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12/31/2010
USD ($)
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12/31/2009
USD ($)
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-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 157
-Paragraph 32
-Subparagraph a
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12/31/2010
USD ($)
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-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 157
-Paragraph 32
-Subparagraph a
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Available-for-sale municipal bonds are carried at fair value and are included in the above tables. However, held-to-maturity municipal bonds are carried at amortized cost and excluded from the above tables. 229Fair Value (Distribution of Financial Instruments, Measured at Fair Value on a Recurring Basis) (Details) (USD $)MillionsUnKnownUnKnownUnKnownfalsetrue
