v3.26.1
Marketable Securities and Other Investments - Available-for-Sale Debt Securities at Fair Value (Details) - USD ($)
$ in Millions
Jun. 30, 2026
Dec. 31, 2025
Debt Securities, Available-for-sale [Line Items]    
Total cash equivalents and marketable securities, fair value $ 10,154.9 $ 10,014.7
Balance Sheet Location [Axis]: us-gaap:CashAndCashEquivalentsAtCarryingValue    
Debt Securities, Available-for-sale [Line Items]    
Total cash equivalents and marketable securities, fair value 2,656.9 2,779.1
Balance Sheet Location [Axis]: us-gaap:MarketableSecuritiesCurrent    
Debt Securities, Available-for-sale [Line Items]    
Total cash equivalents and marketable securities, fair value 1,708.9 1,523.3
Balance Sheet Location [Axis]: us-gaap:MarketableSecuritiesNoncurrent    
Debt Securities, Available-for-sale [Line Items]    
Total cash equivalents and marketable securities, fair value $ 5,789.1 $ 5,712.3