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Other Non-Operating Income, Net
 12 Months Ended
Dec. 31, 2020
Other Income and Expenses [Abstract]  
Other Non-Operating Income, Net Other Non-Operating (Expense) Income, Net
The components of other non-operating income, net are as follows:
Year Ended December 31,
(in millions)202020192018
Interest income$7 $5 $4 
Income from joint ventures2 3 5 
Other (expense) income – net (14)(12)4 
Total other non-operating (expense) income, net$(5)$(4)$13