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Supplemental Cash Flow Information (Details) (USD $)	6 Months Ended
Supplemental Cash Flow Information (Details) (USD $)	Jun. 30, 2013	Jun. 30, 2012
Supplemental Cash Flow Information [Abstract]
Interest (1)	$ 121,800,000	$ 97,445,000
Income Taxes, Net of Refunds Received	173,411,000	162,125,000
Interest Costs Capitalized	22,000,000	24,000,000
Accrued Capital Expenditures	$ 724,000,000	$ 857,000,000

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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- Definition

The amount of cash paid for interest during the period net of cash paid for interest that is capitalized.

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