CONDENSED CONSOLIDATED STATEMENTS OF EQUITY (Unaudited) - USD ($) $ in Millions		Total	Common Stock [Member]		Additional Paid-in Capital [Member]	Earnings Reinvested [Member]	Accumulated Other Comprehensive Loss [Member]	PPL Electric Utilities Corp [Member]		PPL Electric Utilities Corp [Member] Common Stock [Member]		PPL Electric Utilities Corp [Member] Additional Paid-in Capital [Member]	PPL Electric Utilities Corp [Member] Earnings Reinvested [Member]	LG And E And KU Energy LLC [Member]		Louisville Gas And Electric Co [Member]		Louisville Gas And Electric Co [Member] Common Stock [Member]		Louisville Gas And Electric Co [Member] Additional Paid-in Capital [Member]	Louisville Gas And Electric Co [Member] Earnings Reinvested [Member]	Kentucky Utilities Co [Member]		Kentucky Utilities Co [Member] Common Stock [Member]		Kentucky Utilities Co [Member] Additional Paid-in Capital [Member]	Kentucky Utilities Co [Member] Earnings Reinvested [Member]
Dividends Declared Per Share of Common Stock (in dollars per share)		$ 0.8200
Balance at beginning of period - shares at Dec. 31, 2017			693,398,000	[1]						66,368,000	[2]							21,294,000	[3]					37,818,000	[4]
Balance at beginning of period at Dec. 31, 2017		$ 10,761	$ 7		$ 10,305	$ 3,871	$ (3,422)	$ 3,992		$ 364		$ 2,729	$ 899			$ 2,527		$ 424		$ 1,712	$ 391	$ 3,357		$ 308		$ 2,616	$ 433
Balance at beginning of period at Dec. 31, 2017														$ 4,563
Common stock shares issued	[1]		5,730,000
Common stock issued		163			163
Stock-based compensation		(6)			(6)
Net Income		967				967		223	[5]				223	228	[6]	122	[7]				122	148	[8]				148
Capital contributions from parent								425				425				43				43		45				45
Dividends and dividend equivalents	[9]	(572)				(572)
Dividends declared on common stock								(222)					(222)			(81)					(81)	(136)					(136)
Distributions to member														(161)
Other comprehensive income (loss)		(73)					(73)							2
Balance at end of period - shares at Jun. 30, 2018			699,128,000	[1]						66,368,000	[2]							21,294,000	[3]					37,818,000	[4]
Balance at end of period at Jun. 30, 2018		$ 11,240	$ 7		10,462	4,266	(3,495)	4,418		$ 364		3,154	900			2,611		$ 424		1,755	432	3,414		$ 308		2,661	445
Balance at end of period at Jun. 30, 2018														4,632
Dividends Declared Per Share of Common Stock (in dollars per share)		$ 0.4100
Balance at beginning of period - shares at Mar. 31, 2018			697,383,000	[1]						66,368,000	[2]							21,294,000	[3]					37,818,000	[4]
Balance at beginning of period at Mar. 31, 2018		$ 11,176	$ 7		10,411	4,037	(3,279)	4,068		$ 364		2,729	975			2,565		$ 424		1,712	429	3,365		$ 308		2,616	441
Balance at beginning of period at Mar. 31, 2018														4,637
Common stock shares issued	[1]		1,745,000
Common stock issued		48			48
Stock-based compensation		3			3
Net Income		515				515		75	[5]				75	86	[6]	50	[5]				50	61	[8]				61
Capital contributions from parent								425				425				43				43		45				45
Dividends and dividend equivalents	[9]	(286)				(286)
Dividends declared on common stock								(150)					(150)			(47)					(47)	(57)					(57)
Distributions to member														(92)
Other comprehensive income (loss)		(216)					(216)							1
Balance at end of period - shares at Jun. 30, 2018			699,128,000	[1]						66,368,000	[2]							21,294,000	[3]					37,818,000	[4]
Balance at end of period at Jun. 30, 2018		$ 11,240	$ 7		10,462	4,266	(3,495)	$ 4,418		$ 364		3,154	900			$ 2,611		$ 424		1,755	432	$ 3,414		$ 308		2,661	445
Balance at end of period at Jun. 30, 2018														4,632
