2.2.0.7 false Supplemental Balance Sheet Information 0213 - Disclosure - Supplemental Balance Sheet Information true false false false 1 USD false false USD Standard http://www.xbrl.org/2003/iso4217 USD iso4217 0 USDEPS Divide http://www.xbrl.org/2003/iso4217 USD iso4217 http://www.xbrl.org/2003/instance shares xbrli 0 Shares Standard http://www.xbrl.org/2003/instance shares xbrli 0 $ 2 Supplemental Balance Sheet Information [Abstract] 0 usg_SupplementalBalanceSheetInformationAbstract usg false na duration Supplemental Balance Sheet Information. false false false false false true false false false false false false 1 false false false false 0 0 false false false xbrli:stringItemType string Supplemental Balance Sheet Information. false 3 Supplemental Balance Sheet Information 1 usg_SupplementalBalanceSheetInformationTextBlock usg false na duration Disclosure of additional balance sheet information not disclosed elsewhere in the notes to the condensed consolidated... false false false false false false false false false false false verboselabel false 1 false false false false 0 0   <div style="font-family: 'Times New Roman',Times,serif"> <div align="left" style="font-size: 10pt; margin-top: 12pt"><b>13. Supplemental Balance Sheet Information</b> </div> <div align="left" style="font-size: 10pt; margin-top: 6pt">INVENTORIES </div> <div align="left" style="font-size: 10pt; margin-top: 6pt">Total inventories consisted of the following: </div> <div align="center"> <table style="font-size: 10pt; text-align: left" cellspacing="0" border="0" cellpadding="0" width="100%">  <tr valign="bottom"> <td width="76%"> </td> <td width="5%"> </td> <td width="1%"> </td> <td width="5%"> </td> <td width="1%"> </td> <td width="5%"> </td> <td width="1%"> </td> <td width="5%"> </td> <td width="1%"> </td> </tr> <tr style="font-size: 8pt" valign="bottom"> <td> </td> <td> </td> <td nowrap="nowrap" align="right" colspan="2">As of</td> <td> </td> <td> </td> <td nowrap="nowrap" align="right" colspan="2">As of</td> <td> </td> </tr> <tr style="font-size: 8pt" valign="bottom"> <td> </td> <td> </td> <td nowrap="nowrap" align="right" colspan="2">June 30,</td> <td> </td> <td> </td> <td nowrap="nowrap" align="right" colspan="2">December 31,</td> <td> </td> </tr> <tr style="font-size: 8pt" valign="bottom"> <td nowrap="nowrap" align="left"><i>(millions)</i></td> <td> </td> <td nowrap="nowrap" align="right" colspan="2">2010</td> <td> </td> <td> </td> <td nowrap="nowrap" align="right" colspan="2">2009</td> <td> </td> </tr>   <tr style="font-size: 1px"> <td colspan="9" align="left" style="border-top: 1px solid #000000"> </td> </tr> <tr valign="bottom" style="background: #cceeff"> <td> <div style="margin-left:15px; text-indent:-15px">Finished goods and work in progress </div></td> <td> </td> <td align="left">$</td> <td align="right">243</td> <td> </td> <td> </td> <td align="left">$</td> <td align="right">232</td> <td> </td> </tr> <tr valign="bottom"> <td> <div style="margin-left:15px; text-indent:-15px">Raw materials </div></td> <td> </td> <td> </td> <td align="right">55</td> <td> </td> <td> </td> <td> </td> <td align="right">57</td> <td> </td> </tr> <tr style="font-size: 1px"> <td colspan="9" align="left" style="border-top: 1px solid #000000"> </td> </tr> <tr valign="bottom" style="background: #cceeff"> <td> <div style="margin-left:15px; text-indent:-15px">Total </div></td> <td> </td> <td align="left">$</td> <td align="right">298</td> <td> </td> <td> </td> <td align="left">$</td> <td align="right">289</td> <td> </td> </tr> <tr style="font-size: 1px"> <td colspan="9" align="left" style="border-top: 3px double #000000"> </td> </tr>  </table> </div> <div align="left" style="font-size: 10pt; margin-top: 12pt">ASSET