v3.25.2
Fair Value Measurements
6 Months Ended
Jun. 30, 2025
Fair Value Disclosures [Abstract]  
Fair Value Measurements Fair Value Measurements
The table below summarizes the Company's assets and liabilities which are measured at fair value on a recurring basis. The following fair value hierarchy is used to classify assets and liabilities, based on inputs to valuation techniques utilized to measure fair value:
Level 1 - Quoted prices in active markets for identical assets or liabilities
Level 2 - Significant other observable inputs, such as quoted market prices for similar instruments in active markets, quoted prices for identical or similar instruments in markets that are not active, or model-based valuations in which significant inputs used are observable
Level 3 - Significant other unobservable inputs
(In millions)Fair Value Measurements at Reporting Date
As of June 30, 2025
Fair ValueLevel 1Level 2
Level 3
Assets:
Cash equivalents$850.1 $224.1 $626.0 $— 
Available-for-sale debt securities:
Corporate bonds8,959.5 — 8,959.5 — 
U.S. government and government agency obligations3,663.9 — 3,663.9 — 
Commercial paper573.2 — 573.2 — 
Certificates of deposit417.4 — 417.4 — 
Asset-backed securities372.2 — 372.2 — 
Sovereign bonds60.4 — 60.4 — 
Equity securities(a)
1,485.4 1,485.4 — — 
Total assets
$16,382.1 $1,709.5 $14,672.6 $— 
Liabilities:
Contingent consideration
$10.3 $— $— $10.3 
As of December 31, 2024
Assets:
Cash equivalents$1,452.2 $1,264.2 $188.0 $— 
Available-for-sale debt securities:
Corporate bonds8,220.6 — 8,220.6 — 
U.S. government and government agency obligations4,817.0 — 4,817.0 — 
Commercial paper548.7 — 548.7 — 
Certificates of deposit381.1 — 381.1 — 
Asset-backed securities279.3 — 279.3 — 
Sovereign bonds82.4 — 82.4 — 
Equity securities(a)
1,095.3 1,095.3 — — 
Total assets
$16,876.6 $2,359.5 $14,517.1 $— 
Liabilities:
Contingent consideration
$52.3 $— $— $52.3 
(a) Includes equity securities of $34.7 million and $43.2 million as of June 30, 2025 and December 31, 2024, respectively, that are subject to transfer restrictions expiring in April 2026
In addition to the investments summarized in the table above, the Company classified the following investments within Other noncurrent assets:
As of June 30, 2025 and December 31, 2024, $316.8 million and $159.8 million, respectively, of equity securities that do not have a readily determinable fair value. The change in carrying value of such investments was a result of additional purchases.
As of June 30, 2025 and December 31, 2024, equity securities held through ownership interest in an investment fund of $92.3 million and $52.0 million, respectively, which are measured at fair value based on Level 3 inputs. The change in carrying value was primarily the result of additional investments by the fund.
Other income (expense), net included net unrealized gains on equity securities of $249.8 million and $389.5 million for the three and six months ended June 30, 2025, respectively, and $392.5 million and $196.3 million for the three and six months ended June 30, 2024, respectively.
The fair value of the Company's long-term debt, which was determined based on Level 2 inputs, was estimated to be $1.538 billion and $1.484 billion as of June 30, 2025 and December 31, 2024, respectively.