v3.26.1
Stockholders' Equity (Tables)
 6 Months Ended
Jun. 30, 2026
Equity [Abstract]  
Schedule of Share Repurchase Program
Summary of activity under the SRP:
Six Months Ended June 30, 2026Six Months Ended June 30, 2025
Number of Shares
Share Price (a)
Total AmountNumber of Shares
Share Price (a)
Total Amount
Share repurchases850,000 $350.21 $298 452,130 $186.24 $85 
Share retirements(850,000)350.21 (298)(452,130)186.24 (85)
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(a)Weighted average price per share, including transaction costs and excise taxes, if applicable.
Schedule of Accumulated Other Comprehensive Income
Changes in AOCI for the periods were:
Six Months Ended June 30,
20262025
Beginning balance$(4)$(12)
Gains (losses) arising during the period
(9)8 
Reclassifications to Consolidated Statements of Operations
(3)(4)
Income tax benefit (expense)4 (1)
Other comprehensive income (loss)(8)3 
Accumulated other comprehensive income (loss)$(12)$(9)

The components of AOCI, net of tax, as of June 30, were:
Six Months Ended June 30,
20262025
Available-for-sale securities unrealized gain (loss), net$(4)$1 
Postretirement benefit prior service credits (costs), net10 13 
Postretirement benefit actuarial gain (loss), net(18)(23)
Accumulated other comprehensive income (loss)$(12)$(9)