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Employee Retirement Plans Assets of Plans Invested in Classes of Securities (Details) - USD ($)
$ in Thousands
 12 Months Ended
Jan. 02, 2016
Jan. 03, 2015
Dec. 28, 2013
USPlans [Member]      
Defined Benefit Plan Disclosure [Line Items]      
Defined Benefit Plan, Fair Value of Plan Assets $ 15,887 $ 13,575 $ 13,324
Defined Benefit Plan, Target Plan Asset Allocations 100.00%    
Percentage of Plan Assets 100.00% 100.00%  
Non US Plans [Member]      
Defined Benefit Plan Disclosure [Line Items]      
Defined Benefit Plan, Fair Value of Plan Assets $ 1,287,723 $ 15,306 $ 15,172
Defined Benefit Plan, Target Plan Asset Allocations 100.00%    
Percentage of Plan Assets 100.00% 100.00%  
Equity [Member] | USPlans [Member]      
Defined Benefit Plan Disclosure [Line Items]      
Defined Benefit Plan, Target Plan Asset Allocations 45.00%    
Percentage of Plan Assets 43.00% 48.00%  
Equity [Member] | Non US Plans [Member]      
Defined Benefit Plan Disclosure [Line Items]      
Defined Benefit Plan, Target Plan Asset Allocations 16.00%    
Percentage of Plan Assets 19.00% 72.00%  
Fixed Income [Member] | USPlans [Member]      
Defined Benefit Plan Disclosure [Line Items]      
Defined Benefit Plan, Target Plan Asset Allocations 45.00%    
Percentage of Plan Assets 46.00% 36.00%  
Fixed Income [Member] | Non US Plans [Member]      
Defined Benefit Plan Disclosure [Line Items]      
Defined Benefit Plan, Target Plan Asset Allocations 45.00%    
Percentage of Plan Assets 44.00% 24.00%  
Money Market Instruments [Member] | USPlans [Member]      
Defined Benefit Plan Disclosure [Line Items]      
Defined Benefit Plan, Target Plan Asset Allocations 3.00%    
Percentage of Plan Assets 4.00% 4.00%  
Money Market Instruments [Member] | Non US Plans [Member]      
Defined Benefit Plan Disclosure [Line Items]      
Defined Benefit Plan, Target Plan Asset Allocations 28.00%    
Percentage of Plan Assets 20.00% 0.00%  
Other (real estate & commodities) [Member] | USPlans [Member]      
Defined Benefit Plan Disclosure [Line Items]      
Defined Benefit Plan, Target Plan Asset Allocations 7.00%    
Percentage of Plan Assets 7.00% 12.00%  
Other (real estate & commodities) [Member] | Non US Plans [Member]      
Defined Benefit Plan Disclosure [Line Items]      
Defined Benefit Plan, Target Plan Asset Allocations 11.00%    
Percentage of Plan Assets 12.00% 0.00%  
Cash and Cash Equivalents [Member] | Non US Plans [Member]      
Defined Benefit Plan Disclosure [Line Items]      
Defined Benefit Plan, Target Plan Asset Allocations 0.00%    
Percentage of Plan Assets 5.00% 4.00%  
Fair Value, Inputs, Level 1 [Member] | USPlans [Member]      
Defined Benefit Plan Disclosure [Line Items]      
Defined Benefit Plan, Fair Value of Plan Assets $ 12,447    
Fair Value, Inputs, Level 1 [Member] | Non US Plans [Member]      
Defined Benefit Plan Disclosure [Line Items]      
Defined Benefit Plan, Fair Value of Plan Assets 772,587    
Fair Value, Inputs, Level 1 [Member] | Short Term Investment Fund [Member] | USPlans [Member]      
Defined Benefit Plan Disclosure [Line Items]      
Defined Benefit Plan, Fair Value of Plan Assets [1] 0    
Fair Value, Inputs, Level 1 [Member] | Equity Securities, U K Market [Member] | Equity [Member] | Non US Plans [Member]      
Defined Benefit Plan Disclosure [Line Items]      
Defined Benefit Plan, Fair Value of Plan Assets 91,075    
Fair Value, Inputs, Level 1 [Member] | Equity Securities, International, Developed [Member] | Equity [Member] | Non US Plans [Member]      
Defined Benefit Plan Disclosure [Line Items]      
Defined Benefit Plan, Fair Value of Plan Assets 144,864    
Fair Value, Inputs, Level 1 [Member] | Equity Securities, international, Emerging [Member] | Equity [Member] | Non US Plans [Member]      
Defined Benefit Plan Disclosure [Line Items]      
