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Business And Summary Of Significant Accounting Policies (Narrative) (Details) (USD $) In Millions, unless otherwise specified	0 Months Ended	12 Months Ended
	May 11, 2010	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2009
Business And Summary Of Significant Account Policies [Abstract]
Stock split ratio, number of shares issued per share	2
Aggregate financing receivables		$ 133	$ 121
Charges associated with doubtful accounts		$ 40	$ 47	$ 43

Amount of the current period expense charged against operations, the offset which is generally to the allowance for doubtful accounts for the purpose of reducing receivables, including notes receivable, to an amount that approximates their net realizable value (the amount expected to be collected).

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