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Marketable Securities - Schedule of Debt Securities Based on Contractual Maturity Dates (Details) - USD ($)
$ in Millions
Sep. 30, 2022
Dec. 31, 2021
Investments, Debt and Equity Securities [Abstract]    
Maturities within one year $ 3,530.4 $ 2,809.1
Maturities after one year through five years 4,839.2 5,588.1
Total $ 8,369.6 $ 8,397.2