CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (Unaudited) - USD ($) $ in Millions		3 Months Ended
		Mar. 31, 2016	Mar. 31, 2015
Net income		$ 481	$ 647
Amounts arising during the period - gains (losses), net of tax (expense) benefit:
Foreign currency translation adjustments, net of tax		(464)	(66)
Available-for-sale securities, net of tax		0	5
Qualifying derivatives, net of tax		80	6
Defined benefit plans:
Net actuarial gain (loss), net of tax		0	(1)
Reclassifications from accumulated other comprehensive income (loss) - (gains) losses, net of tax expense (benefit):
Available-for-sale securities, net of tax		0	(1)
Qualifying derivatives, net of tax		(78)	(17)
Equity investee's other comprehensive (income) loss, net of tax		0	(1)
Defined benefit plans:
Net actuarial loss, net of tax		31	38
Total other comprehensive income (loss)		(431)	(37)
Comprehensive income		50	610
PPL Electric Utilities Corp [Member]
Net income	[1]	94	87
LG And E And KU Energy LLC [Member]
Net income	[2]	120	117
Defined benefit plans:
Total other comprehensive income (loss)		1
Louisville Gas And Electric Co [Member]
Net income	[1]	56	53
Kentucky Utilities Co [Member]
Net income	[2]	$ 75	78
Defined benefit plans:
Total other comprehensive income (loss)			$ (1)

[1] Net income equals comprehensive income.

[2] Net income approximates comprehensive income.