v3.20.4
Summary of Significant Accounting Policies - Schedule of Inventories (Details) - USD ($)
$ in Millions
Dec. 31, 2020
Dec. 31, 2019
Accounting Policies [Abstract]    
Finished goods $ 1,318 $ 485
Work-in-process 1,201 942
Raw materials 791 386
Inventories $ 3,310 $ 1,813