v3.2.0.727
INVESTMENTS (Details)
$ in Millions
3 Months Ended 6 Months Ended
Jun. 30, 2015
USD ($)
MW
Jun. 30, 2014
USD ($)
Jun. 30, 2015
USD ($)
MW
Jun. 30, 2014
USD ($)
Dec. 31, 2014
USD ($)
Reconciliation of minority interest          
Noncontrolling interest beginning balance     $ 107.9    
Net income attributable to noncontrolling interest $ 1.3 $ 0.9 3.1 $ 1.9  
Other comprehensive income (loss) attributable to noncontrolling interest 1.7 2.3 3.0 (1.3)  
Distribution to noncontrolling interest     (8.4) (7.7)  
Noncontrolling interest ending balance $ 105.5   $ 105.5    
Several manufacturing joint ventures          
Investments and related party transactions          
Ownership interest (as a percent) 50.00%   50.00%    
RS Cogen          
Investments and related party transactions          
Ownership interest (as a percent) 50.00%   50.00%    
Production capacity of combined cycle natural gas-fired cogeneration facility in Lake Charles, Louisiana (in megawatt) | MW 425   425    
Future commitment per year to purchase electricity and steam from the joint venture     $ 23.5    
Aggregate future commitment to purchase electricity and steam from the joint venture $ 173.6   173.6    
Purchases under future commitment 6.4 6.2 12.9 12.4  
RS Cogen | Not a primary beneficiary | Chlorovinyls          
Maximum exposure to loss          
Investment in and advances to RS Cogen 8.8   8.8   $ 4.6
Supply contracts 37.5   37.5   38.5
Maximum exposure to loss $ 46.3   $ 46.3   $ 43.1
TCI          
Investments and related party transactions          
Ownership interest (as a percent) 60.00%   60.00%    
Reconciliation of minority interest          
Noncontrolling interest beginning balance     $ 107.9 119.4  
Net income attributable to noncontrolling interest     3.1 1.9  
Other comprehensive income (loss) attributable to noncontrolling interest     3.0 (1.3)  
Distribution to noncontrolling interest     (8.4) (7.7)  
Other     (0.1)    
Noncontrolling interest ending balance $ 105.5 $ 112.3 $ 105.5 $ 112.3