Defined Benefit Plan, Fair Value of Plan Assets 6,375    
Fair Value, Inputs, Level 1 [Member] | Equity Securities, Unquoted Private Equity [Member] | Equity [Member] | Non US Plans [Member]      
Defined Benefit Plan Disclosure [Line Items]      
Defined Benefit Plan, Fair Value of Plan Assets 759    
Fair Value, Inputs, Level 1 [Member] | Cash and Cash Equivalents [Member] | Short Term Investment Fund [Member] | Non US Plans [Member]      
Defined Benefit Plan Disclosure [Line Items]      
Defined Benefit Plan, Fair Value of Plan Assets 64,651    
Fair Value, Inputs, Level 1 [Member] | U S Large Cap [Member] | Equity [Member] | USPlans [Member]      
Defined Benefit Plan Disclosure [Line Items]      
Defined Benefit Plan, Fair Value of Plan Assets 3,149    
Fair Value, Inputs, Level 1 [Member] | U S Mid Cap [Member] | Equity [Member] | USPlans [Member]      
Defined Benefit Plan Disclosure [Line Items]      
Defined Benefit Plan, Fair Value of Plan Assets 383    
Fair Value, Inputs, Level 1 [Member] | U S Small Cap [Member] | Equity [Member] | USPlans [Member]      
Defined Benefit Plan Disclosure [Line Items]      
Defined Benefit Plan, Fair Value of Plan Assets 383    
Fair Value, Inputs, Level 1 [Member] | International Equity Securities [Member] | Equity [Member] | USPlans [Member]      
Defined Benefit Plan Disclosure [Line Items]      
Defined Benefit Plan, Fair Value of Plan Assets 2,291    
Fair Value, Inputs, Level 1 [Member] | US Government Corporations and Agencies Securities [Member] | Fixed Income [Member] | USPlans [Member]      
Defined Benefit Plan Disclosure [Line Items]      
Defined Benefit Plan, Fair Value of Plan Assets 4,311    
Fair Value, Inputs, Level 1 [Member] | High Yield Fixed Income [Member] | Fixed Income [Member] | USPlans [Member]      
Defined Benefit Plan Disclosure [Line Items]      
Defined Benefit Plan, Fair Value of Plan Assets 778    
Fair Value, Inputs, Level 1 [Member] | Real Estate Funds [Member] | Alternative Investment [Member] | USPlans [Member]      
Defined Benefit Plan Disclosure [Line Items]      
Defined Benefit Plan, Fair Value of Plan Assets 771    
Fair Value, Inputs, Level 1 [Member] | Commodities Investment [Member] | Leveraged Loans [Member] | Non US Plans [Member]      
Defined Benefit Plan Disclosure [Line Items]      
Defined Benefit Plan, Fair Value of Plan Assets 0    
Fair Value, Inputs, Level 1 [Member] | Commodities Investment [Member] | Alternative Investment [Member] | USPlans [Member]      
Defined Benefit Plan Disclosure [Line Items]      
Defined Benefit Plan, Fair Value of Plan Assets 381    
Fair Value, Inputs, Level 1 [Member] | Commodities Investment [Member] | Alternative Investment [Member] | Non US Plans [Member]      
Defined Benefit Plan Disclosure [Line Items]      
Defined Benefit Plan, Fair Value of Plan Assets 12,062    
Fair Value, Inputs, Level 1 [Member] | Real Estate Funds,Indirect [Domain] | Real Estate Funds [Member] | Non US Plans [Member]      
Defined Benefit Plan Disclosure [Line Items]      
Defined Benefit Plan, Fair Value of Plan Assets 177    
Fair Value, Inputs, Level 1 [Member] | Fixed Income, Government/Corporate, U K [Member] | Fixed Income [Member] | Non US Plans [Member]      
Defined Benefit Plan Disclosure [Line Items]      
Defined Benefit Plan, Fair Value of Plan Assets 118,332    
Fair Value, Inputs, Level 1 [Member] | Fixed Income, Government/Corporate, International [Member] | Fixed Income [Member] | Non US Plans [Member]      
Defined Benefit Plan Disclosure [Line Items]      
Defined Benefit Plan, Fair Value of Plan Assets 67,217    
Fair Value, Inputs, Level 1 [Member] | Fixed Income, Government/Corporate, Index Linked [Member] | Fixed Income [Member] | Non US Plans [Member]      
Defined Benefit Plan Disclosure [Line Items]      
Defined Benefit Plan, Fair Value of Plan Assets 258,502    
