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Goodwill
9 Months Ended
Sep. 30, 2014
Goodwill [Line Items]  
Goodwill
15. Goodwill
(PPL)
The changes in the carrying amounts of goodwill by segment were as follows.
U.K. RegulatedKentucky RegulatedSupplyTotal
Balance at December 31, 2013 (a)$ 3,143 $ 662 $ 420 $ 4,225
Allocation to discontinued operations (b) (82) (82)
Effect of foreign currency exchange rates 44 44
Balance at September 30, 2014 (a)$ 3,187 $ 662 $ 338 $ 4,187

(a) There were no accumulated impairment losses related to goodwill.

(b) Represents goodwill allocated to the Montana hydroelectric generating facilities which met the held for sale criteria at September 30, 2014. See Note 8 for additional information.

(PPL Energy Supply)

For PPL Energy Supply, the change in carrying amount of goodwill for the nine months ended September 30, 2014 was due to goodwill allocated to the Montana hydroelectric generating facilities which met the held for sale criteria at September 30, 2014. See Note 8 for additional information.

PPL Energy Supply LLC [Member]
 
Goodwill [Line Items]  
Goodwill
15. Goodwill
(PPL)
The changes in the carrying amounts of goodwill by segment were as follows.
U.K. RegulatedKentucky RegulatedSupplyTotal
Balance at December 31, 2013 (a)$ 3,143 $ 662 $ 420 $ 4,225
Allocation to discontinued operations (b) (82) (82)
Effect of foreign currency exchange rates 44 44
Balance at September 30, 2014 (a)$ 3,187 $ 662 $ 338 $ 4,187

(a) There were no accumulated impairment losses related to goodwill.

(b) Represents goodwill allocated to the Montana hydroelectric generating facilities which met the held for sale criteria at September 30, 2014. See Note 8 for additional information.

(PPL Energy Supply)

For PPL Energy Supply, the change in carrying amount of goodwill for the nine months ended September 30, 2014 was due to goodwill allocated to the Montana hydroelectric generating facilities which met the held for sale criteria at September 30, 2014. See Note 8 for additional information.