v3.25.4
Employee Benefit Plans (Tables)
 12 Months Ended
Dec. 31, 2025
Retirement Benefits [Abstract]  
Schedule of Defined Benefit Plans Disclosures
The changes in the benefit obligation, the changes in fair value of plan assets, the funded status and the amounts recognized in the consolidated balance sheets for Sunoco’s Pension Plans and other postretirement benefit plans as of December 31, 2025 were as follows:
December 31, 2025December 31, 2024
Pension PlansOther Postretirement Benefit PlansPension PlansOther Postretirement Benefit Plans
Change in benefit obligation:
Benefit obligation at beginning of period
$137 $1 $— $— 
NuStar Acquisition— — 152 12 
Service cost— — 1 — 
Interest cost3 — 5 1 
Plan amendments— — — (11)
Benefits paid, net(136)— (36)— 
Actuarial (gain) loss and other(4)— 15 (1)
Benefit obligation at end of period
— 1 137 1 
Change in plan assets:
Fair value of plan assets at beginning of period
$160 $— $— $— 
NuStar Acquisition— — 178 — 
Actual return on plan assets2 — 12 — 
Employer contributions1 — 5 — 
Benefits paid, net(136)— (35)— 
Fair value of plan assets at end of period27 — 160 — 
Amount (overfunded) underfunded at end of period
$(27)$1 $(23)$1 
Amounts recognized in the consolidated balance sheets consist of:
Current assets$27 $— $— $— 
Non-current assets— — 24 — 
Current liabilities— — (1)(1)
Non-current liabilities— (1)— — 
$27 $(1)$23 $(1)
Amounts recognized in accumulated other comprehensive income (pre-tax basis) consist of:
Net actuarial loss$— $— $(9)$— 
Prior service credit— — — 11 
$— $— $(9)$11