Fair Value, Inputs, Level 1 [Member] | Fixed Income, Government/Corporate, Other [Member] | Fixed Income [Member] | Non US Plans [Member]      
Defined Benefit Plan Disclosure [Line Items]      
Defined Benefit Plan, Fair Value of Plan Assets 3,518    
Fair Value, Inputs, Level 1 [Member] | Fixed Income,Convertible Bonds [Member] | Fixed Income [Member] | Non US Plans [Member]      
Defined Benefit Plan Disclosure [Line Items]      
Defined Benefit Plan, Fair Value of Plan Assets 1,471    
Fair Value, Inputs, Level 1 [Member] | Real Estate Funds, Direct [Member] | Real Estate Funds [Member] | Non US Plans [Member]      
Defined Benefit Plan Disclosure [Line Items]      
Defined Benefit Plan, Fair Value of Plan Assets 0    
Fair Value, Inputs, Level 1 [Member] | Hedge Funds, Equity [Member] | Hedge Funds, Multi-strategy [Member] | Non US Plans [Member]      
Defined Benefit Plan Disclosure [Line Items]      
Defined Benefit Plan, Fair Value of Plan Assets 0    
Fair Value, Inputs, Level 1 [Member] | Hedge Fund, Arbitrage&Event [Member] | Hedge Funds, Multi-strategy [Member] | Non US Plans [Member]      
Defined Benefit Plan Disclosure [Line Items]      
Defined Benefit Plan, Fair Value of Plan Assets 0    
Fair Value, Inputs, Level 1 [Member] | Hedge Fund, Directional Trading&Fixed Income [Member] | Hedge Funds, Multi-strategy [Member] | Non US Plans [Member]      
Defined Benefit Plan Disclosure [Line Items]      
Defined Benefit Plan, Fair Value of Plan Assets 3,584    
Fair Value, Inputs, Level 1 [Member] | Hedge Fund, Cash & Other [Member] | Hedge Funds, Multi-strategy [Member] | Non US Plans [Member]      
Defined Benefit Plan Disclosure [Line Items]      
Defined Benefit Plan, Fair Value of Plan Assets 0    
Fair Value, Inputs, Level 1 [Member] | Hedge Fund, Direct Sourcing [Member] | Hedge Funds, Multi-strategy [Member] | Non US Plans [Member]      
Defined Benefit Plan Disclosure [Line Items]      
Defined Benefit Plan, Fair Value of Plan Assets 0    
Fair Value, Inputs, Level 2 [Member] | USPlans [Member]      
Defined Benefit Plan Disclosure [Line Items]      
Defined Benefit Plan, Fair Value of Plan Assets 3,440    
Fair Value, Inputs, Level 2 [Member] | Non US Plans [Member]      
Defined Benefit Plan Disclosure [Line Items]      
Defined Benefit Plan, Fair Value of Plan Assets 515,136    
Fair Value, Inputs, Level 2 [Member] | Short Term Investment Fund [Member] | USPlans [Member]      
Defined Benefit Plan Disclosure [Line Items]      
Defined Benefit Plan, Fair Value of Plan Assets [1] 1,371    
Fair Value, Inputs, Level 2 [Member] | Equity Securities, U K Market [Member] | Equity [Member] | Non US Plans [Member]      
Defined Benefit Plan Disclosure [Line Items]      
Defined Benefit Plan, Fair Value of Plan Assets 194    
Fair Value, Inputs, Level 2 [Member] | Equity Securities, International, Developed [Member] | Equity [Member] | Non US Plans [Member]      
Defined Benefit Plan Disclosure [Line Items]      
Defined Benefit Plan, Fair Value of Plan Assets 2,414    
Fair Value, Inputs, Level 2 [Member] | Equity Securities, international, Emerging [Member] | Equity [Member] | Non US Plans [Member]      
Defined Benefit Plan Disclosure [Line Items]      
Defined Benefit Plan, Fair Value of Plan Assets 0    
Fair Value, Inputs, Level 2 [Member] | Equity Securities, Unquoted Private Equity [Member] | Equity [Member] | Non US Plans [Member]      
Defined Benefit Plan Disclosure [Line Items]      
Defined Benefit Plan, Fair Value of Plan Assets 0    
Fair Value, Inputs, Level 2 [Member] | Cash and Cash Equivalents [Member] | Short Term Investment Fund [Member] | Non US Plans [Member]      
Defined Benefit Plan Disclosure [Line Items]      
Defined Benefit Plan, Fair Value of Plan Assets 8,354    
Fair Value, Inputs, Level 2 [Member] | U S Large Cap [Member] | Equity [Member] | USPlans [Member]      
Defined Benefit Plan Disclosure [Line Items]      
Defined Benefit Plan, Fair Value of Plan Assets 253    
