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Changes in Accumulated Other Comprehensive Loss (Tables)
12 Months Ended
Dec. 31, 2019
Changes in Accumulated Other Comprehensive Loss [Abstract]  
Schedule of Accumulated Other Comprehensive Income (Loss)
Translation Adjustments, Net of TaxPost-Retirement Benefits and Other, Net of TaxTotal
(in millions)
Balance, December 31, 2018$(38) $(47) $(85) 
Other comprehensive loss before reclassifications, net of tax
(2) —  (2) 
Reclassifications from accumulated other comprehensive loss to earnings, net of tax
—    
Other comprehensive (loss) income, net of tax(2)   
Elimination of stranded tax effects resulting from tax legislation—  (5) (5) 
Balance, December 31, 2019$(40) $(49) $(89)