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Operating Leases
12 Months Ended
Dec. 31, 2012
Operating Leases  
Operating Leases

16. Operating Leases

        Rent expense attributable to all warehouse, office buildings and equipment operating leases was $76 million in 2012, $89 million in 2011, and $115 million in 2010. Minimum future rentals under operating leases are as follows: 2013, $52 million; 2014, $42 million; 2015, $33 million; 2016, $26 million; 2017, $18 million; and 2018 and thereafter, $35 million.