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Business Segment Information (Schedule of Selected Geographic Information) (Details) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Segment Reporting Information [Line Items]      
Total revenues $ 7,339 $ 5,767 $ 5,639
Property, plant & equipment, net 136 130  
United States      
Segment Reporting Information [Line Items]      
Total revenues 4,923 3,031 2,705
Property, plant & equipment, net 70 70  
Middle East      
Segment Reporting Information [Line Items]      
Total revenues 590 857 1,027
Europe      
Segment Reporting Information [Line Items]      
Total revenues 1,039 961 1,058
Australia      
Segment Reporting Information [Line Items]      
Total revenues 367 324 288
Canada      
Segment Reporting Information [Line Items]      
Total revenues 3 46 39
Africa      
Segment Reporting Information [Line Items]      
Total revenues 179 152 197
Asia      
Segment Reporting Information [Line Items]      
Total revenues 199 203 214
United Kingdom      
Segment Reporting Information [Line Items]      
Property, plant & equipment, net 49 45  
Other countries      
Segment Reporting Information [Line Items]      
Total revenues 39 193 $ 111
Property, plant & equipment, net $ 17 $ 15