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Consolidated Balance Sheets (Parenthetical) In Thousands, except Share data, unless otherwise specified | Dec. 31, 2012 USD ($) | Dec. 31, 2012 CHF | Dec. 31, 2011 USD ($) | Dec. 31, 2011 CHF
--- | --- | --- | --- | ---
Accounts and notes receivable, allowances | $ 37,455 |  | $ 39,111 |
Common stock, par value |  | 0.50 |  | 0.50
Common stock, shares authorized | 213,000,000 | 213,000,000 | 250,000,000 | 250,000,000
Common stock, shares issued | 213,000,000 | 213,000,000 | 98,622,564 | 98,622,564
Common stock, shares outstanding |  |  | 98,622,564 | 98,622,564
Treasury stock, shares | 6,862,540 | 6,862,540 |  |

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