Quarterly report pursuant to Section 13 or 15(d)

Cash Flow Information (Reconciliation Of Capital Additions To Cash Paid For Capital Expenditures) (Details)

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Cash Flow Information (Reconciliation Of Capital Additions To Cash Paid For Capital Expenditures) (Details) (USD $)
In Millions, unless otherwise specified
3 Months Ended
Mar. 31, 2012
Mar. 31, 2011
Cash Flow Information [Abstract]    
Capital additions $ 353.4 $ 91.0
Cash paid for capital expenditures 241.1 65.7
Difference 112.3 25.3
Non-cash accruals 59.5 25.3
Capital leases 52.8  
Total $ 112.3 $ 25.3