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Property, Plant, and Equipment (Tables)
12 Months Ended
Dec. 31, 2020
Property, Plant and Equipment [Abstract]  
Details of Impairment of Long-Lived Assets Held and Used by Asset The table below details the Successor long-lived asset impairments by asset and segment recognized for the year ended December 31, 2020.
(Dollars in millions)Western HemisphereEastern HemisphereTotal
Property, Plant and Equipment$316 $255 $571 
Intangible Assets43 112 155 
Right of Use Assets56 32 88 
Total Impairment Charges$415 $399 $814