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Basis of Presentation (Balance Sheet Additional Disclosure) (Details) - USD ($)
$ in Millions
Jun. 30, 2021
Dec. 31, 2020
Organization, Consolidation and Presentation of Financial Statements [Abstract]    
Current maturities of long-term debt $ 14 $ 12
Reserve for estimated losses on uncompleted contracts 18 16
Retainage payable 13 22
Income taxes payable 7 16
Restructuring reserve 24 32
Value-added tax payable 43 29
Dividend payable 16 14
Other miscellaneous liabilities 63 52
Total other current liabilities $ 198 $ 193