Fair Value, Inputs, Level 2 [Member] | U S Mid Cap [Member] | Equity [Member] | USPlans [Member]      
Defined Benefit Plan Disclosure [Line Items]      
Defined Benefit Plan, Fair Value of Plan Assets 54    
Fair Value, Inputs, Level 2 [Member] | U S Small Cap [Member] | Equity [Member] | USPlans [Member]      
Defined Benefit Plan Disclosure [Line Items]      
Defined Benefit Plan, Fair Value of Plan Assets 192    
Fair Value, Inputs, Level 2 [Member] | International Equity Securities [Member] | Equity [Member] | USPlans [Member]      
Defined Benefit Plan Disclosure [Line Items]      
Defined Benefit Plan, Fair Value of Plan Assets 7    
Fair Value, Inputs, Level 2 [Member] | US Government Corporations and Agencies Securities [Member] | Fixed Income [Member] | USPlans [Member]      
Defined Benefit Plan Disclosure [Line Items]      
Defined Benefit Plan, Fair Value of Plan Assets 520    
Fair Value, Inputs, Level 2 [Member] | High Yield Fixed Income [Member] | Fixed Income [Member] | USPlans [Member]      
Defined Benefit Plan Disclosure [Line Items]      
Defined Benefit Plan, Fair Value of Plan Assets 41    
Fair Value, Inputs, Level 2 [Member] | Real Estate Funds [Member] | Alternative Investment [Member] | USPlans [Member]      
Defined Benefit Plan Disclosure [Line Items]      
Defined Benefit Plan, Fair Value of Plan Assets 1,002    
Fair Value, Inputs, Level 2 [Member] | Commodities Investment [Member] | Leveraged Loans [Member] | Non US Plans [Member]      
Defined Benefit Plan Disclosure [Line Items]      
Defined Benefit Plan, Fair Value of Plan Assets 10,824    
Fair Value, Inputs, Level 2 [Member] | Commodities Investment [Member] | Alternative Investment [Member] | USPlans [Member]      
Defined Benefit Plan Disclosure [Line Items]      
Defined Benefit Plan, Fair Value of Plan Assets 0    
Fair Value, Inputs, Level 2 [Member] | Commodities Investment [Member] | Alternative Investment [Member] | Non US Plans [Member]      
Defined Benefit Plan Disclosure [Line Items]      
Defined Benefit Plan, Fair Value of Plan Assets 335    
Fair Value, Inputs, Level 2 [Member] | Real Estate Funds,Indirect [Domain] | Real Estate Funds [Member] | Non US Plans [Member]      
Defined Benefit Plan Disclosure [Line Items]      
Defined Benefit Plan, Fair Value of Plan Assets 13,440    
Fair Value, Inputs, Level 2 [Member] | Fixed Income, Government/Corporate, U K [Member] | Fixed Income [Member] | Non US Plans [Member]      
Defined Benefit Plan Disclosure [Line Items]      
Defined Benefit Plan, Fair Value of Plan Assets 50,376    
Fair Value, Inputs, Level 2 [Member] | Fixed Income, Government/Corporate, International [Member] | Fixed Income [Member] | Non US Plans [Member]      
Defined Benefit Plan Disclosure [Line Items]      
Defined Benefit Plan, Fair Value of Plan Assets 59,518    
Fair Value, Inputs, Level 2 [Member] | Fixed Income, Government/Corporate, Index Linked [Member] | Fixed Income [Member] | Non US Plans [Member]      
Defined Benefit Plan Disclosure [Line Items]      
Defined Benefit Plan, Fair Value of Plan Assets 0    
Fair Value, Inputs, Level 2 [Member] | Fixed Income, Government/Corporate, Other [Member] | Fixed Income [Member] | Non US Plans [Member]      
Defined Benefit Plan Disclosure [Line Items]      
Defined Benefit Plan, Fair Value of Plan Assets 0    
Fair Value, Inputs, Level 2 [Member] | Fixed Income,Convertible Bonds [Member] | Fixed Income [Member] | Non US Plans [Member]      
Defined Benefit Plan Disclosure [Line Items]      
Defined Benefit Plan, Fair Value of Plan Assets 0    
Fair Value, Inputs, Level 2 [Member] | Real Estate Funds, Direct [Member] | Real Estate Funds [Member] | Non US Plans [Member]      
Defined Benefit Plan Disclosure [Line Items]      
Defined Benefit Plan, Fair Value of Plan Assets 140,764    
Fair Value, Inputs, Level 2 [Member] | Hedge Funds, Equity [Member] | Hedge Funds, Multi-strategy [Member] | Non US Plans [Member]      
