Investments (Details) (USD $) In Millions	6 Months Ended	12 Months Ended
Jun. 30, 2011	Dec. 31, 2010	Dec. 31, 2009
Investments [Abstract]
Land Held for sale	$ 87.3	$ 86.0	$ 74.9
Additions during period:
Deeds to Collateralized Property	1.6	9.9
Capitalized Improvements and Other	0	1.2
Deductions during period: Cost of Real Estate Sold	(0.3)	0
Long-Term Finance Receivables	2.1	3.7
Other	3.3	4.3
Total Real Estate Assets	92.7	94.0
Available-for-sale Securities	30.5	25.2
Other investments	5.8	6.8
Total Investments	129.0	126.0
Allowance for long-term receivables [Roll forward]
Additional Reserve	0.1
Allowance for long-term receivables	$ 0.9	$ 0.8

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The current amount of expenditures for capital improvements of land held for resale during the period.

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The reduction in the balance of land held-for-resale as a result of the selling off of some of the holdings.

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Deeds as the result of an entity filing Chapter 11 bankruptcy recorded at fair value.

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Other increase (decrease) during the period in the value of land held-for-resale.

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Total real estate assets owned.

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Reflects the sum for the period of the additions and reductions to the loan loss reserve, which when added to the opening balance of the reserve will agree to the ending balance in the reserve.

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A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

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Investments in debt and equity securities which are categorized neither as held-to-maturity nor trading and which are intended to be sold or mature more than one year from the balance sheet date or operating cycle, if longer. Such securities are reported at fair value; unrealized gains (losses) related to Available-for-sale Securities are excluded from earnings and reported in a separate component of shareholders' equity (other comprehensive income), unless the Available-for-sale security is designated as a hedge or is determined to have had an other than temporary decline in fair value below its amortized cost basis. All or a portion of the unrealized holding gain (loss) of an Available-for-sale security that is designated as being hedged in a fair value hedge is recognized in earnings during the period of the hedge, as are other than temporary declines in fair value below the cost basis for investments in equity securities and debt securities that an entity intends to sell or it is more likely than not that it will be required to sell before the recovery of its amortized cost basis. Other than temporary declines in fair value below the cost basis for debt securities categorized as Available-for-sale that an entity does not intend to sell and for which it is not more likely than not that the entity will be required to sell before the recovery of its amortized cost basis are bifurcated into credit losses and losses related to all other factors. Other than temporary declines in fair value below cost basis related to credit losses are recognized in earnings, and losses related to all other factors are recognized in other comprehensive income.

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Land held for sale recorded at cost.

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The allowance for loan and lease losses represents the reserve to cover probable credit losses related to specifically identified loans and leases, as well as probable credit losses inherent in the remainder of the loan portfolio as of the balance sheet date. For banks, include currently required allocated transfer risk reserves. Include carryover of or adjustments to the allowance for loan losses in connection with business combinations determined to be appropriate.

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Reflects the aggregate carrying amount of all categories of loans and leases held in portfolio, net of unearned income and the allowance for losses on loans and leases.

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Other investments not otherwise specified in the taxonomy.

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Other long-term investments not otherwise specified in the taxonomy, not including investments in marketable securities.

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