v3.22.0.1
Financial Instruments (Contractual Maturity Date of Marketable Debt Securities) (Details)
$ in Millions
Dec. 31, 2021
USD ($)
Fair Value Disclosures [Abstract]  
Due in 1 year or less $ 16,192
Due in 1 year through 5 years 78,625
Due in 5 years through 10 years 4,675
Due after 10 years 12,864
Total $ 112,356