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		$ 13,723	$ 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)		$ 0.425
Balance at beginning of period - shares at Dec. 31, 2021			735,112	[1]								66,368	[2]					21,294	[3]					37,818	[4]
Common stock shares issued	[1]		123
Common stock issued		$ 12			12
Stock Issued During Period, Value, Treasury Stock Reissued		27						$ 27
Stock Issued During Period, Shares, Treasury Stock Reissued								922
Stock-based compensation		(2)			(2)
Net income (loss)		392				392				267	[5]				267	147	[6]				147	173	[7]				173
Capital contributions from parent																10				10		60				60
Dividends and dividend equivalents	[8]	(315)				(315)
Dividends declared										(165)					(165)	(136)					(136)	(159)					(159)
Other comprehensive income		33					33
Balance at end of period - shares at Jun. 30, 2022			736,157	[1]								66,368	[2]					21,294	[3]					37,818	[4]
Contributions from parent										0						10						60
Return of Capital to Parent										(65)				(65)
Preferred stock		3
Total Equity		$ 13,865	$ 8		12,299	2,697	(152)	$ (987)	0	5,767		$ 364		4,214	1,189	3,097		$ 424		1,997	676	3,945		$ 308		2,957	680
Dividends Declared Per Share of Common Stock (in dollars per share)		$ 0.225
Balance at beginning of period - shares at Mar. 31, 2022			735,765									66,368	[2]					21,294	[3]					37,818	[4]
Common stock issued		$ 8			8
Stock Issued During Period, Value, Treasury Stock Reissued		11						$ 11
Stock Issued During Period, Shares, Treasury Stock Reissued								392
Stock-based compensation		6			6
Net income (loss)		119				119				124	[5]				124	54	[6]				54	66	[7]				66
Capital contributions from parent																10				10		60				60
Dividends and dividend equivalents		(167)				(167)
Dividends declared										(93)					(93)	(61)					(61)	(69)					(69)
Other comprehensive income		28					28
Balance at end of period - shares at Jun. 30, 2022			736,157	[1]								66,368	[2]					21,294	[3]					37,818	[4]
Return of Capital to Parent										(25)				(25)
Preferred stock		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
Total Equity		$ 13,918	$ 8		12,317	2,681	(124)	(967)	3	$ 5,751		$ 364		4,084	1,303	$ 3,166		$ 424		2,087	655	$ 4,038		$ 308		3,041	689
Dividends Declared Per Share of Common Stock (in dollars per share)		$ 0.480
Balance at beginning of period - shares at Dec. 31, 2022		736,487	736,487	[1]						66,368		66,368	[2]			21,294		21,294	[3]			37,818		37,818	[4]
Balance at beginning of period at Dec. 31, 2022		$ 13,915
Stock Issued During Period, Value, Treasury Stock Reissued		21			3			$ 18
Stock Issued During Period, Shares, Treasury Stock Reissued								599
Stock-based compensation		(4)			(4)
Net income (loss)		397				397				$ 248	[5]				248	$ 131	[6]				131	$ 139	[7]				139
Capital contributions from parent										200				200						20						54
Dividends and dividend equivalents	[8]	(357)				(357)
Dividends declared										$ (163)					(163)	$ (86)					(86)	$ (92)					(92)
Other comprehensive income		$ (13)					(13)
Balance at end of period - shares at Jun. 30, 2023		737,086	737,086							66,368		66,368	[2]			21,294		21,294	[3]			37,818		37,818	[4]
Balance at end of period at Jun. 30, 2023		$ 13,959
Contributions from parent										$ 200						$ 20						$ 54
Return of Capital to Parent										(25)				(25)						(120)						(54)
Noncontrolling Interest, Decrease from Redemptions or Purchase of Interests									(3)
Total Equity		$ 14,036	$ 8		12,310	2,788	(123)	$ (950)	3	6,015		$ 364		4,284	1,367	3,101		$ 424		1,967	710	4,037		$ 308		2,987	742
Dividends Declared Per Share of Common Stock (in dollars per share)		$ 0.240
Balance at beginning of period - shares at Mar. 31, 2023			737,067									66,368	[2]					21,294	[3]					37,818	[4]
Stock Issued During Period, Value, Treasury Stock Reissued		$ 2			1			$ 1
Treasury stock acquired								19
Stock-based compensation		5			5
Net income (loss)		112				112				110	[5]				110	45	[6]				45	51	[7]				51
Capital contributions from parent																20				20		54				54
Dividends and dividend equivalents		(179)				(179)
Dividends declared										$ (89)					(89)	$ (55)					(55)	$ (57)					(57)
Other comprehensive income		$ (14)					(14)
Balance at end of period - shares at Jun. 30, 2023		737,086	737,086							66,368		66,368	[2]			21,294		21,294	[3]			37,818		37,818	[4]
Balance at end of period at Jun. 30, 2023		$ 13,959
Return of Capital to Parent										$ (25)				(25)
Noncontrolling Interest, Decrease from Redemptions or Purchase of Interests									(3)
Total Equity		$ 13,959	$ 8		$ 12,316	$ 2,721	$ (137)	$ (949)	$ 0	$ 6,011		$ 364		$ 4,259	$ 1,388	$ 3,111		$ 424		$ 1,987	$ 700	$ 4,085		$ 308		$ 3,041	$ 736

[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 $0.240 and $0.480 for the three and six months ended June 30, 2023 and $0.225 and $0.425 for the three and six months ended June 30, 2022.