0.7       $ 0.2   
                                            

Total

   $ 0.0       $ 0.0       $ 0.7       $ 0.7       $ 0.2   
                                            

 

(1) These letters of credit renew annually and are shown on the basis that they will continue to renew beyond 2015.