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Other Income (Expense) (Tables) | 6 Months Ended
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Jun. 30, 2011
Other Income (Expense) [Abstract] |
Other Income (Expense) |
| Quarter Ended | Six Months Ended
| June 30, | June 30,
| 2011 | 2010 | 2011 | 2010
Millions |  |  |  |
AFUDC - Equity | $0.5 | $0.9 | $1.1 | $2.1
Investment and Other Income | 0.5 | 1.3 | 0.7 | 1.1
Total Other Income | $1.0 | $2.2 | $1.8 | $3.2

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- Definition Tabular disclosure of the components of non-operating income or non-operating expense that may include amounts earned from dividends, interest on securities, gains (losses) on securities sold, equity earnings of unconsolidated affiliates, net gain (loss) on sales of business, interest expense and other miscellaneous income or expense items. + Details
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