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Quarterly report pursuant to Section 13 or 15(d)

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

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Cash Flow Information (Reconciliation Of Capital Additions To Cash Paid For Capital Expenditures) (Detail) (USD $)
In Millions, unless otherwise specified
6 Months Ended
Jun. 30, 2012
Jun. 30, 2011
Capital additions $ 619.5 $ 297.4
Cash paid for capital expenditures 517.0 244.5
Difference 102.5 52.9
Non-cash accruals 53.1 52.9
Capital leases 49.4 Ìý
Total $ 102.5 $ 52.9