SCHEDULE I - PPL CORPORATION CONDENSED UNCONSOLIDATED STATEMENTS OF INCOME (Details) (USD $) In Millions, except Share data in Thousands, unless otherwise specified	3 Months Ended																12 Months Ended
	Dec. 31, 2011		Sep. 30, 2011		Jun. 30, 2011		Mar. 31, 2011		Dec. 31, 2010		Sep. 30, 2010		Jun. 30, 2010		Mar. 31, 2010		Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2009
Operating Revenues [Abstract]
Operating Revenues	$ 4,218	[1]	$ 3,120	[1]	$ 2,489	[1]	$ 2,910	[1]	$ 1,863	[1]	$ 2,179	[1]	$ 1,473	[1]	$ 3,006	[1]	$ 12,737	$ 8,521	$ 7,449
Operating Expenses [Abstract]
Other operation and maintenance																	2,667	1,756	1,418
Total Operating Expenses																	9,636	6,655	6,553
Operating Income (Loss)	934	[1]	767	[1]	595	[1]	805	[1]	642	[1]	522	[1]	226	[1]	476	[1]	3,101	1,866	896
Other Income (Expense) - net [Abstract]
Other income (expense)																	127	39	74
Other Income (Expense) - net																	4	(31)	47
Interest Expense - net																	898	593	387
Income Tax Expense (Benefit)																	691	263	105
Net Income Attributable to Company	454	[1]	444	[1]	196	[1]	401	[1]	355	[1]	248	[1]	85	[1]	250	[1]	1,495	938	407
Net Income Available to PPL Corporation Common Shareowners:
Basic (in dollars per share)	$ 0.78	[1],[2]	$ 0.76	[1],[2]	$ 0.35	[1],[2]	$ 0.82	[1],[2]	$ 0.73	[1],[2]	$ 0.51	[1],[2]	$ 0.22	[1],[2]	$ 0.66	[1],[2]	$ 2.71	$ 2.17	$ 1.08
Diluted (in dollars per share)	$ 0.78	[1],[2]	$ 0.76	[1],[2]	$ 0.35	[1],[2]	$ 0.82	[1],[2]	$ 0.73	[1],[2]	$ 0.51	[1],[2]	$ 0.22	[1],[2]	$ 0.66	[1],[2]	$ 2.70	$ 2.17	$ 1.08
Weighted-Average Shares of Common Stock Outstanding (in thousands)
Basic																	550,395	431,345	376,082
Diluted																	550,952	431,569	376,406
PPL Corp [Member]
Operating Expenses [Abstract]
Other operation and maintenance																	0	4	0
Total Operating Expenses																	0	4	0
Operating Income (Loss)																	0	(4)	0
Other Income (Expense) - net [Abstract]
Equity in earnings of subsidiaries																	1,562	1,038	378
Other income (expense)																	(25)	(60)	3
Other Income (Expense) - net																	1,537	978	381
Interest Expense - net																	76	80	(39)
Income Before Income Taxes																	1,461	894	420
Income Tax Expense (Benefit)																	(34)	(44)	13
Net Income Attributable to Company																	$ 1,495	$ 938	$ 407
Net Income Available to PPL Corporation Common Shareowners:
Basic (in dollars per share)																	$ 2.71	$ 2.17	$ 1.08
Diluted (in dollars per share)																	$ 2.70	$ 2.17	$ 1.08
Weighted-Average Shares of Common Stock Outstanding (in thousands)
Basic																	550,395	431,345	376,082
Diluted																	550,952	431,569	376,406

[1] Quarterly results can vary depending on, among other things, weather and the forward pricing of power. In addition, earnings in 2011 and 2010 were affected by special items. Accordingly, comparisons among quarters of a year may not be indicative of overall trends and changes in operations.

[2] 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.