v3.26.1
Postretirement benefits
3 Months Ended
Mar. 31, 2026
Defined Benefit Plans and Other Postretirement Benefit Plans Disclosures [Abstract]  
Postretirement benefits
NOTE 10: POSTRETIREMENT BENEFITS

We have historically offered certain health care benefits to a large number of our eligible retired U.S. employees. In addition to our retiree health care plan, we also maintain an inactive U.S. supplemental executive retirement plan. Further information regarding our postretirement benefit plans can be found under the caption “Note 11: Postretirement Benefits” in the Notes to Consolidated Financial Statements located in the 2025 Form 10-K.

Postretirement benefit income is included in other income, net on the consolidated statements of comprehensive income and consisted of the following components:
Quarter Ended
March 31,
(in millions)20262025
Expected return on plan assets$2.4 $2.1 
Amortization of prior service credit0.4 0.4 
Interest cost(0.3)(0.4)
Amortization of net actuarial losses— (0.2)
Net periodic benefit income$2.5 $1.9