CONDENSED CONSOLIDATED STATEMENTS OF EQUITY (Unaudited) (Parenthetical) (USD $) In Millions, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2011	Sep. 30, 2010	Sep. 30, 2011	Sep. 30, 2010
Vote per share of PPL's common stock	1	1	1	1
Shares of PPL common stock issued under a public equity offering (in shares)	92.0	103.5	92.0	103.5
Present value of the purchase Contract component of the Equity Units			$ 123	$ 157
Issuance costs related to the Equity Units allocated to capital in excess of par, net of tax			18	19
Amount paid to redeem PPL Electric's preferred stock which was reflected as Non-controlling Interest by PPL			0	54
PPL Electric [Member]
Amount paid to redeem PPL Electric's preferred stock which was reflected as Non-controlling Interest by PPL			$ 0	$ 54