CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (Unaudited) (USD $) In Millions, unless otherwise specified	3 Months Ended
	Mar. 31, 2015		Mar. 31, 2014
Net income (loss)	$ 647		$ 316
Amounts arising during the period - gains (losses), net of tax (expense) benefit:
Foreign currency translation adjustments, net of tax	(66)		131
Available-for-sale securities, net of tax	5		5
Qualifying derivatives, net of tax	6		(46)
Defined benefit plans:
Net actuarial gain (loss), net of tax	(1)		0
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	(17)		19
Equity investee's other comprehensive (income) loss, net of tax	(1)		0
Defined benefit plans:
Prior service costs, net of tax	0		1
Net actuarial loss, net of tax	38		27
Total other comprehensive income (loss)	(37)		136
Comprehensive income (loss) attributable to Shareowners	610		452
PPL Electric Utilities Corp [Member]
Net income (loss)	87	[1]	85	[1]
LG And E And KU Energy LLC [Member]
Net income (loss)	117	[1]	115	[1]
Louisville Gas And Electric Co [Member]
Net income (loss)	53	[2]	52	[2]
Kentucky Utilities Co [Member]
Net income (loss)	78	[1]	77	[1]
Defined benefit plans:
Total other comprehensive income (loss)	$ (1)		$ (1)

[1] Net income approximates comprehensive income.

[2] Net income equals comprehensive income.