v3.24.1.u1
Intangible Assets and Goodwill (Tables)
 3 Months Ended
Mar. 31, 2024
Goodwill and Intangible Assets Disclosure [Abstract]  
Intangible assets
Intangible assets, net of accumulated amortization, impairment charges and adjustments are summarized as follows:
  As of March 31, 2024As of December 31, 2023
(In millions)Estimated LifeCostAccumulated
Amortization		NetCostAccumulated
Amortization		Net
Completed technology:
Acquired and in-licensed rights and patents
2-22 years
$10,480.2 $(2,514.0)$7,966.2 $8,180.2 $(2,440.7)$5,739.5 
Developed technology and other
13-31 years
3,548.6 (3,434.1)114.5 3,548.6 (3,429.1)119.5 
Total completed technology14,028.8 (5,948.1)8,080.7 11,728.8 (5,869.8)5,859.0 
In-process research and developmentIndefinite until commercialization40.0 — 40.0 2,340.0 — 2,340.0 
Priority review voucherIndefinite100.0 — 100.0 100.0 — 100.0 
Trademarks and trade namesIndefinite64.0 — 64.0 64.0 — 64.0 
Total intangible assets$14,232.8 $(5,948.1)$8,284.7 $14,232.8 $(5,869.8)$8,363.0 
Estimated future amortization for acquired intangible assets
The estimated future amortization of finite-lived intangible assets for the next five years is expected to be as follows:
(In millions)As of March 31, 2024
2024 (remaining nine months)$265.0 
2025565.0 
2026660.0 
2027685.0 
2028710.0 
2029715.0 
Summary of roll forward of the changes in goodwill
The following table provides a roll forward of the changes in our goodwill balance:
(In millions)As of March 31, 2024
Goodwill, December 31, 2023$6,219.2 
Goodwill resulting from Reata acquisition9.0 
Other(0.8)
Goodwill, March 31, 2024$6,227.4