CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (Unaudited) - USD ($) $ in Millions		3 Months Ended
		Mar. 31, 2018	Mar. 31, 2017
Net Income		$ 452	$ 403
Amounts arising during the period - gains (losses), net of tax (expense) benefit:
Foreign currency translation adjustments, net of tax		116	(24)
Qualifying derivatives, net of tax		(20)	(6)
Defined benefit plans:
Net actuarial gain (loss), net of tax		(1)	0
Reclassifications from AOCI - (gains) losses, net of tax expense (benefit):
Qualifying derivatives, net of tax		12	(1)
Defined benefit plans:
Net actuarial (gain) loss, net of tax		36	32
Total other comprehensive income		143	1
Comprehensive income		595	404
LG And E And KU Energy LLC [Member]
Net Income	[1]	142	103
Defined benefit plans:
Total other comprehensive income		$ 1	$ 2

[1] Net income approximates comprehensive income.