Defined Benefit Plan Disclosure [Line Items]      
Defined Benefit Plan, Fair Value of Plan Assets 80,230    
Fair Value, Inputs, Level 2 [Member] | Hedge Fund, Arbitrage&Event [Member] | Hedge Funds, Multi-strategy [Member] | Non US Plans [Member]      
Defined Benefit Plan Disclosure [Line Items]      
Defined Benefit Plan, Fair Value of Plan Assets 92,635    
Fair Value, Inputs, Level 2 [Member] | Hedge Fund, Directional Trading&Fixed Income [Member] | Hedge Funds, Multi-strategy [Member] | Non US Plans [Member]      
Defined Benefit Plan Disclosure [Line Items]      
Defined Benefit Plan, Fair Value of Plan Assets 51,840    
Fair Value, Inputs, Level 2 [Member] | Hedge Fund, Cash & Other [Member] | Hedge Funds, Multi-strategy [Member] | Non US Plans [Member]      
Defined Benefit Plan Disclosure [Line Items]      
Defined Benefit Plan, Fair Value of Plan Assets 2,557    
Fair Value, Inputs, Level 2 [Member] | Hedge Fund, Direct Sourcing [Member] | Hedge Funds, Multi-strategy [Member] | Non US Plans [Member]      
Defined Benefit Plan Disclosure [Line Items]      
Defined Benefit Plan, Fair Value of Plan Assets 1,655    
Fair Value, Inputs, Level 3 [Member] | USPlans [Member]      
Defined Benefit Plan Disclosure [Line Items]      
Defined Benefit Plan, Fair Value of Plan Assets 0    
Fair Value, Inputs, Level 3 [Member] | Non US Plans [Member]      
Defined Benefit Plan Disclosure [Line Items]      
Defined Benefit Plan, Fair Value of Plan Assets 0    
Fair Value, Inputs, Level 3 [Member] | Short Term Investment Fund [Member] | USPlans [Member]      
Defined Benefit Plan Disclosure [Line Items]      
Defined Benefit Plan, Fair Value of Plan Assets [1] 0    
Fair Value, Inputs, Level 3 [Member] | Equity Securities, U K Market [Member] | Equity [Member] | Non US Plans [Member]      
Defined Benefit Plan Disclosure [Line Items]      
Defined Benefit Plan, Fair Value of Plan Assets 0    
Fair Value, Inputs, Level 3 [Member] | Equity Securities, International, Developed [Member] | Equity [Member] | Non US Plans [Member]      
Defined Benefit Plan Disclosure [Line Items]      
Defined Benefit Plan, Fair Value of Plan Assets 0    
Fair Value, Inputs, Level 3 [Member] | Equity Securities, international, Emerging [Member] | Equity [Member] | Non US Plans [Member]      
Defined Benefit Plan Disclosure [Line Items]      
Defined Benefit Plan, Fair Value of Plan Assets 0    
Fair Value, Inputs, Level 3 [Member] | Equity Securities, Unquoted Private Equity [Member] | Equity [Member] | Non US Plans [Member]      
Defined Benefit Plan Disclosure [Line Items]      
Defined Benefit Plan, Fair Value of Plan Assets 0    
Fair Value, Inputs, Level 3 [Member] | Cash and Cash Equivalents [Member] | Short Term Investment Fund [Member] | Non US Plans [Member]      
Defined Benefit Plan Disclosure [Line Items]      
Defined Benefit Plan, Fair Value of Plan Assets 0    
Fair Value, Inputs, Level 3 [Member] | U S Large Cap [Member] | Equity [Member] | USPlans [Member]      
Defined Benefit Plan Disclosure [Line Items]      
Defined Benefit Plan, Fair Value of Plan Assets 0    
Fair Value, Inputs, Level 3 [Member] | U S Mid Cap [Member] | Equity [Member] | USPlans [Member]      
Defined Benefit Plan Disclosure [Line Items]      
Defined Benefit Plan, Fair Value of Plan Assets 0    
Fair Value, Inputs, Level 3 [Member] | U S Small Cap [Member] | Equity [Member] | USPlans [Member]      
Defined Benefit Plan Disclosure [Line Items]      
Defined Benefit Plan, Fair Value of Plan Assets 0    
Fair Value, Inputs, Level 3 [Member] | International Equity Securities [Member] | Equity [Member] | USPlans [Member]      
Defined Benefit Plan Disclosure [Line Items]      
Defined Benefit Plan, Fair Value of Plan Assets 0    
Fair Value, Inputs, Level 3 [Member] | US Government Corporations and Agencies Securities [Member] | Fixed Income [Member] | USPlans [Member]      
