v3.26.1
Stockholders' Equity (Tables)
 3 Months Ended
Mar. 31, 2026
Equity [Abstract]  
Schedule of Share Repurchase Program
Summary of activity under the SRP:
Three Months Ended March 31, 2026Three Months Ended March 31, 2025
Number of Shares
Share Price (a)
Total AmountNumber of Shares
Share Price (a)
Total Amount
Share repurchases300,000 $336.42 $101 452,130 $186.24 $85 
Share retirements(300,000)336.42 (101)(452,130)186.24 (85)
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(a)Weighted average price per share, including transaction costs and excise taxes.
Schedule of Accumulated Other Comprehensive Income
Changes in AOCI for the periods were:
Three Months Ended March 31,
20262025
Beginning balance$(4)$(12)
Gains (losses) arising during the period
(9)6 
Reclassifications to Consolidated Statements of Operations
(2)(2)
Income tax benefit (expense)4 (2)
Other comprehensive income (loss)(7)2 
Accumulated other comprehensive income (loss)$(11)$(10)

The components of AOCI, net of tax, as of March 31, were:
Three Months Ended March 31,
20262025
Available-for-sale securities unrealized gain (loss), net$(4)$— 
Postretirement benefit prior service credits (costs), net11 13 
Postretirement benefit actuarial gain (loss), net(18)(23)
Accumulated other comprehensive income (loss)$(11)$(10)