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Inventory (Details 1) - USD ($)
$ in Millions
Dec. 31, 2020
Dec. 31, 2019
Inventory By Platform [Abstract]    
Total capitalized pre-production $ 26.3 $ 28.4
Forward loss provision(4) (184.6) (83.9)
Total inventory, net $ 1,422.3 $ 1,118.8