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Statements of Consolidated Income (Parentheticals) (USD $) In Millions, unless otherwise specified | 3 Months Ended
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Mar. 31, 2013 | Mar. 31, 2012
Other comprehensive income reclassifications related to VEBA adjustments | $ 1.4 |  | $ 1.8
Reclassification of unrealized gain upon sale of available for sale securities | 0.4 | [1] | 0
Other comprehensive income reclassification adjustment, tax | $ (0.4) |  | $ (0.7)
[1] | Amounts reclassified out of Accumulated other comprehensive income relating to sales of available for sale securities were included as a component of Other income, net.

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