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SCHEDULE II - VALUATION AND QUALIFYING ACCOUNTS (CONSOLIDATED) | 12 Months Ended
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Dec. 31, 2011
SCHEDULE II - VALUATION AND QUALIFYING ACCOUNTS (CONSOLIDATED) |
SCHEDULE II - VALUATION AND QUALIFYING ACCOUNTS (CONSOLIDATED) |
SCHEDULE II—VALUATION AND QUALIFYING ACCOUNTS (CONSOLIDATED) Years ended December 31, 2011, 2010, and 2009 (Millions of Dollars) Reserves deducted from assets in the balance sheets: Allowances for losses and discounts on receivables
|  |  |  | Additions |  |  |  |  |
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|  | Balance at beginning of period |  | Charged to costs and expenses |  | Other |  | Deductions (Note 1) |  | Balance at end of period |
2011 |  | $ | 40 |  | $ | 8 |  | $ | (6 | ) | $ | (4 | ) | $ | 38 |
2010 |  | $ | 37 |  | $ | — |  | $ | 5 |  | $ | (2 | ) | $ | 40 |
2009 |  | $ | 40 |  | $ | 2 |  | $ | (4 | ) | $ | (1 | ) | $ | 37 |
(1) Deductions from allowances for losses and discounts on receivables represent uncollectible notes and accounts written off. Valuation allowance on net deferred tax assets
|  | Balance at beginning of period |  | Charged to income |  | Charged to other comprehensive income |  | Foreign currency translation |  | Other |  | Balance at end of period |
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2011 |  | $ | 1,077 |  | $ | 15 |  | $ | 89 |  | $ | (1 | ) | $ | (4 | ) | $ | 1,176 |
2010 |  | $ | 1,095 |  | $ | 11 |  | $ | (47 | ) | $ | (5 | ) | $ | 23 |  | $ | 1,077 |
2009 |  | $ | 1,047 |  | $ | 75 |  | $ | (46 | ) | $ | 13 |  | $ | 6 |  | $ | 1,095 |

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- Definition The entire disclosure for any allowance and reserve accounts (their beginning and ending balances, as well as a reconciliation by type of activity during the period). Alternatively, disclosure of the required information may be within the footnotes to the financial statements or a supplemental schedule to the financial statements. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 09 -Article 12 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=6881521&loc=d3e24092-122690 + Details
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