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Fair Value Measurements - Additional Information (Details) | Mar. 31, 2021 USD ($)
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Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] |
Fair value assets transferred from level 1 to level 2 | $ 0
Fair value assets transferred from level 2 to level 1 | 0
Fair value liabilities transferred from level 1 to level 2 | 0
Fair value liabilities transferred from level 2 to level 1 | 0
Level 2 Securities | 2025 Notes |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] |
Convertible notes | 2,400,000,000
Level 2 Securities | 2026 Notes |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] |
Convertible notes | $ 3,000,000,000.0

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