XML 81 R66.htm IDEA: XBRL DOCUMENT v3.10.0.1
Derivative Financial Instruments - Additional Information (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2018
Dec. 31, 2017
Dec. 31, 2016
Derivative [Line Items]      
Notional amounts on foreign currency exchange contracts $ 2,200 $ 2,800  
Gain (Loss) on Discontinuance of Cash Flow Hedges $ 0 $ 0 $ 0
Maximum      
Derivative [Line Items]      
Maturity on derivative instruments 18 months    
Estimate of time to transfer 12 months