v3.26.1
Stockholders' Equity
 6 Months Ended
Jun. 30, 2026
Equity [Abstract]  
Stockholders' Equity
15. Stockholders’ Equity
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.
As of June 30, 2026, the remaining capacity under the SRP was $1.7 billion and all repurchased shares have been retired. See Note 1 to the Annual Financial Statements for the accounting policy related to treasury stock and retirement of treasury stock.
Accumulated Other Comprehensive Income
Changes in AOCI for the periods were:
Six Months Ended June 30,
20262025
Beginning balance$(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)
Reclassification adjustments from AOCI to the Consolidated Statements of Operations were non-material amounts for the six months ended June 30, 2026 and 2025.
The postretirement obligations components of AOCI are not presented in their entirety on the Consolidated Statements of Operations during the periods; rather, they are included in the computation of net periodic defined benefit costs (credits). See Note 12 for additional information.