v3.26.3
Fair Value Measurements (Tables)
 9 Months Ended
Sep. 30, 2026
Fair Value Disclosures [Abstract]  
Schedule of Financial Instruments Measured at Fair Value The following table presents financial instruments measured at fair value on a recurring basis:
September 30, 2026
(in millions)Level 1Level 2Level 3Total
Assets at Fair Value:
Marketable securities:
Corporate debt securities$6.5 $— $— $6.5 
Mutual funds123.6 — — 123.6 
Equity securities0.9 — — 0.9 
Total Marketable Securities131.0 — — 131.0 
Total Assets at Fair Value$131.0 $— $— $131.0 
Schedule of Fair value of Debt Instruments
At September 30, 2026, the fair values were as follows:
(in millions)Fair ValueLevel
$500.0 million fixed rate notes due June 2028
$489.9 Level 2
$750.0 million fixed rate notes due March 2030
727.8 Level 2
$750.0 million fixed rate notes due March 2032
649.7 Level 2
$750.0 million fixed rate notes due September 2043
685.3 Level 2
$700.0 million fixed rate notes due June 2048
549.7 Level 2