v3.26.1
Fair Value Measurements
3 Months Ended
Mar. 31, 2026
Fair Value Disclosures [Abstract]  
Fair Value Measurements Fair Value Measurements
We consider the carrying amounts of current assets and current liabilities to approximate their fair values because of the relatively short period of time between the origination of these instruments and their expected realization or payment. For our financial instruments measured at fair value on a recurring basis, we prioritize the inputs used in measuring fair value according to the three-tier fair value hierarchy. For a description of the methods and assumptions used to: a) estimate the fair value; and b) determine the classification according to the fair value hierarchy for each financial instrument, refer to our 2025 Annual Report on Form 10-K, Note 5, “Fair Value Measurements.”
Our financial instruments measured at fair value on a recurring basis at March 31, 2026, were as follows:
Observable InputsDirectly or Indirectly Observable InputsUnobservable Inputs
Total(Level 1) (Level 2) (Level 3)
 (In millions)
Corporate debt securities$2,404 $— $2,404 $— 
Mortgage-backed securities964 — 964 — 
Asset-backed securities347 — 347 — 
Municipal securities156 — 156 — 
U.S. Treasury notes20 — 20 — 
Other
46 — 46 — 
Total assets$3,937 $— $3,937 $— 
Our financial instruments measured at fair value on a recurring basis at December 31, 2025, were as follows:
Observable InputsDirectly or Indirectly Observable InputsUnobservable Inputs
Total(Level 1)(Level 2)(Level 3)
 (In millions)
Corporate debt securities$2,465 $— $2,465 $— 
Mortgage-backed securities953 — 953 — 
Asset-backed securities364 — 364 — 
Municipal securities159 — 159 — 
U.S. Treasury notes20 — 20 — 
Other47 — 47 — 
Total assets $4,008 $— $4,008 $— 
Fair Value Measurements – Disclosure Only
The carrying amounts and estimated fair values of our notes payable are classified as Level 2 financial instruments. Fair value for these securities is determined using a market approach based on quoted market prices for similar securities in active markets or quoted prices for identical securities in inactive markets.
 March 31, 2026December 31, 2025
 Carrying
Amount
Fair Value Carrying
Amount
Fair Value
 (In millions)
4.375% Notes due 2028
$797 $775 $797 $786 
3.875% Notes due 2030
646 583 646 603 
6.500% Notes due 2031
839 840 838 873 
3.875% Notes due 2032
744 652 744 682 
6.250% Notes due 2033
741 725 741 764 
Total$3,767 $3,575 $3,766 $3,708