Defined Benefit Plan Disclosure [Line Items]      
Defined Benefit Plan, Fair Value of Plan Assets 0    
Fair Value, Inputs, Level 3 [Member] | High Yield Fixed Income [Member] | Fixed Income [Member] | USPlans [Member]      
Defined Benefit Plan Disclosure [Line Items]      
Defined Benefit Plan, Fair Value of Plan Assets 0    
Fair Value, Inputs, Level 3 [Member] | Real Estate Funds [Member] | Alternative Investment [Member] | USPlans [Member]      
Defined Benefit Plan Disclosure [Line Items]      
Defined Benefit Plan, Fair Value of Plan Assets 0    
Fair Value, Inputs, Level 3 [Member] | Commodities Investment [Member] | Leveraged Loans [Member] | Non US Plans [Member]      
Defined Benefit Plan Disclosure [Line Items]      
Defined Benefit Plan, Fair Value of Plan Assets 0    
Fair Value, Inputs, Level 3 [Member] | Commodities Investment [Member] | Alternative Investment [Member] | USPlans [Member]      
Defined Benefit Plan Disclosure [Line Items]      
Defined Benefit Plan, Fair Value of Plan Assets 0    
Fair Value, Inputs, Level 3 [Member] | Commodities Investment [Member] | Alternative Investment [Member] | Non US Plans [Member]      
Defined Benefit Plan Disclosure [Line Items]      
Defined Benefit Plan, Fair Value of Plan Assets 0    
Fair Value, Inputs, Level 3 [Member] | Real Estate Funds,Indirect [Domain] | Real Estate Funds [Member] | Non US Plans [Member]      
Defined Benefit Plan Disclosure [Line Items]      
Defined Benefit Plan, Fair Value of Plan Assets 0    
Fair Value, Inputs, Level 3 [Member] | Fixed Income, Government/Corporate, U K [Member] | Fixed Income [Member] | Non US Plans [Member]      
Defined Benefit Plan Disclosure [Line Items]      
Defined Benefit Plan, Fair Value of Plan Assets 0    
Fair Value, Inputs, Level 3 [Member] | Fixed Income, Government/Corporate, International [Member] | Fixed Income [Member] | Non US Plans [Member]      
Defined Benefit Plan Disclosure [Line Items]      
Defined Benefit Plan, Fair Value of Plan Assets 0    
Fair Value, Inputs, Level 3 [Member] | Fixed Income, Government/Corporate, Index Linked [Member] | Fixed Income [Member] | Non US Plans [Member]      
Defined Benefit Plan Disclosure [Line Items]      
Defined Benefit Plan, Fair Value of Plan Assets 0    
Fair Value, Inputs, Level 3 [Member] | Fixed Income, Government/Corporate, Other [Member] | Fixed Income [Member] | Non US Plans [Member]      
Defined Benefit Plan Disclosure [Line Items]      
Defined Benefit Plan, Fair Value of Plan Assets 0    
Fair Value, Inputs, Level 3 [Member] | Fixed Income,Convertible Bonds [Member] | Fixed Income [Member] | Non US Plans [Member]      
Defined Benefit Plan Disclosure [Line Items]      
Defined Benefit Plan, Fair Value of Plan Assets 0    
Fair Value, Inputs, Level 3 [Member] | Real Estate Funds, Direct [Member] | Real Estate Funds [Member] | Non US Plans [Member]      
Defined Benefit Plan Disclosure [Line Items]      
Defined Benefit Plan, Fair Value of Plan Assets 0    
Fair Value, Inputs, Level 3 [Member] | Hedge Funds, Equity [Member] | Hedge Funds, Multi-strategy [Member] | Non US Plans [Member]      
Defined Benefit Plan Disclosure [Line Items]      
Defined Benefit Plan, Fair Value of Plan Assets 0    
Fair Value, Inputs, Level 3 [Member] | Hedge Fund, Arbitrage&Event [Member] | Hedge Funds, Multi-strategy [Member] | Non US Plans [Member]      
Defined Benefit Plan Disclosure [Line Items]      
Defined Benefit Plan, Fair Value of Plan Assets 0    
Fair Value, Inputs, Level 3 [Member] | Hedge Fund, Directional Trading&Fixed Income [Member] | Hedge Funds, Multi-strategy [Member] | Non US Plans [Member]      
Defined Benefit Plan Disclosure [Line Items]      
Defined Benefit Plan, Fair Value of Plan Assets 0    
Fair Value, Inputs, Level 3 [Member] | Hedge Fund, Cash & Other [Member] | Hedge Funds, Multi-strategy [Member] | Non US Plans [Member]      
