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Related Party Transactions (Tables)
 12 Months Ended
Dec. 31, 2019
Related Party Transactions [Abstract]  
Schedule of Related Party Transactions
Sales to and purchases from unconsolidated entities for 2019, 2018 and 2017 are as follows:
(in millions)
 
2019
 
2018
 
2017
Sales to unconsolidated affiliates
 
$
10

 
$
10

 
$
12

Purchases from unconsolidated affiliates
 
22

 
22

 
17