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Employee Benefit Plans (Details 2) (USD $) | 12 Months Ended |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
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Dec. 31, 2012 | Dec. 31, 2012 Pension plans | Dec. 31, 2011 Pension plans | Dec. 31, 2012 Pension plans Global equity securities: Capital equipment | Dec. 31, 2011 Pension plans Global equity securities: Capital equipment | Dec. 31, 2012 Pension plans Global equity securities: Consumer goods | Dec. 31, 2011 Pension plans Global equity securities: Consumer goods | Dec. 31, 2012 Pension plans Global equity securities: Energy | Dec. 31, 2011 Pension plans Global equity securities: Energy | Dec. 31, 2012 Pension plans Global equity securities: Finance | Dec. 31, 2011 Pension plans Global equity securities: Finance | Dec. 31, 2012 Pension plans Global equity securities: Materials | Dec. 31, 2011 Pension plans Global equity securities: Materials | Dec. 31, 2012 Pension plans Global equity securities: Services | Dec. 31, 2011 Pension plans Global equity securities: Services | Dec. 31, 2012 Pension plans Global equity securities: Miscellaneous | Dec. 31, 2011 Pension plans Global equity securities: Miscellaneous | Dec. 31, 2012 Pension plans Global Equity Common Trust Funds | Dec. 31, 2011 Pension plans Global Equity Common Trust Funds | Dec. 31, 2012 Pension plans Fixed Income Common Trust Funds | Dec. 31, 2011 Pension plans Fixed Income Common Trust Funds | Dec. 31, 2012 Pension plans Non-U.S. Government securities | Dec. 31, 2011 Pension plans Non-U.S. Government securities | Dec. 31, 2012 Pension plans Commingled Global Fund Allocations | Dec. 31, 2011 Pension plans Commingled Global Fund Allocations | Dec. 31, 2012 Pension plans Short term investments | Dec. 31, 2011 Pension plans Short term investments | Dec. 31, 2012 Pension plans Other | Dec. 31, 2011 Pension plans Other | Dec. 31, 2012 Quoted Prices in Active Markets for Identical Assets (Level 1) Pension plans | Dec. 31, 2011 Quoted Prices in Active Markets for Identical Assets (Level 1) Pension plans | Dec. 31, 2012 Quoted Prices in Active Markets for Identical Assets (Level 1) Pension plans Global equity securities: Capital equipment | Dec. 31, 2011 Quoted Prices in Active Markets for Identical Assets (Level 1) Pension plans Global equity securities: Capital equipment | Dec. 31, 2012 Quoted Prices in Active Markets for Identical Assets (Level 1) Pension plans Global equity securities: Consumer goods | Dec. 31, 2011 Quoted Prices in Active Markets for Identical Assets (Level 1) Pension plans Global equity securities: Consumer goods | Dec. 31, 2012 Quoted Prices in Active Markets for Identical Assets (Level 1) Pension plans Global equity securities: Energy | Dec. 31, 2011 Quoted Prices in Active Markets for Identical Assets (Level 1) Pension plans Global equity securities: Energy | Dec. 31, 2012 Quoted Prices in Active Markets for Identical Assets (Level 1) Pension plans Global equity securities: Finance | Dec. 31, 2011 Quoted Prices in Active Markets for Identical Assets (Level 1) Pension plans Global equity securities: Finance | Dec. 31, 2012 Quoted Prices in Active Markets for Identical Assets (Level 1) Pension plans Global equity securities: Materials | Dec. 31, 2011 Quoted Prices in Active Markets for Identical Assets (Level 1) Pension plans Global equity securities: Materials | Dec. 31, 2012 Quoted Prices in Active Markets for Identical Assets (Level 1) Pension plans Global equity securities: Services | Dec. 31, 2011 Quoted Prices in Active Markets for Identical Assets (Level 1) Pension plans Global equity securities: Services | Dec. 31, 2012 