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Realignment Charges (Tables)
3 Months Ended
Mar. 31, 2019
Realignment Charges [Abstract]  
Realignment Charges Realignment charges were as follows:
 
Three Months Ended
March 31,
 
2019
 
2018
 
(in millions)
Executive Transition Costs
$
2

 
$

Lease termination costs

 
1

Total realignment costs
$
2

 
$
1