XML 114 R94.htm IDEA: XBRL DOCUMENT v3.3.1.900
Long-Term Debt (Receivables Facility Narrative) (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2015
Dec. 31, 2014
Mar. 07, 2013
Mar. 21, 2012
Debt Instrument [Line Items]        
Debt $ 17,051 $ 16,916    
Receivables Facility, Name [Member] | Receivables Facility [Member]        
Debt Instrument [Line Items]        
Debt Instrument, Issuance Date Mar. 21, 2012      
Maximum Borrowing Capacity of Receivables Facility       $ 300
Debt $ 700 $ 614    
Receivables Facility, March 7, 2013 Amendment [Member] | Receivables Facility [Member]        
Debt Instrument [Line Items]        
Debt Instrument, Issuance Date Mar. 07, 2013      
Maximum Borrowing Capacity of Receivables Facility     $ 500  
Receivables Facility, November 13, 2015 Amendment [Member] | Receivables Facility [Member]        
Debt Instrument [Line Items]        
Debt Instrument, Maturity Date Nov. 13, 2017      
Maximum Borrowing Capacity of Receivables Facility $ 700      
Debt 700      
Receivables included in the Receivables Facility $ 1,700