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v3.25.1

Retirement-Related Benefits - Cost of Retirement Plans (Details) - USD ($) $ in Millions | 3 Months Ended
--- | ---
Mar. 31, 2025 | Mar. 31, 2024
Cost/(Income) of Pension Plans |  |
Total defined benefit pension and defined contribution plans cost recognized in the Consolidated Income Statement | $ 233 | $ 323
U.S. Plans | Pension Plan |  |
Cost/(Income) of Pension Plans |  |
Service cost | 88 | 98
Interest cost | 187 | 254
Expected return on plan assets | (268) | (340)
Amortization of prior service costs/(credits) | 0 | 0
Recognized actuarial losses | 70 | 129
Curtailments and settlements | 0 | 0
Multi-employer plans | 0 | 0
Other costs/(credits) | 0 | 0
Total net periodic pension (income)/cost of defined benefit plans | 77 | 140
Cost of defined contribution plans | 14 | 12
Total defined benefit pension and defined contribution plans cost recognized in the Consolidated Income Statement | 90 | 152
U.S. Plans | Other Postretirement Benefits Plan |  |
Cost/(Income) of Pension Plans |  |
Service cost | 0 | 1
Interest cost | 28 | 27
Expected return on plan assets | 0 | 0
Amortization of prior service costs/(credits) | (7) | (7)
Recognized actuarial losses | 0 | 0
Curtailments and settlements | 0 | 0
Total net periodic pension (income)/cost of defined benefit plans | 22 | 20
Non-U.S. Plans | Pension Plan |  |
Cost/(Income) of Pension Plans |  |
Service cost | 41 | 44
Interest cost | 251 | 267
Expected return on plan assets | (345) | (389)
Amortization of prior service costs/(credits) | 5 | 5
Recognized actuarial losses | 81 | 130
Curtailments and settlements | 2 | 2
Multi-employer plans | 3 | 4
Other costs/(credits) | 8 | 8
Total net periodic pension (income)/cost of defined benefit plans | 47 | 72
Cost of defined contribution plans | 96 | 99
Total defined benefit pension and defined contribution plans cost recognized in the Consolidated Income Statement | 143 | 171
Non-U.S. Plans | Other Postretirement Benefits Plan |  |
Cost/(Income) of Pension Plans |  |
Service cost | 0 | 1
Interest cost | 10 | 11
Expected return on plan assets | 0 | 0
Amortization of prior service costs/(credits) | 0 | 0
Recognized actuarial losses | 0 | 0
Curtailments and settlements | 0 | 0
Total net periodic pension (income)/cost of defined benefit plans | $ 11 | $ 11

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