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Fair Value Measurements (Tables)
12 Months Ended
Dec. 31, 2025
Fair Value Disclosures [Abstract]  
Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis
Assets and liabilities measured and recorded at fair value on a recurring basis consisted of the following (in millions):
 December 31, 2025December 31, 2024
TotalLevel 1Level 2Level 3TotalLevel 1Level 2Level 3
Assets
Mutual funds$1,131 $1,131 $ $ $1,072 $1,072 $— $— 
U.S. Government securities80  80  116 — 116 — 
Other securities711 372 339  645 342 303 — 
Derivatives47  47  — — 
Liabilities
Derivatives113  113  196 — 196 —