Defined Benefit Plan Disclosure [Line Items]      
Defined Benefit Plan, Fair Value of Plan Assets 0    
Fair Value, Inputs, Level 3 [Member] | Hedge Fund, Direct Sourcing [Member] | Hedge Funds, Multi-strategy [Member] | Non US Plans [Member]      
Defined Benefit Plan Disclosure [Line Items]      
Defined Benefit Plan, Fair Value of Plan Assets 0    
Estimate of Fair Value Measurement [Member] | USPlans [Member]      
Defined Benefit Plan Disclosure [Line Items]      
Defined Benefit Plan, Fair Value of Plan Assets 15,887    
Estimate of Fair Value Measurement [Member] | Non US Plans [Member]      
Defined Benefit Plan Disclosure [Line Items]      
Defined Benefit Plan, Fair Value of Plan Assets 1,287,723    
Estimate of Fair Value Measurement [Member] | Short Term Investment Fund [Member] | USPlans [Member]      
Defined Benefit Plan Disclosure [Line Items]      
Defined Benefit Plan, Fair Value of Plan Assets [1] 1,371    
Estimate of Fair Value Measurement [Member] | Equity Securities, U K Market [Member] | Equity [Member] | Non US Plans [Member]      
Defined Benefit Plan Disclosure [Line Items]      
Defined Benefit Plan, Fair Value of Plan Assets 91,269    
Estimate of Fair Value Measurement [Member] | Equity Securities, International, Developed [Member] | Equity [Member] | Non US Plans [Member]      
Defined Benefit Plan Disclosure [Line Items]      
Defined Benefit Plan, Fair Value of Plan Assets 147,278    
Estimate of Fair Value Measurement [Member] | Equity Securities, international, Emerging [Member] | Equity [Member] | Non US Plans [Member]      
Defined Benefit Plan Disclosure [Line Items]      
Defined Benefit Plan, Fair Value of Plan Assets 6,375    
Estimate of Fair Value Measurement [Member] | Equity Securities, Unquoted Private Equity [Member] | Equity [Member] | Non US Plans [Member]      
Defined Benefit Plan Disclosure [Line Items]      
Defined Benefit Plan, Fair Value of Plan Assets 759    
Estimate of Fair Value Measurement [Member] | Cash and Cash Equivalents [Member] | Short Term Investment Fund [Member] | Non US Plans [Member]      
Defined Benefit Plan Disclosure [Line Items]      
Defined Benefit Plan, Fair Value of Plan Assets 73,005    
Estimate of Fair Value Measurement [Member] | U S Large Cap [Member] | Equity [Member] | USPlans [Member]      
Defined Benefit Plan Disclosure [Line Items]      
Defined Benefit Plan, Fair Value of Plan Assets 3,402    
Estimate of Fair Value Measurement [Member] | U S Mid Cap [Member] | Equity [Member] | USPlans [Member]      
Defined Benefit Plan Disclosure [Line Items]      
Defined Benefit Plan, Fair Value of Plan Assets 437    
Estimate of Fair Value Measurement [Member] | U S Small Cap [Member] | Equity [Member] | USPlans [Member]      
Defined Benefit Plan Disclosure [Line Items]      
Defined Benefit Plan, Fair Value of Plan Assets 575    
Estimate of Fair Value Measurement [Member] | International Equity Securities [Member] | Equity [Member] | USPlans [Member]      
Defined Benefit Plan Disclosure [Line Items]      
Defined Benefit Plan, Fair Value of Plan Assets 2,298    
Estimate of Fair Value Measurement [Member] | US Government Corporations and Agencies Securities [Member] | Fixed Income [Member] | USPlans [Member]      
Defined Benefit Plan Disclosure [Line Items]      
Defined Benefit Plan, Fair Value of Plan Assets 4,831    
Estimate of Fair Value Measurement [Member] | High Yield Fixed Income [Member] | Fixed Income [Member] | USPlans [Member]      
Defined Benefit Plan Disclosure [Line Items]      
Defined Benefit Plan, Fair Value of Plan Assets 819    
Estimate of Fair Value Measurement [Member] | Real Estate Funds [Member] | Alternative Investment [Member] | USPlans [Member]      
Defined Benefit Plan Disclosure [Line Items]      
Defined Benefit Plan, Fair Value of Plan Assets 1,773    
Estimate of Fair Value Measurement [Member] | Commodities Investment [Member] | Leveraged Loans [Member] | Non US Plans [Member]      
