Note 3 Assets and Liabilities Associated with Deferred Compensation Measured at Fair Value (Details) (USD $) In Millions, unless otherwise specified	Dec. 31, 2011	Oct. 01, 2011
Fair Value of Deferred Compensation Assets and Liabilities [Line Items]
Assets and Liabilities Associated with Deferred Compensation Measured at Fair Value on a Recurring Basis	$ 10.0	$ 10.0