v3.25.4
Pension and Other Benefit Programs - Effect on Accumulated Other Comprehensive Income (Details)
$ in Millions
Dec. 31, 2025
USD ($)
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]  
Unrecognized net actuarial losses/(gains), after tax $ 47
Pension Plans  
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]  
Unrecognized net actuarial losses/(gains), after tax 71
SERP Plans  
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]  
Unrecognized net actuarial losses/(gains), after tax 3
Post-retirement Benefit Plans  
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]  
Unrecognized net actuarial losses/(gains), after tax $ (27)