XML 55 R44.htm IDEA: XBRL DOCUMENT v3.21.2
Inventories (Details) - USD ($)
$ in Millions
Jun. 30, 2021
Dec. 31, 2020
Inventory Disclosure [Abstract]    
Raw materials $ 641 $ 486
Work in process 2,443 2,437
Finished goods 1,031 970
Total inventories $ 4,115 $ 3,893