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Summary Of Significant Accounting Policies (Narrative) (Details) (USD $)
In Millions, unless otherwise specified
12 Months Ended
Dec. 31, 2013
Dec. 31, 2012
Dec. 31, 2011
Accounting Policies [Abstract]      
Restricted cash $ 63 $ 63  
Equity securities minimum restriction period 1 year    
Summary Of Significant Accounting Policies [Line Items]      
Minimum contractual term for trade receivables 1 year    
Advertising expenses $ 95 $ 95 $ 98
Minimum [Member]
     
Summary Of Significant Accounting Policies [Line Items]      
Intangible assets estimated useful lives 1 year    
Maximum
     
Summary Of Significant Accounting Policies [Line Items]      
Intangible assets estimated useful lives 10 years    
Building and Building Equipment | Minimum [Member]
     
Summary Of Significant Accounting Policies [Line Items]      
Minimum useful life, years 5 years    
Building and Building Equipment | Maximum
     
Summary Of Significant Accounting Policies [Line Items]      
Minimum useful life, years 40 years    
Machinery And Equipment | Minimum [Member]
     
Summary Of Significant Accounting Policies [Line Items]      
Minimum useful life, years 2 years    
Machinery And Equipment | Maximum
     
Summary Of Significant Accounting Policies [Line Items]      
Minimum useful life, years 10 years