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Employee Benefit Plans Pension Plan Assets by Category (Details) | 12 Months Ended |
--- | --- | ---
Dec. 31, 2011 | Dec. 31, 2010
United States Pension Plans of US Entity, Defined Benefit [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Defined Benefit Plan, Actual Plan Asset Allocations | 100.00% | 100.00%
United States Pension Plans of US Entity, Defined Benefit [Member] | Equity Securities [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Defined Benefit Plan, Target Allocation Percentage | .50 |
Defined Benefit Plan, Actual Plan Asset Allocations | 50.80% | 51.60%
United States Pension Plans of US Entity, Defined Benefit [Member] | Fixed Income Funds [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Defined Benefit Plan, Target Allocation Percentage | 30% - 35% |
Defined Benefit Plan, Actual Plan Asset Allocations | 35.50% | 32.80%
United States Pension Plans of US Entity, Defined Benefit [Member] | Hedge Funds [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Defined Benefit Plan, Target Allocation Percentage | 0% - 15% |
Defined Benefit Plan, Actual Plan Asset Allocations | 13.50% | 11.00%
United States Pension Plans of US Entity, Defined Benefit [Member] | Cash and Cash Equivalents [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Defined Benefit Plan, Target Allocation Percentage | 0% - 5% |
Defined Benefit Plan, Actual Plan Asset Allocations | 0.20% | 4.60%
Foreign Pension Plans, Defined Benefit [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Defined Benefit Plan, Actual Plan Asset Allocations | 100.00% | 100.00%
Foreign Pension Plans, Defined Benefit [Member] | Equity Securities [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Defined Benefit Plan, Target Allocation Percentage | 45% - 55% |
Defined Benefit Plan, Actual Plan Asset Allocations | 44.50% | 50.50%
Foreign Pension Plans, Defined Benefit [Member] | Fixed Income Funds [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Defined Benefit Plan, Target Allocation Percentage | 45% - 55% |
Defined Benefit Plan, Actual Plan Asset Allocations | 47.90% | 44.30%
Foreign Pension Plans, Defined Benefit [Member] | Hedge Funds [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Defined Benefit Plan, Target Allocation Percentage | 0% |
Defined Benefit Plan, Actual Plan Asset Allocations | 0.00% | 0.00%
Foreign Pension Plans, Defined Benefit [Member] | Cash and Cash Equivalents [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Defined Benefit Plan, Target Allocation Percentage | 0% - 5% |
Defined Benefit Plan, Actual Plan Asset Allocations | 7.60% | 5.20%

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- Definition Description of target allocation percentages, or range of percentages, considering the major categories of plan assets as of the latest statement of financial position presented (on a weighted-average basis for employers with more than one plan) that are pertinent to an understanding of the plan investment policies and strategies. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 5 -Subparagraph (c)(i) -URI http://asc.fasb.org/extlink&oid=6962843&loc=d3e2446-114920 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (d)(i) -URI http://asc.fasb.org/extlink&oid=6962843&loc=d3e1928-114920 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 132R -Paragraph 5 -Subparagraph d(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. + Details
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- Definition The aggregate percentage of the fair value of investments (categorized by debt securities, equity securities, real estate and other plan assets) to the fair value of total plan assets held as of the measurement date. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 132R -Paragraph 5 -Subparagraph d(1) -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 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 5 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=6962843&loc=d3e2446-114920 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (d)(1) -URI http://asc.fasb.org/extlink&oid=6962843&loc=d3e1928-114920 + Details
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