SCHEDULE I - CONDENSED UNCONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Millions	3 Months Ended																12 Months Ended
	Dec. 31, 2016	[1]	Sep. 30, 2016	[1]	Jun. 30, 2016	[1]	Mar. 31, 2016	[1]	Dec. 31, 2015	[1]	Sep. 30, 2015	[1]	Jun. 30, 2015	[1]	Mar. 31, 2015	[1]	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Operating Revenues [Abstract]
Operating Revenues	$ 1,832		$ 1,889		$ 1,785		$ 2,011		$ 1,780		$ 1,878		$ 1,781		$ 2,230		$ 7,517	$ 7,669	$ 7,852
Operating Expenses [Abstract]
Other operation and maintenance																	1,745	1,938	1,856
Total Operating Expenses																	4,469	4,838	4,985
Operating Income (Loss)	714		786		725		823		617		686		638		890		3,048	2,831	2,867
Other Income (Expense) - net [Abstract]
Other Income (Expense) - net																	390	108	105
Interest Expense																	888	871	843
Income (Loss) Before Income Taxes																	2,550	2,068	2,129
Income Tax Expense (Benefit)																	648	465	692
Net income	$ 465		$ 473		$ 483		$ 481		$ 399		$ 393		$ (757)	[2]	$ 647		1,902	682	1,737
Comprehensive Income (Loss)																	$ 852	$ 252	$ 1,028
Net Income Available to PPL Corporation Common Shareowners: (in dollars per share)
Basic	$ 0.68	[3]	$ 0.70	[3]	$ 0.71	[3]	$ 0.71	[3]	$ 0.59	[3]	$ 0.58	[3]	$ (1.13)	[3]	$ 0.97	[3]	$ 2.80	$ 1.01	$ 2.64
Diluted	$ 0.68	[3]	$ 0.69	[3]	$ 0.71	[3]	$ 0.71	[3]	$ 0.59	[3]	$ 0.58	[3]	$ (1.13)	[3]	$ 0.96	[3]	$ 2.79	$ 1.01	$ 2.61
Weighted-Average Shares of Common Stock Outstanding (in thousands)
Basic																	677,592	669,814	653,504
Diluted																	680,446	672,586	665,973
PPL Corp [Member]
Operating Revenues [Abstract]
Operating Revenues																	$ 0	$ 0	$ 0
Operating Expenses [Abstract]
Other operation and maintenance																	2	9	16
Total Operating Expenses																	2	9	16
Operating Income (Loss)																	(2)	(9)	(16)
Other Income (Expense) - net [Abstract]
Equity in earnings of subsidiaries																	1,915	711	1,776
Other income (expense)																	(1)	(15)	(18)
Other Income (Expense) - net																	1,914	696	1,758
Interest Expense																	8	9	15
Interest Expense with Affiliates																	10	10	10
Income (Loss) Before Income Taxes																	1,894	668	1,717
Income Tax Expense (Benefit)																	(8)	(14)	(20)
Net income																	1,902	682	1,737
Comprehensive Income (Loss)																	$ 852	$ 252	$ 1,028
Net Income Available to PPL Corporation Common Shareowners: (in dollars per share)
Basic																	$ 2.80	$ 1.01	$ 2.64
Diluted																	$ 2.79	$ 1.01	$ 2.61
Weighted-Average Shares of Common Stock Outstanding (in thousands)
Basic																	677,592	669,814	653,504
Diluted																	680,446	672,586	665,973
L G And E And K U Energy L L C Unconsolidated [Member]
Other Income (Expense) - net [Abstract]
Equity in earnings of subsidiaries																	$ 452	$ 390	$ 368
Interest Income from Affiliate																	9	4	5
Other Income (Expense) - net																	461	394	373
Interest Expense																	29	39	41
Interest Expense with Affiliates																	18	5	3
Income (Loss) Before Income Taxes																	414	350	329
Income Tax Expense (Benefit)																	(15)	(14)	(15)
Net income																	429	364	344
Comprehensive Income (Loss)																	$ 405	$ 363	$ 286

[1] Quarterly results can vary depending on, among other things, weather. Accordingly, comparisons among quarters of a year may not be indicative of overall trends and changes in operations.

[2] The second quarter of 2015 includes a loss of $879 million from the spinoff of PPL Energy Supply. See Note 8 to the Financial Statements for additional information.

[3] The sum of the quarterly amounts may not equal annual earnings per share due to changes in the number of common shares outstanding during the year or rounding.