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Financial Instruments - Summary Of Cash And Available-For-Sale Securities (Details) - USD ($) $ in Millions | Dec. 31, 2022 | Dec. 31, 2021
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Schedule of Available-for-sale Securities [Line Items] |  |
Cash and Cash Equivalents | $ 1,581.2 | $ 1,290.9
Total | 5,359.9 |
Total assets measured at fair value, Amortized Cost | 6,941.1 | 8,640.8
Gross Unrealized Gains | 0.0 | 9.9
Gross Unrealized Losses | (198.5) | (31.2)
Allowance for Credit Loss | (1.1) | 0.0
Total | 5,160.3 |
Total assets measured at fair value, Fair Value | 6,741.5 | 8,619.5
Short-term Investments | 2,536.7 | 2,913.1
Long-term Investments | 2,623.6 | 4,415.5
Cash |  |
Schedule of Available-for-sale Securities [Line Items] |  |
Cash and Cash Equivalents | 497.2 | 572.3
Fair Value | 497.2 | 572.3
Level 1: |  |
Schedule of Available-for-sale Securities [Line Items] |  |
Cash and Cash Equivalents | 1,084.0 | 713.6
Total | 3,799.2 | 4,125.7
Gross Unrealized Gains | 0.0 | 6.3
Gross Unrealized Losses | (96.6) | (15.4)
Allowance for Credit Loss | 0.0 | 0.0
Total | 3,702.6 | 4,116.6
Short-term Investments | 1,542.4 | 1,100.3
Long-term Investments | 1,076.2 | 2,302.7
Level 1: | Money market funds |  |
Schedule of Available-for-sale Securities [Line Items] |  |
Cash and Cash Equivalents | 1,084.0 | 696.6
Fair Value | 1,084.0 | 696.6
Short-term Investments | 0.0 | 0.0
Long-term Investments | 0.0 | 0.0
Level 1: | U.S. treasuries |  |
Schedule of Available-for-sale Securities [Line Items] |  |
Cash and Cash Equivalents | 0.0 | 17.0
Total | 2,715.2 | 3,429.1
Gross Unrealized Gains | 0.0 | 6.3
Gross Unrealized Losses | (96.6) | (15.4)
Allowance for Credit Loss | 0.0 | 0.0
Total | 2,618.6 | 3,420.0
Short-term Investments | 1,542.4 | 1,100.3
Long-term Investments | 1,076.2 | 2,302.7
Level 2: |  |
Schedule of Available-for-sale Securities [Line Items] |  |
Cash and Cash Equivalents | 0.0 | 5.0
Total | 2,644.7 | 3,942.8
Gross Unrealized Gains | 0.0 | 3.6
Gross Unrealized Losses | (101.9) | (15.8)
Allowance for Credit Loss | (1.1) | 0.0
Total | 2,541.7 | 3,930.6
Short-term Investments | 994.3 | 1,812.8
Long-term Investments | 1,547.4 | 2,112.8
Level 2: | Commercial paper |  |
Schedule of Available-for-sale Securities [Line Items] |  |
Cash and Cash Equivalents | 0.0 | 0.0
Total | 20.0 | 717.7
Gross Unrealized Gains | 0.0 | 0.0
Gross Unrealized Losses | 0.0 | 0.0
Allowance for Credit Loss | 0.0 | 0.0
Total | 20.0 | 717.7
Short-term Investments | 20.0 | 717.7
Long-term Investments | 0.0 | 0.0
Level 2: | Corporate debt securities |  |
Schedule of Available-for-sale Securities [Line Items] |  |
Cash and Cash Equivalents | 0.0 | 5.0
Total | 2,022.0 | 2,485.6
Gross Unrealized Gains | 0.0 | 2.7
Gross Unrealized Losses | (76.0) | (11.9)
Allowance for Credit Loss | (1.1) | 0.0
Total | 1,944.9 | 2,476.4
Short-term Investments | 651.8 | 886.7
Long-term Investments | 1,293.1 | 1,584.7
Level 2: | U.S. government agencies |  |
Schedule of Available-for-sale Securities [Line Items] |  |
Cash and Cash Equivalents | 0.0 | 0.0
Total | 447.2 | 526.1
Gross Unrealized Gains | 0.0 | 0.2
Gross Unrealized Losses | (19.9) | (2.9)
Allowance for Credit Loss | 0.0 | 0.0
Total | 427.3 | 523.4
Short-term Investments | 247.8 | 137.8
Long-term Investments | 179.5 | 385.6
Level 2: | Municipal securities |  |
Schedule of Available-for-sale Securities [Line Items] |  |
Cash and Cash Equivalents | 0.0 | 0.0
Total | 155.5 | 213.4
Gross Unrealized Gains | 0.0 | 0.7
Gross Unrealized Losses | (6.0) | (1.0)
Allowance for Credit Loss | 0.0 | 0.0
Total | 149.5 | 213.1
Short-term Investments | 74.7 | 70.6
Long-term Investments | $ 74.8 | $ 142.5

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