CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (Unaudited) (USD $) In Millions, unless otherwise specified	3 Months Ended
	Mar. 31, 2014		Mar. 31, 2013
Net income (loss)	$ 316		$ 413
Amounts arising during the period - gains (losses), net of tax (expense) benefit:
Foreign currency translation adjustments, net of tax	131		(245)
Available-for-sale securities, net of tax	5		23
Qualifying derivatives, net of tax	(46)		62
Reclassifications from accumulated other comprehensive income (loss) - (gains) losses, net of tax expense (benefit):
Available-for-sale securities, net of tax	(1)		(1)
Qualifying derivatives, net of tax	19		(80)
Defined benefit plans:
Prior service costs, net of tax	1		1
Net actuarial loss, net of tax	27		34
Total other comprehensive income (loss)	136		(206)
Comprehensive income (loss) attributable to Shareowners	452		207
PPL Energy Supply LLC [Member]
Net income (loss)	(66)		(38)
Amounts arising during the period - gains (losses), net of tax (expense) benefit:
Available-for-sale securities, net of tax	5		23
Reclassifications from accumulated other comprehensive income (loss) - (gains) losses, net of tax expense (benefit):
Available-for-sale securities, net of tax	(1)		(1)
Qualifying derivatives, net of tax	(5)		(30)
Defined benefit plans:
Prior service costs, net of tax	1		1
Net actuarial loss, net of tax	1		4
Total other comprehensive income (loss)	1		(3)
Comprehensive income (loss) attributable to Shareowners	(65)		(41)
PPL Electric Utilities Corp [Member]
Net income (loss)	85	[1]	64	[1]
LG And E And KU Energy LLC [Member]
Net income (loss)	115	[1]	96	[1]
Defined benefit plans:
Total other comprehensive income (loss)	(1)		(1)
Louisville Gas And Electric Co [Member]
Net income (loss)	52	[2]	44	[2]
Kentucky Utilities Co [Member]
Net income (loss)	77	[1]	64	[1]
Defined benefit plans:
Total other comprehensive income (loss)	$ (1)

[1] Net income approximates comprehensive income.

[2] Net income equals comprehensive income.