CONDENSED CONSOLIDATED STATEMENTS OF EQUITY (Unaudited) - USD ($) $ in Millions		Total	Cumulative Effect, Period of Adoption, Adjustment	Common Stock [Member]		Additional Paid-in Capital [Member]	Earnings Reinvested [Member]	Earnings Reinvested [Member] Cumulative Effect, Period of Adoption, Adjustment	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)		$ 0.8250
Balance at beginning of period - shares at Dec. 31, 2018				720,323,000	[1]							66,368,000	[2]							21,294,000	[3]					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	[1]			1,517,000
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
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	[1]							66,368,000	[2]							21,294,000	[3]					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
Contributions from parent										0								25						68
Proceeds from Contributed Capital																63
Contributions Made To Limited Liability Company LLC																63
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								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				469,000
Common stock issued		15				15
Stock-based compensation		3				3
Net Income		441					441			94	[5]				94	106	[6]	44	[7]				44	61	[8]				61
Capital contributions from parent																		25				25		40				40
Dividends and dividend equivalents		(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	[1]							66,368,000	[2]							21,294,000	[3]					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
Contributions Made To Limited Liability Company LLC																63
Dividends Declared Per Share of Common Stock (in dollars per share)		$ 0.8300
Balance at beginning of period - shares at Dec. 31, 2019		767,233,000		767,233,000	[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, 2019		$ 12,991		$ 8		12,214	5,127		(4,358)	$ 4,832		$ 364		3,558	910			$ 2,762		$ 424		1,820	518	$ 3,574		$ 308		2,729	537
Balance at beginning of period at Dec. 31, 2019																4,942
Common stock shares issued		0		1,550,000
Common stock issued		$ 47				47
Stock-based compensation		(6)				(6)
Net Income		898					898			236	[5]				236	218	[6]	120	[7]				120	133	[8]				133
Capital contributions from parent										255				255				53				53		37				37
Dividends and dividend equivalents	[9]	(640)					(640)
Dividends declared on common stock										$ (246)					(246)			$ (76)					(76)	$ (89)					(89)
Distributions to member																(140)
Other comprehensive income (loss)		$ (244)							(244)							2
Balance at end of period - shares at Jun. 30, 2020		768,783,000		768,783,000						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, 2020		$ 13,044		$ 8		12,255	5,383		(4,602)	$ 4,817		$ 364		3,553	900			$ 2,859		$ 424		1,873	562	$ 3,655		$ 308		2,766	581
Balance at end of period at Jun. 30, 2020																5,022
Contributions from parent										255								53						37
Proceeds from Contributed Capital																0
Return of Capital to Parent										(260)				(260)
Dividends Declared Per Share of Common Stock (in dollars per share)		$ 0.4150
Balance at beginning of period - shares at Mar. 31, 2020				768,266,000								66,368,000	[2]							21,294,000	[3]					37,818,000	[4]
Balance at beginning of period at Mar. 31, 2020		$ 13,241		$ 8		12,239	5,360		(4,366)	4,785		$ 364		3,558	863			2,831		$ 424		1,845	562	3,654		$ 308		2,766	580
Balance at beginning of period at Mar. 31, 2020																5,026
Common stock shares issued				517,000
Common stock issued		13				13
Stock-based compensation		3				3
Net Income		344					344			118	[5]				118	83		47	[7]				47	53	[8]				53
Capital contributions from parent										255				255				28				28
Dividends and dividend equivalents		(321)					(321)
Dividends declared on common stock										$ (81)					(81)			$ (47)					(47)	$ (52)					(52)
Distributions to member																(88)
Other comprehensive income (loss)		$ (236)							(236)							1
Balance at end of period - shares at Jun. 30, 2020		768,783,000		768,783,000						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, 2020		$ 13,044		$ 8		$ 12,255	$ 5,383		$ (4,602)	$ 4,817		$ 364		3,553	$ 900			$ 2,859		$ 424		$ 1,873	$ 562	$ 3,655		$ 308		$ 2,766	$ 581
Balance at end of period at Jun. 30, 2020																$ 5,022
Return of Capital to Parent										$ (260)				$ (260)
Cumulative Effect of New Accounting Principle in Period of Adoption			$ (2)					$ (2)

[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 $0.4150 and $0.8300 for the three and six months ended June 30, 2020 and $0.4125 and $0.8250 for the three and six months ended June 30, 2019.