RETIREMENT OBLIGATIONS </div> <div align="left" style="font-size: 10pt; margin-top: 6pt">Changes in the liability for asset retirement obligations consisted of the following: </div> <div align="center"> <table style="font-size: 10pt; text-align: left" cellspacing="0" border="0" cellpadding="0" width="100%">  <tr valign="bottom"> <td width="76%"> </td> <td width="5%"> </td> <td width="1%"> </td> <td width="5%"> </td> <td width="1%"> </td> <td width="5%"> </td> <td width="1%"> </td> <td width="5%"> </td> <td width="1%"> </td> </tr> <tr style="font-size: 8pt" valign="bottom"> <td style="border-bottom: 0px solid #000000"> </td> <td style="border-bottom: 0px solid #000000"> </td> <td nowrap="nowrap" align="right" colspan="6" style="border-bottom: 0px solid #000000">Six Months Ended June 30,</td> <td style="border-bottom: 0px solid #000000"> </td> </tr> <tr style="font-size: 8pt" valign="bottom"> <td nowrap="nowrap" align="left"><i>(millions)</i></td> <td> </td> <td nowrap="nowrap" align="right" colspan="2">2010</td> <td> </td> <td> </td> <td nowrap="nowrap" align="right" colspan="2">2009</td> <td> </td> </tr>   <tr style="font-size: 1px"> <td colspan="9" align="left" style="border-top: 1px solid #000000"> </td> </tr> <tr valign="bottom" style="background: #cceeff"> <td> <div style="margin-left:15px; text-indent:-15px">Balance as of January 1 </div></td> <td> </td> <td align="left">$</td> <td align="right">101</td> <td> </td> <td> </td> <td align="left">$</td> <td align="right">89</td> <td> </td> </tr> <tr valign="bottom"> <td> <div style="margin-left:15px; text-indent:-15px">Accretion expense </div></td> <td> </td> <td> </td> <td align="right">2</td> <td> </td> <td> </td> <td> </td> <td align="right">3</td> <td> </td> </tr> <tr style="font-size: 1px"> <td colspan="9" align="left" style="border-top: 1px solid #000000"> </td> </tr> <tr valign="bottom" style="background: #cceeff"> <td> <div style="margin-left:15px; text-indent:-15px">Balance as of June 30 </div></td> <td> </td> <td align="left">$</td> <td align="right">103</td> <td> </td> <td> </td> <td align="left">$</td> <td align="right">92</td> <td> </td> </tr> <tr style="font-size: 1px"> <td colspan="9" align="left" style="border-top: 3px double #000000"> </td> </tr>  </table> </div> <div align="left" style="font-size: 10pt; margin-top: 12pt">PROPERTY, PLANT AND EQUIPMENT </div> <div align="left" style="font-size: 10pt; margin-top: 6pt">As of June 30, 2010, $23 million of net property, plant and equipment included in other current assets on the condensed consolidated balance sheet was classified as “assets held for sale.” Assets in this category are primarily related to our United States Gypsum Company reporting unit. These assets are anticipated to be sold in the next 12 months. </div> </div>  <!-- Begin Block Tagged Note false false false us-types:textBlockItemType textblock Disclosure of additional balance sheet information not disclosed elsewhere in the notes to the condensed consolidated financial statements. This information includes (1) the total costs of the major classes of inventory, (2) a rollforward of costs related to asset retirement obligations, legal obligations associated with the disposal or retirement from service of a tangible long-lived asset that results from the acquisition, construction or development, or the normal operations of a long-lived asset, except for certain obligations of lessees and (3) the total cost of net property, plant and equipment associated with assets held for sale including the primary reporting unit carrying such assets held for sale and the expected timeframe for such assets to be sold. No authoritative reference available. false 1 2 false UnKnown UnKnown UnKnown false true