Quoted Prices in Active Markets for Identical Assets (Level 1) Pension plans Global equity securities: Miscellaneous | Dec. 31, 2011 Quoted Prices in Active Markets for Identical Assets (Level 1) Pension plans Global equity securities: Miscellaneous | Dec. 31, 2012 Quoted Prices in Active Markets for Identical Assets (Level 1) Pension plans Global Equity Common Trust Funds | Dec. 31, 2011 Quoted Prices in Active Markets for Identical Assets (Level 1) Pension plans Global Equity Common Trust Funds | Dec. 31, 2012 Quoted Prices in Active Markets for Identical Assets (Level 1) Pension plans Fixed Income Common Trust Funds | Dec. 31, 2011 Quoted Prices in Active Markets for Identical Assets (Level 1) Pension plans Fixed Income Common Trust Funds | Dec. 31, 2012 Quoted Prices in Active Markets for Identical Assets (Level 1) Pension plans Commingled Global Fund Allocations | Dec. 31, 2011 Quoted Prices in Active Markets for Identical Assets (Level 1) Pension plans Commingled Global Fund Allocations | Dec. 31, 2012 Quoted Prices in Active Markets for Identical Assets (Level 1) Pension plans Short term investments | Dec. 31, 2011 Quoted Prices in Active Markets for Identical Assets (Level 1) Pension plans Short term investments | Dec. 31, 2012 Quoted Prices in Active Markets for Identical Assets (Level 1) Pension plans Other | Dec. 31, 2011 Quoted Prices in Active Markets for Identical Assets (Level 1) Pension plans Other | Dec. 31, 2012 Significant Observable Inputs (Level 2) Securities collateralized | Dec. 31, 2011 Significant Observable Inputs (Level 2) Securities collateralized | Dec. 31, 2012 Significant Observable Inputs (Level 2) Pension plans | Dec. 31, 2011 Significant Observable Inputs (Level 2) Pension plans | Dec. 31, 2012 Significant Observable Inputs (Level 2) Pension plans Global Equity Common Trust Funds | Dec. 31, 2011 Significant Observable Inputs (Level 2) Pension plans Global Equity Common Trust Funds | Dec. 31, 2012 Significant Observable Inputs (Level 2) Pension plans Fixed Income Common Trust Funds | Dec. 31, 2011 Significant Observable Inputs (Level 2) Pension plans Fixed Income Common Trust Funds | Dec. 31, 2012 Significant Observable Inputs (Level 2) Pension plans Non-U.S. Government securities | Dec. 31, 2011 Significant Observable Inputs (Level 2) Pension plans Non-U.S. Government securities | Dec. 31, 2012 Significant Observable Inputs (Level 2) Pension plans Commingled Global Fund Allocations | Dec. 31, 2011 Significant Observable Inputs (Level 2) Pension plans Commingled Global Fund Allocations | Dec. 31, 2012 Significant Observable Inputs (Level 2) Pension plans Other | Dec. 31, 2012 Significant Unobservable Inputs (Level 3) | Dec. 31, 2011 Significant Unobservable Inputs (Level 3) | Dec. 31, 2010 Significant Unobservable Inputs (Level 3) | Dec. 31, 2012 Significant Unobservable Inputs (Level 3) Global Equity Common Trust Funds | Dec. 31, 2011 Significant Unobservable Inputs (Level 3) Global Equity Common Trust Funds | Dec. 31, 2012 Significant Unobservable Inputs (Level 3) Fixed Income Common Trust Funds | Dec. 31, 2011 Significant Unobservable Inputs (Level 3) Fixed Income Common Trust Funds | Dec. 31, 2010 Significant Unobservable Inputs (Level 3) Fixed Income Common Trust Funds | Dec. 31, 2012 Significant Unobservable Inputs (Level 3) Commingled Global Fund Allocations | Dec. 31, 2011 Significant Unobservable Inputs (Level 3) Commingled Global Fund Allocations | Dec. 31, 2010 Significant Unobservable Inputs (Level 3) Commingled Global Fund Allocations | Dec. 31, 2012 Significant Unobservable Inputs (Level 3) Other | Dec. 31, 2011 Significant Unobservable Inputs (Level 3) Other | Dec. 