. see note 3 , 201cworking capital detail 201d under item 8 of this form 10-k for further information related to the components of the company 2019s operating working capital . we believe operating working capital represents the key components of working capital under the operating control of our businesses . operating working capital at december 31 , 2012 and 2011 was $ 2.9 billion and $ 2.7 billion , respectively