CONDENSED CONSOLIDATED STATEMENTS OF EQUITY (Unaudited) - USD ($) shares in Thousands, $ in Millions		Total	Common Stock [Member]		Additional Paid-in Capital [Member]	Earnings Reinvested [Member]	Accumulated Other Comprehensive Loss [Member]	Treasury Stock, Common	Noncontrolling Interest	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]	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]
Total Equity		$ 13,373	$ 8		$ 12,270	$ 5,315	$ (4,220)	$ 0	$ 0	$ 5,124		$ 364		$ 3,753	$ 1,007	$ 2,948		$ 424		$ 1,923	$ 601	$ 3,782		$ 308		$ 2,857	$ 617
Dividends Declared Per Share of Common Stock (in dollars per share)		$ 1.245
Balance at beginning of period - shares at Dec. 31, 2020			768,907	[1]								66,368	[2]					21,294	[3]					37,818	[4]
Common stock shares issued	[1]		816
Common stock issued		$ 24			24
Stock Issued During Period, Value, Treasury Stock Reissued		(282)						$ (282)
Stock Issued During Period, Shares, Treasury Stock Reissued								(9,614)
Stock-based compensation		(4)			(4)
Net income (loss)		(1,614)				(1,614)				335	[5]				335	202	[6]				202	241	[7]				241
Capital contributions from parent										1,075				1,075		44				44		60				60
Dividends and dividend equivalents	[8]	(958)				(958)
Dividends declared										(251)					(251)	(139)					(139)	(186)					(186)
Other comprehensive income		4,037					4,037
Balance at end of period - shares at Sep. 30, 2021			760,109	[1]								66,368	[2]					21,294	[3]					37,818	[4]
Contributions from parent										1,075						44						60
Return of Capital to Parent										(500)				(500)
Total Equity		$ 14,952	$ 8		12,281	2,854	(191)	$ 0	0	5,882		$ 364		4,503	1,015	3,003		$ 424		1,967	612	3,873		$ 308		2,917	648
Dividends Declared Per Share of Common Stock (in dollars per share)		$ 0.415
Balance at beginning of period - shares at Jun. 30, 2021			769,564									66,368	[2]					21,294	[3]					37,818	[4]
Common stock shares issued			159
Common stock issued		$ 4			4
Stock Issued During Period, Value, Treasury Stock Reissued		(282)						$ (282)
Stock Issued During Period, Shares, Treasury Stock Reissued								(9,614)
Stock-based compensation		5			5
Net income (loss)		207				207				126	[5]				126	82	[6]				82	99	[7]				99
Capital contributions from parent										325				325
Dividends and dividend equivalents		(318)				(318)
Dividends declared										(50)					(50)	(30)					(30)	(75)					(75)
Other comprehensive income		8					8
Balance at end of period - shares at Sep. 30, 2021			760,109	[1]								66,368	[2]					21,294	[3]					37,818	[4]
Return of Capital to Parent										(500)				(500)
Total Equity		14,576	$ 8		12,290	2,743	(183)	$ (282)	0	5,783		$ 364		4,328	1,091	3,055		$ 424		1,967	664	3,897		$ 308		2,917	672
Total Equity		$ 13,723	$ 8		12,303	2,572	(157)	(1,003)	0	$ 5,736		$ 364		4,254	1,118	$ 3,079		$ 424		1,997	658	$ 3,928		$ 308		2,957	663
Dividends Declared Per Share of Common Stock (in dollars per share)		$ 0.650
Balance at beginning of period - shares at Dec. 31, 2021		735,112	735,112	[1]						66,368		66,368	[2]			21,294		21,294	[3]			37,818		37,818	[4]
Balance at beginning of period at Dec. 31, 2021		$ 13,723
Common stock shares issued			123
Common stock issued		12			12
Stock Issued During Period, Value, Treasury Stock Reissued		31						$ 31
Stock Issued During Period, Shares, Treasury Stock Reissued								1,076
Stock-based compensation		2			2
Net income (loss)		566				566				$ 410	[5]				410	$ 224	[6]				224	$ 268	[7]				268
Capital contributions from parent																10				10		60				60
Dividends and dividend equivalents	[8]	(480)				(480)
Dividends declared										$ (246)					(246)	$ (224)					(224)	$ (234)					(234)
Other comprehensive income		$ 27					27
Balance at end of period - shares at Sep. 30, 2022		736,311	736,311							66,368		66,368	[2]			21,294		21,294	[3]			37,818		37,818	[4]
Balance at end of period at Sep. 30, 2022		$ 13,881
Contributions from parent										$ 0						$ 10						$ 60
Return of Capital to Parent										(130)				(130)
Preferred stock		3							3
Total Equity		$ 13,873	$ 8		12,313	2,649	(124)	$ (976)	3	5,773		$ 364		4,189	1,220	3,100		$ 424		2,007	669	4,002		$ 308		3,017	677
Dividends Declared Per Share of Common Stock (in dollars per share)		$ 0.225
Balance at beginning of period - shares at Jun. 30, 2022			736,157									66,368	[2]					21,294	[3]					37,818	[4]
Common stock shares issued
Common stock issued		$ 0			0
Stock Issued During Period, Value, Treasury Stock Reissued		4						$ 4
Treasury stock acquired								154
Stock-based compensation		4			4
Net income (loss)		174				174				143	[5]				143	77	[6]				77	95	[7]				95
Dividends and dividend equivalents		(165)				(165)
Dividends declared										$ (81)					(81)	$ (88)					(88)	$ (75)					(75)
Other comprehensive income		$ (6)					(6)
Balance at end of period - shares at Sep. 30, 2022		736,311	736,311							66,368		66,368	[2]			21,294		21,294	[3]			37,818		37,818	[4]
Balance at end of period at Sep. 30, 2022		$ 13,881
Return of Capital to Parent										$ (65)				(65)
Total Equity		$ 13,884	$ 8		$ 12,317	$ 2,658	$ (130)	$ (972)	$ 3	$ 5,770		$ 364		$ 4,124	$ 1,282	$ 3,089		$ 424		$ 2,007	$ 658	$ 4,022		$ 308		$ 3,017	$ 697

[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 Energy Holdings.

[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 equals comprehensive income.

[7] Net income equals comprehensive income.

[8] Dividends declared per share of common stock were $0.225 and $0.650 for the three and nine months ended September 30, 2022 and $0.415 and $1.245 for the three and nine months ended September 30, 2021.