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Supplemental Cash Flow Information (Details) (USD $) In Millions	6 Months Ended
	Jun. 30, 2011	Jun. 30, 2010
Supplemental Cash Flow Information (Textuals)
Interest paid, net of amounts capitalized	$ 125.1	$ 101.1
Income taxes paid, net of refunds	(49.4)	116.7
Construction Payable, Current	$ 51.2	$ 24.4

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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