XML 41 R29.htm IDEA: XBRL DOCUMENT v3.8.0.1
Derivative Instruments (Forward Currency Exchange Contracts) (Details) - Foreign Exchange Contract - USD ($)
$ in Millions
9 Months Ended 12 Months Ended
Sep. 30, 2017
Dec. 31, 2016
Derivative [Line Items]    
Notional Amount $ 4,673 $ 3,899
Maximum Term (Days) 548 days 548 days
Derivative, Fair Value, Net $ (3) $ 27
Other current assets    
Derivative [Line Items]    
Derivative Asset, Fair Value, Gross Asset 37 41
Other noncurrent assets    
Derivative [Line Items]    
Derivative Asset, Fair Value, Gross Asset 1 4
Other current liabilities    
Derivative [Line Items]    
Derivative Liability, Fair Value, Gross Liability (40) (16)
Other noncurrent liabilities    
Derivative [Line Items]    
Derivative Liability, Fair Value, Gross Liability (1) (2)
Designated    
Derivative [Line Items]    
Notional Amount 1,185 1,058
Derivative, Fair Value, Net (22) 17
Designated | Other current assets    
Derivative [Line Items]    
Derivative Asset, Fair Value, Gross Asset 13 24
Designated | Other noncurrent assets    
Derivative [Line Items]    
Derivative Asset, Fair Value, Gross Asset 1 4
Designated | Other current liabilities    
Derivative [Line Items]    
Derivative Liability, Fair Value, Gross Liability (35) (9)
Designated | Other noncurrent liabilities    
Derivative [Line Items]    
Derivative Liability, Fair Value, Gross Liability (1) (2)
Non-Designated    
Derivative [Line Items]    
Notional Amount 3,488 2,841
Derivative, Fair Value, Net 19 10
Non-Designated | Other current assets    
Derivative [Line Items]    
Derivative Asset, Fair Value, Gross Asset 24 17
Non-Designated | Other noncurrent assets    
Derivative [Line Items]    
Derivative Asset, Fair Value, Gross Asset 0 0
Non-Designated | Other current liabilities    
Derivative [Line Items]    
Derivative Liability, Fair Value, Gross Liability (5) (7)
Non-Designated | Other noncurrent liabilities    
Derivative [Line Items]    
Derivative Liability, Fair Value, Gross Liability $ 0 $ 0