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Supplemental Cash Flow Information (Details) (USD $)	9 Months Ended
Supplemental Cash Flow Information (Details) (USD $)	Sep. 30, 2012	Sep. 30, 2011
Supplemental Cash Flow Information
United States federal, state and foreign income taxes paid for continuing operations	$ 1,800,000,000	$ 2,200,000,000
Interest Paid	167,000,000	292,000,000
Charges on early debt extinguishment before write-off of deferred debt issuance cost		$ 154,000,000

The amount of cash paid during the current period to foreign, federal, state, and local authorities as taxes on income, net of any cash received during the current period as refunds for the overpayment of taxes.

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