Dividends Declared Per Share of Common Stock (in dollars per share)		$ 0.8250
Balance at beginning of period - shares at Dec. 31, 2018		720,323,000	720,323,000	[1]				66,368,000		66,368,000	[2]					21,294,000		21,294,000	[3]			37,818,000		37,818,000	[4]
Balance at beginning of period at Dec. 31, 2018		$ 11,657	$ 7		11,021	4,593	(3,964)	$ 4,461		$ 364		3,158	939			$ 2,687		$ 424		1,795	468	$ 3,442		$ 308		2,661	473
Balance at beginning of period at Dec. 31, 2018														4,723
Common stock shares issued		0	1,517,000	[1]
Common stock issued		$ 47			47
Stock-based compensation		1			1
Net Income		907				907		215	[5]				215	230	[6]	108	[7]				108	142	[8]				142
Capital contributions from parent																25				25		68				68
Contributions from member														63
Dividends and dividend equivalents	[9]	(597)				(597)
Dividends declared on common stock								$ (215)					(215)			$ (71)					(71)	$ (91)					(91)
Distributions to member														(137)
Other comprehensive income (loss)		$ (32)					(32)							(2)
Balance at end of period - shares at Jun. 30, 2019		721,840,000	721,840,000	[1]				66,368,000		66,368,000	[2]					21,294,000		21,294,000	[3]			37,818,000		37,818,000	[4]
Balance at end of period at Jun. 30, 2019		$ 11,983	$ 7		11,069	4,903	(3,996)	$ 4,461		$ 364		3,158	939			$ 2,749		$ 424		1,820	505	$ 3,561		$ 308		2,729	524
Balance at end of period at Jun. 30, 2019														4,877
Dividends Declared Per Share of Common Stock (in dollars per share)		$ 0.4125
Balance at beginning of period - shares at Mar. 31, 2019			721,371,000	[1]						66,368,000	[2]							21,294,000	[3]					37,818,000	[4]
Balance at beginning of period at Mar. 31, 2019		$ 12,172	$ 7		11,051	4,761	(3,647)	4,462		$ 364		3,158	940			2,721		$ 424		1,795	502	3,512		$ 308		2,689	515
Balance at beginning of period at Mar. 31, 2019														4,791
Common stock shares issued	[1]		469,000
Common stock issued		15			15
Stock-based compensation		3			3
Net Income		441				441		94	[5]				94	106	[6]	44	[5]				44	61	[8]				61
Capital contributions from parent																25				25		40				40
Contributions from member														63
Dividends and dividend equivalents	[9]	(299)				(299)
Dividends declared on common stock								$ (95)					(95)			$ (41)					(41)	$ (52)					(52)
Distributions to member														(81)
Other comprehensive income (loss)		$ (349)					(349)							(2)
Balance at end of period - shares at Jun. 30, 2019		721,840,000	721,840,000	[1]				66,368,000		66,368,000	[2]					21,294,000		21,294,000	[3]			37,818,000		37,818,000	[4]
Balance at end of period at Jun. 30, 2019		$ 11,983	$ 7		$ 11,069	$ 4,903	$ (3,996)	$ 4,461		$ 364		$ 3,158	$ 939			$ 2,749		$ 424		$ 1,820	$ 505	$ 3,561		$ 308		$ 2,729	$ 524
Balance at end of period at Jun. 30, 2019														$ 4,877

[1] Shares in thousands. Each share entitles the holder to one vote on any question presented at any shareowners' meeting.

[2] Shares in thousands. All common shares of PPL Electric stock are owned by PPL.

[3] Shares in thousands. All common shares of LG&E stock are owned by LKE.

[4] Shares in thousands. All common shares of KU stock are owned by LKE.

[5] Net income equals comprehensive income.

[6] Net income approximates comprehensive income.

[7] Net income equals comprehensive income.

[8] Net income equals comprehensive income.

[9] Dividends declared per share of common stock were $0.4125 and $0.8250 for the three and six months ended June 30, 2019 and $0.4100 and $0.8200 for the three and six months ended June 30, 2018.