CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (Unaudited) - USD ($) $ in Millions		6 Months Ended
		Jun. 30, 2021	Jun. 30, 2020
Cash Flows from Operating Activities
Net income (loss)		$ (1,821)	$ 898
Income (loss) from discontinued operations (net of income taxes) available to PPL common shareowners - Basic and Diluted		1,488	(541)
Income from continuing operations (net of income taxes)		(333)	357
Depreciation		536	505
Amortization		40	22
Deferred income taxes and investment tax credits		29	113
Impairment of solar panels		37	0
Loss on extinguishment of debt		322	0
Other		(9)	22
Change in current assets and current liabilities
Accounts payable		(26)	(81)
Unbilled revenues		53	61
Prepayments		(62)	(67)
Regulatory assets and liabilities, net		39	(47)
Taxes payable		192	(34)
Other		59	76
Other operating activities
Defined benefit plans - funding		(36)	(56)
Other assets		(70)	27
Other liabilities		24	(32)
Net cash provided by operating activities - continuing operations		795	866
Net cash provided by operating activities - discontinued operations		726	433
Net cash provided by operating activities		1,521	1,299
Cash Flows from Investing Activities
Expenditures for property, plant and equipment		(969)	(1,158)
Proceeds from sale of discontinued operations, net of cash divested		10,560	0
Other investing activities		(8)	9
Net cash provided by (used in) investing activities - continuing operations		9,583	(1,149)
Net cash provided by (used in) investing activities - discontinued operations		(607)	(424)
Net cash provided by (used in) investing activities		8,976	(1,573)
Cash Flows from Financing Activities
Issuance of long-term debt		650	1,598
Retirement of long-term debt		(2,379)	0
Proceeds from project financing		5	96
Issuance of common stock		0	33
Payment of common stock dividends		(640)	(636)
Issuance of term loan		0	300
Retirement of term loan		(300)	0
Retirement of commercial paper		(73)	0
Net increase (decrease) in short-term debt		(795)	(638)
Other financing activities		(24)	(23)
Net cash provided by (used in) financing activities - continuing operations		(3,556)	730
Net cash provided by (used in) financing activities - discontinued operations		(411)	(23)
Contributions (to) from discontinued operations		365	38
Net cash provided by (used in) financing activities		(3,602)	745
Effect of Exchange Rates on Cash, Cash Equivalents and Restricted Cash included in Discontinued Operations		8	(6)
Net (Increase) Decrease in Cash, Cash Equivalents and Restricted Cash included in Discontinued Operations		284	20
Net Increase (Decrease) in Cash, Cash Equivalents and Restricted Cash		7,187	485
Cash and Cash Equivalents at Beginning of Period		442
Cash, Cash Equivalents and Restricted Cash at Beginning of Period		443	660
Cash and Cash Equivalents at End of Period		7,629
Cash, Cash Equivalents and Restricted Cash at End of Period		7,630	1,145
Supplemental Disclosures of Cash Flow Information
Accrued expenditures for property, plant and equipment at June 30,		222	250
PPL Electric Utilities Corp [Member]
Cash Flows from Operating Activities
Net income (loss)	[1]	209	236
Depreciation		217	199
Amortization		10	13
Defined benefit plans - (income) expense		(5)	0
Deferred income taxes and investment tax credits		74	61
Other		(9)	4
Change in current assets and current liabilities
Accounts receivable		(74)	(19)
Accounts payable		(62)	(37)
Unbilled revenues		35	44
Fuel, materials and supplies		3	(15)
Prepayments		(56)	(59)
Regulatory assets and liabilities, net		61	(32)
Taxes payable		(9)	(11)
Other		(1)	(10)
Other operating activities
Defined benefit plans - funding		(21)	(21)
Other assets		(10)	5
Other liabilities		(8)	2
Net cash provided by operating activities		354	360
Cash Flows from Investing Activities
Expenditures for property, plant and equipment		(458)	(556)
Net (increase) decrease in notes receivable from affiliate		(1,075)	0
Other investing activities		0	(2)
Net cash provided by (used in) investing activities		(1,533)	(558)
Cash Flows from Financing Activities
Issuance of long-term debt		650	0
Payment of common stock dividends to parent		(201)	(246)
Net increase (decrease) in short-term debt		0	200
Contributions from parent		750	255
