Quarterly report pursuant to Section 13 or 15(d)

Lease Obligations (Future Minimum Lease Payments) (Detail)

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Lease Obligations (Future Minimum Lease Payments) (Detail) (USD $)
In Millions, unless otherwise specified
Jun. 30, 2012
Operating Leased Assets [Line Items]  
2012, Capital Leases (July 1 - December 31) $ 40.2
2013, Capital Leases 72.1
2014, Capital Leases 66.7
2015, Capital Leases 55.5
2016, Capital Leases 39.9
2017 and thereafter, Capital Leases 123.0
Total minimum lease payments, Capital Leases 397.4
Amounts representing interest, Capital Leases 90.5
Present value of net minimum lease payments, Capital Leases 306.9 [1]
2012, Operating Leases (July 1 - December 31) 11.7
2013, Operating Leases 23.5
2014, Operating Leases 19.6
2015, Operating Leases 12.7
2016, Operating Leases 9.5
2017 and thereafter, Operating Leases 30.2
Total minimum lease payments, Operating Leases 107.2
Other Current Liabilities [Member]
 
Operating Leased Assets [Line Items]  
Present value of net minimum lease payments, Capital Leases 53.4
Other Liabilities [Member]
 
Operating Leased Assets [Line Items]  
Present value of net minimum lease payments, Capital Leases $ 253.5
[1] The total is comprised of $53.4 million and $253.5 million classified as Other current liabilities and Other liabilities , respectively, in the Statements of Unaudited Condensed Consolidated Financial Position at June 30, 2012.