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Basis Of Presentation And Summary Of Significant Accounting Policies - Additional Information (Detail) - USD ($)
$ in Millions
3 Months Ended
Mar. 31, 2016
Dec. 31, 2015
Organization Consolidation And Presentation Of Financial Statements Disclosure [Line Items]    
Minimum Percentage of Ownership in Investments for Consolidation 50.00%  
Maximum exposures to accounts receivable factoring and securitization facilities $ 4 $ 11
Minimum [Member] | Equity Method Investments [Member]    
Organization Consolidation And Presentation Of Financial Statements Disclosure [Line Items]    
Percentage of investment in affiliates 20.00%  
Maximum [Member]    
Organization Consolidation And Presentation Of Financial Statements Disclosure [Line Items]    
Percentage of investment in affiliates 50.00% 100.00%
Maximum [Member] | Cost Method Investments [Member]    
Organization Consolidation And Presentation Of Financial Statements Disclosure [Line Items]    
Percentage of investment in affiliates 20.00%