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)		$ 1.23
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]		26,304,000
Common stock issued		699			699
Stock-based compensation		(3)			(3)
Net Income		1,412				1,412		334	[5]				334	358	[6]	188	[7]				188	225	[8]				225
Capital contributions from parent								429				429				43				43		45				45
Dividends and dividend equivalents	[9]	(860)				(860)
Dividends declared on common stock								(271)					(271)			(113)					(113)	(196)					(196)
Distributions to member														(217)
Other comprehensive income (loss)		(226)					(226)							4
Balance at end of period - shares at Sep. 30, 2018			719,702,000	[1]						66,368,000	[2]							21,294,000	[3]					37,818,000	[4]
Balance at end of period at Sep. 30, 2018		$ 11,783	$ 7		11,001	4,423	(3,648)	4,484		$ 364		3,158	962			2,645		$ 424		1,755	466	3,431		$ 308		2,661	462
Balance at end of period at Sep. 30, 2018														4,708
Dividends Declared Per Share of Common Stock (in dollars per share)		$ 0.4100
Balance at beginning 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 beginning 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 beginning of period at Jun. 30, 2018														4,632
Common stock shares issued	[1]		20,574,000
Common stock issued		536			536
Stock-based compensation		3			3
Net Income		445				445		111	[5]				111	130	[6]	66	[5]				66	77	[8]				77
Capital contributions from parent								4				4
Dividends and dividend equivalents	[9]	(288)				(288)
Dividends declared on common stock								(49)					(49)			(32)					(32)	(60)					(60)
Distributions to member														(56)
Other comprehensive income (loss)		(153)					(153)							2
Balance at end of period - shares at Sep. 30, 2018			719,702,000	[1]						66,368,000	[2]							21,294,000	[3]					37,818,000	[4]
Balance at end of period at Sep. 30, 2018		$ 11,783	$ 7		11,001	4,423	(3,648)	$ 4,484		$ 364		3,158	962			$ 2,645		$ 424		1,755	466	$ 3,431		$ 308		2,661	462
Balance at end of period at Sep. 30, 2018														4,708
Dividends Declared Per Share of Common Stock (in dollars per share)		$ 1.2375
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	1,984,000
Common stock issued		$ 61			61
Stock-based compensation		5			5
Net Income		1,382				1,382		333	[5]				333	388	[6]	188	[7]				188	237	[8]				237
Capital contributions from parent								400				400				25				25		68				68
Contributions from member														63
Dividends and dividend equivalents	[9]	(895)				(895)
Dividends declared on common stock								$ (276)					(276)			$ (130)					(130)	$ (167)					(167)
Distributions to member														(206)
Other comprehensive income (loss)		$ (308)					(308)							(2)
Balance at end of period - shares at Sep. 30, 2019		722,307,000	722,307,000	[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 Sep. 30, 2019		$ 11,902	$ 7		11,087	5,080	(4,272)	$ 4,918		$ 364		3,558	996			$ 2,770		$ 424		1,820	526	$ 3,580		$ 308		2,729	543
Balance at end of period at Sep. 30, 2019														4,966
Dividends Declared Per Share of Common Stock (in dollars per share)		$ 0.4125
Balance at beginning of period - shares at Jun. 30, 2019			721,840,000	[1]						66,368,000	[2]							21,294,000	[3]					37,818,000	[4]
Balance at beginning 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 beginning of period at Jun. 30, 2019														4,877
Common stock shares issued	[1]		467,000
Common stock issued		14			14
Stock-based compensation		4			4
Net Income		475				475		118	[5]				118	158	[6]	80	[5]				80	95	[8]				95
Capital contributions from parent								400				400
Dividends and dividend equivalents	[9]	(298)				(298)
Dividends declared on common stock								$ (61)					(61)			$ (59)					(59)	$ (76)					(76)
Distributions to member														(69)
Other comprehensive income (loss)		$ (276)					(276)
Balance at end of period - shares at Sep. 30, 2019		722,307,000	722,307,000	[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 Sep. 30, 2019		$ 11,902	$ 7		$ 11,087	$ 5,080	$ (4,272)	$ 4,918		$ 364		$ 3,558	$ 996			$ 2,770		$ 424		$ 1,820	$ 526	$ 3,580		$ 308		$ 2,729	$ 543
Balance at end of period at Sep. 30, 2019														$ 4,966

[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 $1.2375 for the three and nine months ended September 30, 2019 and $0.4100 and $1.23 for the three and nine months ended September 30, 2018.