31, 2010 Significant Unobservable Inputs (Level 3) Other | Dec. 31, 2012 Significant Unobservable Inputs (Level 3) Pension plans | Dec. 31, 2011 Significant Unobservable Inputs (Level 3) Pension plans | Dec. 31, 2012 Significant Unobservable Inputs (Level 3) Pension plans Global Equity Common Trust Funds | Dec. 31, 2011 Significant Unobservable Inputs (Level 3) Pension plans Global Equity Common Trust Funds | Dec. 31, 2012 Significant Unobservable Inputs (Level 3) Pension plans Fixed Income Common Trust Funds | Dec. 31, 2011 Significant Unobservable Inputs (Level 3) Pension plans Fixed Income Common Trust Funds | Dec. 31, 2012 Significant Unobservable Inputs (Level 3) Pension plans Commingled Global Fund Allocations | Dec. 31, 2011 Significant Unobservable Inputs (Level 3) Pension plans Commingled Global Fund Allocations | Dec. 31, 2012 Significant Unobservable Inputs (Level 3) Pension plans Other | Dec. 31, 2011 Significant Unobservable Inputs (Level 3) Pension plans Other
Employee Benefit Plans |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Fair value of plan assets |  | $ 1,213,800,000 | $ 1,115,200,000 | $ 20,200,000 | $ 27,100,000 | $ 17,700,000 | $ 16,500,000 | $ 8,800,000 | $ 12,300,000 | $ 8,200,000 | $ 10,100,000 | $ 9,400,000 | $ 17,200,000 | $ 10,600,000 | $ 12,700,000 | $ 37,300,000 | $ 39,400,000 | $ 366,100,000 | $ 328,900,000 | $ 380,500,000 | $ 331,900,000 | $ 36,300,000 | $ 36,000,000 | $ 247,100,000 | $ 231,900,000 | $ 61,500,000 | $ 43,500,000 | $ 10,100,000 | $ 7,700,000 | $ 440,300,000 | $ 432,800,000 | $ 20,200,000 | $ 27,100,000 | $ 17,700,000 | $ 16,500,000 | $ 8,800,000 | $ 12,300,000 | $ 8,200,000 | $ 10,100,000 | $ 9,400,000 | $ 17,200,000 | $ 10,600,000 | $ 12,700,000 | $ 37,300,000 | $ 39,400,000 | $ 103,600,000 | $ 91,600,000 | $ 69,400,000 | $ 64,000,000 | $ 91,200,000 | $ 96,700,000 | $ 61,500,000 | $ 43,500,000 | $ 2,400,000 | $ 1,700,000 | $ 31,400,000 | $ 47,400,000 | $ 580,100,000 | $ 520,700,000 | $ 233,500,000 | $ 212,900,000 | $ 309,700,000 | $ 266,500,000 | $ 36,300,000 | $ 36,000,000 | $ 300,000 | $ 5,300,000 | $ 300,000 | $ 193,400,000 | $ 161,700,000 | $ 131,900,000 | $ 29,000,000 | $ 24,400,000 | $ 1,400,000 | $ 1,400,000 | $ 1,300,000 | $ 155,600,000 | $ 129,900,000 | $ 122,400,000 | $ 7,400,000 | $ 6,000,000 | $ 8,200,000 | $ 193,400,000 | $ 161,700,000 | $ 29,000,000 | $ 24,400,000 | $ 1,400,000 | $ 1,400,000 | $ 155,600,000 | $ 129,900,000 | $ 7,400,000 | $ 6,000,000
Value of Short term investments (in dollars per unit) | $ 1.00 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |

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- Definition Assets, usually stocks, bonds, and other investments, that have been segregated and restricted (usually in a trust) to provide benefits, at their fair value as of the measurement date. Plan assets include amounts contributed by the employer (and by employees for a contributory plan) and amounts earned from investing the contributions, less benefits paid. If a plan has liabilities other than for benefits, those non-benefit obligations may be considered as reductions of plan assets. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 30 -Section 35 -Paragraph 50 -URI http://asc.fasb.org/extlink&oid=6867990&loc=d3e12355-114930 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 132R -Paragraph 5 -Subparagraph d(iv)(b)(i) -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 132R -Paragraph 5 -Subparagraph b -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 87 -Paragraph 49 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6962843&loc=d3e1928-114920 + Details
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