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Employee Benefit Plans
 3 Months Ended
Mar. 31, 2023
Retirement Benefits [Abstract]  
Employee Benefit Plans
Note 13—Employee Benefit Plans
Pension and Postretirement Plans
Millions of Dollars
Pension Benefits
Other Benefits
2023202220232022
U.S.
Int'l.
U.S.
Int'l.
Components of Net Periodic Benefit Cost
Three Months Ended March 31
Service cost
$13 10 16 13 — — 
Interest cost
19 28 12 21 1 1 
Expected return on plan assets
(15)(37)(13)(34)
Amortization of prior service credit
— — — — (9)(10)
Recognized net actuarial loss
3 17 6 2 (1)— 
Settlements
4 — 4 — 
Net periodic benefit cost
$24 18 25 2 (9)(9)
The components of net periodic benefit cost, other than the service cost component, are included in the "Other expenses" line of our consolidated income statement.