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Balance Sheet Details - Schedule of Short-Term Marketable Securities (Details) - USD ($) $ in Millions | Dec. 31, 2022 | Dec. 31, 2021
--- | --- | ---
Condensed Financial Statements, Captions [Line Items] |  |
Amortized Cost | $ 1,819.0 | $ 1,680.6
Gross Unrealized Gains | 0.2 | 0.0
Gross Unrealized Losses | (5.3) | (2.0)
Estimated Market Value | 1,813.9 | 1,678.6
U.S. government agencies |  |
Condensed Financial Statements, Captions [Line Items] |  |
Amortized Cost | 1,535.1 | 1,212.1
Gross Unrealized Gains | 0.2 | 0.0
Gross Unrealized Losses | (4.6) | (1.5)
Estimated Market Value | 1,530.7 | 1,210.6
Commercial paper |  |
Condensed Financial Statements, Captions [Line Items] |  |
Amortized Cost | 119.6 | 189.8
Gross Unrealized Gains | 0.0 | 0.0
Gross Unrealized Losses | (0.2) | (0.1)
Estimated Market Value | 119.4 | 189.7
Corporate debt |  |
Condensed Financial Statements, Captions [Line Items] |  |
Amortized Cost | 164.3 | 224.6
Gross Unrealized Gains | 0.0 | 0.0
Gross Unrealized Losses | (0.5) | (0.3)
Estimated Market Value | 163.8 | 224.3
Supranationals |  |
Condensed Financial Statements, Captions [Line Items] |  |
Amortized Cost | 0.0 | 54.1
Gross Unrealized Gains | 0.0 | 0.0
Gross Unrealized Losses | 0.0 | (0.1)
Estimated Market Value | $ 0.0 | $ 54.0

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