Statements of Consolidated Income (Parentheticals) (USD $) In Millions, unless otherwise specified	3 Months Ended			9 Months Ended
	Sep. 30, 2013		Sep. 30, 2012	Sep. 30, 2013		Sep. 30, 2012
Accumulated other comprehensive income reclassifications related to VEBA adjustments	$ 1.3		$ 1.8	$ 4.1		$ 5.4
Reclassification of unrealized gain upon sale of available for sale securities	0.2	[1]	0	0.8	[1]	0
Other comprehensive income reclassification adjustment, tax	$ (0.5)		$ (0.7)	$ (1.3)		$ (2.1)

[1] Amounts reclassified out of Accumulated other comprehensive income relating to sales of available for sale securities were included as a component of Other (expense) income, net. The Company uses the specific identification method to determine the amount reclassified out of accumulated other comprehensive income.