| <table> |
| <tr> |
| <th rowspan="2"></th> |
| <th colspan="2">December 31</th> |
| </tr> |
| <tr> |
| <th>2009</th> |
| <th>2008</th> |
| </tr> |
| <tr> |
| <td>Millions of dollars</td> |
| <td></td> |
| <td></td> |
| </tr> |
| <tr> |
| <td>Gross deferred tax assets:</td> |
| <td></td> |
| <td></td> |
| </tr> |
| <tr> |
| <td> Employee compensation and benefits</td> |
| <td>$ 266</td> |
| <td>$ 324</td> |
| </tr> |
| <tr> |
| <td> Accrued liabilities</td> |
| <td>75</td> |
| <td>81</td> |
| </tr> |
| <tr> |
| <td> Net operating loss carryforwards</td> |
| <td>64</td> |
| <td>50</td> |
| </tr> |
| <tr> |
| <td> Capitalized research and experimentation</td> |
| <td>56</td> |
| <td>74</td> |
| </tr> |
| <tr> |
| <td> Insurance accruals</td> |
| <td>48</td> |
| <td>47</td> |
| </tr> |
| <tr> |
| <td> Software revenue recognition</td> |
| <td>35</td> |
| <td>31</td> |
| </tr> |
| <tr> |
| <td> Inventory</td> |
| <td>29</td> |
| <td>26</td> |
| </tr> |
| <tr> |
| <td> Other</td> |
| <td>80</td> |
| <td>114</td> |
| </tr> |
| <tr> |
| <td>Total gross deferred tax assets</td> |
| <td>653</td> |
| <td>747</td> |
| </tr> |
| <tr> |
| <td>Gross deferred tax liabilities:</td> |
| <td></td> |
| <td></td> |
| </tr> |
| <tr> |
| <td> Depreciation and amortization</td> |
| <td>447</td> |
| <td>303</td> |
| </tr> |
| <tr> |
| <td> Joint ventures, partnerships, and unconsolidated affiliates</td> |
| <td>33</td> |
| <td>25</td> |
| </tr> |
| <tr> |
| <td> Other</td> |
| <td>55</td> |
| <td>38</td> |
| </tr> |
| <tr> |
| <td>Total gross deferred tax liabilities</td> |
| <td>535</td> |
| <td>366</td> |
| </tr> |
| <tr> |
| <td>Net deferred income tax asset</td> |
| <td>$ 118</td> |
| <td>$ 381</td> |
| </tr> |
| </table> |