Return of capital to parent		0	(260)
Other financing activities		(2)	0
Net cash provided by (used in) financing activities		1,197	(51)
Net Increase (Decrease) in Cash, Cash Equivalents and Restricted Cash		18	(249)
Cash and Cash Equivalents at Beginning of Period		40
Cash, Cash Equivalents and Restricted Cash at Beginning of Period		40	264
Cash and Cash Equivalents at End of Period		58
Cash, Cash Equivalents and Restricted Cash at End of Period		58	15
Supplemental Disclosures of Cash Flow Information
Accrued expenditures for property, plant and equipment at June 30,		138	158
Louisville Gas And Electric Co [Member]
Cash Flows from Operating Activities
Net income (loss)	[2]	120	120
Depreciation		134	129
Amortization		4	4
Defined benefit plans - (income) expense		0	1
Deferred income taxes and investment tax credits		5	2
Change in current assets and current liabilities
Accounts receivable		10	18
Accounts receivable from affiliates		0	2
Accounts payable		8	(25)
Increase (Decrease) in Accounts Payable, Related Parties		(11)	(9)
Unbilled revenues		13	8
Fuel, materials and supplies		25	20
Regulatory assets and liabilities, net		(12)	4
Taxes payable		(7)	21
Accrued interest		1	0
Other		(17)	(9)
Other operating activities
Defined benefit plans - funding		(2)	(5)
Expenditures for asset retirement obligations		(15)	(8)
Other assets		(1)	(2)
Other liabilities		3	4
Net cash provided by operating activities		258	275
Cash Flows from Investing Activities
Expenditures for property, plant and equipment		(215)	(214)
Net cash provided by (used in) investing activities		(215)	(214)
Cash Flows from Financing Activities
Increase Decrease In Notes Payable To Affiliates		282	190
Retirement of commercial paper		(41)	0
Payment of common stock dividends to parent		(109)	(76)
Net increase (decrease) in short-term debt		(221)	(238)
Contributions from parent		44	53
Other financing activities		(1)	0
Net cash provided by (used in) financing activities		(46)	(71)
Cash and Cash Equivalents, Period Increase (Decrease)		(3)	(10)
Cash and Cash Equivalents at Beginning of Period		7	15
Cash and Cash Equivalents at End of Period		4	5
Supplemental Disclosures of Cash Flow Information
Accrued expenditures for property, plant and equipment at June 30,		44	49
Kentucky Utilities Co [Member]
Cash Flows from Operating Activities
Net income (loss)	[3]	142	133
Depreciation		179	170
Amortization		3	4
Defined benefit plans - (income) expense		(2)	0
Deferred income taxes and investment tax credits		0	5
Other		(1)	(1)
Change in current assets and current liabilities
Accounts receivable		5	15
Accounts receivable from affiliates		1	0
Accounts payable		(15)	(7)
Increase (Decrease) in Accounts Payable, Related Parties		(5)	(15)
Unbilled revenues		8	7
Fuel, materials and supplies		13	4
Regulatory assets and liabilities, net		(11)	(19)
Taxes payable		(7)	24
Accrued interest		0	1
Other		(19)	(12)
Other operating activities
Defined benefit plans - funding		(1)	(1)
Expenditures for asset retirement obligations		(18)	(23)
Other liabilities		8	8
Net cash provided by operating activities		280	293
Cash Flows from Investing Activities
Expenditures for property, plant and equipment		(270)	(264)
Net (increase) decrease in notes receivable from affiliate		0	(190)
Other investing activities		4	3
Net cash provided by (used in) investing activities		(266)	(451)
Cash Flows from Financing Activities
Issuance of long-term debt		0	498
Increase Decrease In Notes Payable To Affiliates		226	0
Retirement of commercial paper		(32)	0
Payment of common stock dividends to parent		(111)	(89)
Net increase (decrease) in short-term debt		(171)	(150)
Contributions from parent		60	37
Other financing activities		(1)	(5)
Net cash provided by (used in) financing activities		(29)	291
Cash and Cash Equivalents, Period Increase (Decrease)		(15)	133
Cash and Cash Equivalents at Beginning of Period		22	12
Cash and Cash Equivalents at End of Period		7	145
Supplemental Disclosures of Cash Flow Information
Accrued expenditures for property, plant and equipment at June 30,		$ 40	$ 41

[1] Net income equals comprehensive income.

[2] Net income equals comprehensive income.

[3] Net income equals comprehensive income.