XML 20 R55.htm IDEA: XBRL DOCUMENT v2.4.0.8
Customer Financing (Financing Receivable Credit Quality Indicators) (Details) (USD $)
In Millions, unless otherwise specified
Mar. 31, 2014
Dec. 31, 2013
Financing Receivable, Recorded Investment [Line Items]    
Carrying value of financing receivables $ 2,137 $ 2,286
B B B Credit Rating [Member]
   
Financing Receivable, Recorded Investment [Line Items]    
Carrying value of financing receivables 1,065 1,091
B B Credit Rating [Member]
   
Financing Receivable, Recorded Investment [Line Items]    
Carrying value of financing receivables 50 58
B Credit Rating [Member]
   
Financing Receivable, Recorded Investment [Line Items]    
Carrying value of financing receivables 727 585
C C C Credit Rating [Member]
   
Financing Receivable, Recorded Investment [Line Items]    
Carrying value of financing receivables 198 457
Other Credit Rating [Member]
   
Financing Receivable, Recorded Investment [Line Items]    
Carrying value of financing receivables $ 97 $ 95