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Pension and Other Postretirement Plans | 6 Months Ended
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Apr. 30, 2020
Compensation And Retirement Disclosure [Abstract] |
Pension and Other Postretirement Plans |
6. | Pension and other postretirement plans
The components of net periodic pension cost for the three and six months ended April 30, 2020 and 2019 were:
|  | U.S. |  |  | International |
Three Months Ended |  | 2020 |  |  | 2019 |  |  | 2020 |  |  | 2019 |
Service cost |  | $ | 5,235 |  |  | $ | 3,577 |  |  | $ | 459 |  |  | $ | 486 |
Interest cost |  |  | 4,026 |  |  |  | 4,492 |  |  |  | 251 |  |  |  | 424 |
Expected return on plan assets |  |  | (6,175 | ) |  |  | (5,794 | ) |  |  | (304 | ) |  |  | (407 | )
Amortization of prior service credit |  |  | (22 | ) |  |  | (15 | ) |  |  | (68 | ) |  |  | (76 | )
Amortization of net actuarial loss |  |  | 3,622 |  |  |  | 1,544 |  |  |  | 729 |  |  |  | 428 |
Total benefit cost |  | $ | 6,686 |  |  | $ | 3,804 |  |  | $ | 1,067 |  |  | $ | 855 |
|  | U.S. |  |  | International |
Six Months Ended |  | 2020 |  |  | 2019 |  |  | 2020 |  |  | 2019 |
Service cost |  | $ | 10,293 |  |  | $ | 7,155 |  |  | $ | 1,030 |  |  | $ | 970 |
Interest cost |  |  | 7,943 |  |  |  | 8,989 |  |  |  | 514 |  |  |  | 846 |
Expected return on plan assets |  |  | (12,334 | ) |  |  | (11,597 | ) |  |  | (635 | ) |  |  | (807 | )
Amortization of prior service credit |  |  | (42 | ) |  |  | (30 | ) |  |  | (142 | ) |  |  | (152 | )
Amortization of net actuarial loss |  |  | 7,019 |  |  |  | 3,088 |  |  |  | 1,462 |  |  |  | 855 |
Total benefit cost |  | $ | 12,879 |  |  | $ | 7,605 |  |  | $ | 2,229 |  |  | $ | 1,712 |
The components of other postretirement benefit cost for the three and six months ended April 30, 2020 and 2019 were:
|  | U.S. |  |  | International |
Three Months Ended |  | 2020 |  |  | 2019 |  |  | 2020 |  |  | 2019 |
Service cost |  | $ | 143 |  |  | $ | 165 |  |  | $ | 4 |  |  | $ | 6 |
Interest cost |  |  | 558 |  |  |  | 749 |  |  |  | 3 |  |  |  | 6 |
Amortization of prior service credit |  |  | (4 | ) |  |  | (6 | ) |  |  | — |  |  |  | — |
Amortization of net actuarial (gain) loss |  |  | 258 |  |  |  | 152 |  |  |  | (9 | ) |  |  | (9 | )
Total benefit cost |  | $ | 955 |  |  | $ | 1,060 |  |  | $ | (2 | ) |  | $ | 3 |
|  | U.S. |  |  | International |
Six Months Ended |  | 2020 |  |  | 2019 |  |  | 2020 |  |  | 2019 |
Service cost |  | $ | 333 |  |  | $ | 331 |  |  | $ | 7 |  |  | $ | 9 |
Interest cost |  |  | 1,173 |  |  |  | 1,497 |  |  |  | 7 |  |  |  | 11 |
Amortization of prior service credit |  |  | (8 | ) |  |  | (13 | ) |  |  | — |  |  |  | — |
Amortization of net actuarial (gain) loss |  |  | 677 |  |  |  | 304 |  |  |  | (18 | ) |  |  | (16 | )
Total benefit cost |  | $ | 2,175 |  |  | $ | 2,119 |  |  | $ | (4 | ) |  | $ | 4 |
The components of net periodic pension cost other than service cost are included in Other – net in our Consolidated Statements of Income.

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- Definition The entire disclosure for pension and other postretirement benefits. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -URI http://asc.fasb.org/topic&trid=2235017 + Details
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