XML 94 R15.htm IDEA: XBRL DOCUMENT v2.4.0.6
Operating Leases
12 Months Ended
Dec. 31, 2011
Operating Leases.  
Operating Leases

7. Operating Leases

        Rent expense attributable to all warehouse, office buildings and equipment operating leases was $89 million in 2011, $115 million in 2010, and $110 million in 2009. Minimum future rentals under operating leases are as follows: 2012, $59 million; 2013, $45 million; 2014, $31 million; 2015, $19 million; 2016, $15 million; and 2017 and thereafter, $26 million.