Other Financial Information - Inventories (Details) - USD ($) $ in Millions		Dec. 31, 2021	Dec. 31, 2020
Other Financial Information [Abstract]
Finished goods		$ 3,641	$ 2,867
Work in process		4,424	4,436
Raw materials and supplies		994	716
Inventories	[1]	9,059	8,020
Noncurrent inventories not included above	[2]	$ 939	$ 890

[1] The change from December 31, 2020 reflects increases for certain products, including inventory build for new product launches (primarily Comirnaty), network strategy and supply recovery, partially offset by decreases due to market demand.

[2] Included in Other noncurrent assets. There are no recoverability issues for these amounts.