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Contingencies (Details)
$ in Millions
Oct. 09, 2018
USD ($)
plaintiff
Mar. 31, 2019
USD ($)
Sep. 14, 2018
lawsuit
Loss contingencies [Line Items]      
Number of lawsuits (in lawsuits) | lawsuit     2
Number of plaintiffs (in plaintiffs) | plaintiff 4    
Loss contingency, range of possible loss, portion not accrued   $ 100  
Damages from product defects      
Loss contingencies [Line Items]      
Loss contingencies, estimate of possible loss   208  
Indemnification agreement      
Loss contingencies [Line Items]      
Loss contingencies, estimate of possible loss   $ 164  
Minimum      
Loss contingencies [Line Items]      
Damages sought $ 10    
Maximum      
Loss contingencies [Line Items]      
Damages sought $ 100