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v3.23.1

Pension and Postretirement Benefit Plans | 3 Months Ended
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Mar. 31, 2023
Retirement Benefits [Abstract] |
Pension and Postretirement Benefit Plans | Pension and Postretirement Benefit Plans The service cost component of defined benefit net periodic benefit cost is recorded in cost of sales; selling, general and administrative expenses; and research, development and related expenses. The other components of net periodic benefit cost are reflected in other expense (income), net. Components of net periodic benefit cost and other supplemental information for the three months ended March 31, 2023 and 2022 follow: Benefit Plan Information
|  | Three months ended March 31,
|  | Qualified and Non-qualified Pension Benefits |  | Postretirement Benefits
|  | United States | International |
(Millions) |  | 2023 |  | 2022 |  | 2023 |  | 2022 |  | 2023 |  | 2022
Net periodic benefit cost (benefit) |  |  |  |  |  |  |  |  |  |  |  |
Operating expense |  |  |  |  |  |  |  |  |  |  |  |
Service cost |  | $ | 43 |  |  | $ | 64 |  |  | $ | 19 |  |  | $ | 35 |  |  | $ | 6 |  |  | $ | 11 |
Non-operating expense |  |  |  |  |  |  |  |  |  |  |  |
Interest cost |  | 166 |  |  | 104 |  |  | 55 |  |  | 32 |  |  | 22 |  |  | 13 |
Expected return on plan assets |  | (244) |  |  | (241) |  |  | (75) |  |  | (72) |  |  | (19) |  |  | (18) |
Amortization of transition asset |  | — |  |  | — |  |  | — |  |  | — |  |  | — |  |  | — |
Amortization of prior service benefit |  | (6) |  |  | (6) |  |  | 1 |  |  | — |  |  | (8) |  |  | (7) |
Amortization of net actuarial loss |  | 73 |  |  | 106 |  |  | 2 |  |  | 11 |  |  | 2 |  |  | 10 |
Settlements, curtailments, special termination benefits and other |  | — |  |  | — |  |  | — |  |  | — |  |  | — |  |  | 1 |
Total non-operating expense (benefit) |  | (11) |  |  | (37) |  |  | (17) |  |  | (29) |  |  | (3) |  |  | (1) |
Total net periodic benefit cost (benefit) |  | $ | 32 |  |  | $ | 27 |  |  | $ | 2 |  |  | $ | 6 |  |  | $ | 3 |  |  | $ | 10 |
For the three months ended March 31, 2023 contributions totaling $26 million were made to the Company’s U.S. and international pension plans and $1 million to its postretirement plans. Future contributions will depend on market conditions, interest rates and other factors. 3M’s annual measurement date for pension and postretirement assets and liabilities is December 31 each year, which is also the date used for the related annual measurement assumptions.

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