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Other Income (Expense) - net	9 Months Ended
Other Income (Expense) - net	Sep. 30, 2015
Other Income (Expense) Net [Abstract]
Other Income (Expense) - net	12. Other Income (Expense) - net (PPL) "Other Income (Expense) - net" for the three and nine months ended September 30, 2015 and 2014 consisted primarily of gains on foreign currency exchange contracts to economically hedge the earnings translation risk of WPD’s earnings denominated in British pound sterling. See Note 14 for additional information on these derivatives.