Defined Benefit Plan Disclosure [Line Items]      
Defined Benefit Plan, Fair Value of Plan Assets 10,824    
Estimate of Fair Value Measurement [Member] | Commodities Investment [Member] | Alternative Investment [Member] | USPlans [Member]      
Defined Benefit Plan Disclosure [Line Items]      
Defined Benefit Plan, Fair Value of Plan Assets 381    
Estimate of Fair Value Measurement [Member] | Commodities Investment [Member] | Alternative Investment [Member] | Non US Plans [Member]      
Defined Benefit Plan Disclosure [Line Items]      
Defined Benefit Plan, Fair Value of Plan Assets 12,397    
Estimate of Fair Value Measurement [Member] | Real Estate Funds,Indirect [Domain] | Real Estate Funds [Member] | Non US Plans [Member]      
Defined Benefit Plan Disclosure [Line Items]      
Defined Benefit Plan, Fair Value of Plan Assets 13,617    
Estimate of Fair Value Measurement [Member] | Fixed Income, Government/Corporate, U K [Member] | Fixed Income [Member] | Non US Plans [Member]      
Defined Benefit Plan Disclosure [Line Items]      
Defined Benefit Plan, Fair Value of Plan Assets 168,708    
Estimate of Fair Value Measurement [Member] | Fixed Income, Government/Corporate, International [Member] | Fixed Income [Member] | Non US Plans [Member]      
Defined Benefit Plan Disclosure [Line Items]      
Defined Benefit Plan, Fair Value of Plan Assets 126,735    
Estimate of Fair Value Measurement [Member] | Fixed Income, Government/Corporate, Index Linked [Member] | Fixed Income [Member] | Non US Plans [Member]      
Defined Benefit Plan Disclosure [Line Items]      
Defined Benefit Plan, Fair Value of Plan Assets 258,502    
Estimate of Fair Value Measurement [Member] | Fixed Income, Government/Corporate, Other [Member] | Fixed Income [Member] | Non US Plans [Member]      
Defined Benefit Plan Disclosure [Line Items]      
Defined Benefit Plan, Fair Value of Plan Assets 3,518    
Estimate of Fair Value Measurement [Member] | Fixed Income,Convertible Bonds [Member] | Fixed Income [Member] | Non US Plans [Member]      
Defined Benefit Plan Disclosure [Line Items]      
Defined Benefit Plan, Fair Value of Plan Assets 1,471    
Estimate of Fair Value Measurement [Member] | Real Estate Funds, Direct [Member] | Real Estate Funds [Member] | Non US Plans [Member]      
Defined Benefit Plan Disclosure [Line Items]      
Defined Benefit Plan, Fair Value of Plan Assets 140,764    
Estimate of Fair Value Measurement [Member] | Hedge Funds, Equity [Member] | Hedge Funds, Multi-strategy [Member] | Non US Plans [Member]      
Defined Benefit Plan Disclosure [Line Items]      
Defined Benefit Plan, Fair Value of Plan Assets 80,230    
Estimate of Fair Value Measurement [Member] | Hedge Fund, Arbitrage&Event [Member] | Hedge Funds, Multi-strategy [Member] | Non US Plans [Member]      
Defined Benefit Plan Disclosure [Line Items]      
Defined Benefit Plan, Fair Value of Plan Assets 92,635    
Estimate of Fair Value Measurement [Member] | Hedge Fund, Directional Trading&Fixed Income [Member] | Hedge Funds, Multi-strategy [Member] | Non US Plans [Member]      
Defined Benefit Plan Disclosure [Line Items]      
Defined Benefit Plan, Fair Value of Plan Assets 55,424    
Estimate of Fair Value Measurement [Member] | Hedge Fund, Cash & Other [Member] | Hedge Funds, Multi-strategy [Member] | Non US Plans [Member]      
Defined Benefit Plan Disclosure [Line Items]      
Defined Benefit Plan, Fair Value of Plan Assets 2,557    
Estimate of Fair Value Measurement [Member] | Hedge Fund, Direct Sourcing [Member] | Hedge Funds, Multi-strategy [Member] | Non US Plans [Member]      
Defined Benefit Plan Disclosure [Line Items]      
Defined Benefit Plan, Fair Value of Plan Assets $ 1,655    
[1] Represents collective short term investment fund, composed of high-grade money market instruments with short maturities.