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Pension Plans | 6 Months Ended
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Nov. 30, 2014
Pension Plans | NOTE 6 — PENSION PLANS We offer defined benefit pension plans, defined contribution pension plans, as well as several unfunded health care benefit plans primarily for certain of our retired employees. The following tables provide the retirement-related benefit plans’ impact on income before income taxes for the three and six month periods ended November 30, 2014 and 2013:
|  | U.S. Plans |  |  | Non-U.S. Plans |
|  | Three Months Ended |  |  | Three Months Ended |
|  | November 30, |  |  | November 30, |
Pension Benefits |  | 2014 |  |  | 2013 |  |  | 2014 |  |  | 2013 |
(In thousands) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Service cost |  | $ | 7,564 |  |  | $ | 6,764 |  |  | $ | 1,231 |  |  | $ | 1,109 |
Interest cost |  |  | 5,002 |  |  |  | 4,510 |  |  |  | 1,891 |  |  |  | 1,799 |
Expected return on plan assets |  |  | (6,034 | ) |  |  | (5,191 | ) |  |  | (2,296 | ) |  |  | (2,096 | )
Amortization of: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Prior service cost |  |  | 74 |  |  |  | 84 |  |  |  | 10 |  |  |  | 1 |
Net actuarial losses recognized |  |  | 3,472 |  |  |  | 3,305 |  |  |  | 536 |  |  |  | 624 |
Net Periodic Benefit Cost |  | $ | 10,078 |  |  | $ | 9,472 |  |  | $ | 1,372 |  |  | $ | 1,437 |
|  | U.S. Plans |  |  | Non-U.S. Plans |
|  | Three Months Ended |  |  | Three Months Ended |
|  | November 30, |  |  | November 30, |
Postretirement Benefits |  | 2014 |  |  | 2013 |  |  | 2014 |  |  | 2013 |
(In thousands) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Service cost |  | $ | — |  |  | $ | — |  |  | $ | 313 |  |  | $ | 327 |
Interest cost |  |  | 66 |  |  |  | 81 |  |  |  | 308 |  |  |  | 317 |
Amortization of: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Prior service (credit) |  |  | (62 | ) |  |  | (22 | ) |  |  |  |  |  |  |  |
Net actuarial (gains) losses recognized |  |  | (34 | ) |  |  | (29 | ) |  |  | 104 |  |  |  | 134 |
Net Periodic Benefit Cost |  | $ | (30 | ) |  | $ | 30 |  |  | $ | 725 |  |  | $ | 778 |
|  | U.S. Plans |  |  | Non-U.S. Plans |
|  | Six Months Ended |  |  | Six Months Ended |
|  | November 30, |  |  | November 30, |
Pension Benefits |  | 2014 |  |  | 2013 |  |  | 2014 |  |  | 2013 |
(In thousands) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Service cost |  | $ | 15,128 |  |  | $ | 13,528 |  |  | $ | 2,462 |  |  | $ | 2,218 |
Interest cost |  |  | 10,004 |  |  |  | 9,020 |  |  |  | 3,782 |  |  |  | 3,599 |
Expected return on plan assets |  |  | (12,068 | ) |  |  | (10,381 | ) |  |  | (4,592 | ) |  |  | (4,191 | )
Amortization of: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Prior service cost |  |  | 148 |  |  |  | 167 |  |  |  | 20 |  |  |  | 2 |
Net actuarial losses recognized |  |  | 6,944 |  |  |  | 6,611 |  |  |  | 1,072 |  |  |  | 1,247 |
Net Periodic Benefit Cost |  | $ | 20,156 |  |  | $ | 18,945 |  |  | $ | 2,744 |  |  | $ | 2,875 |
|  | U.S. Plans |  |  | Non-U.S. Plans |
|  | Six Months Ended |  |  | Six Months Ended |
|  | November 30, |  |  | November 30, |
Postretirement Benefits |  | 2014 |  |  | 2013 |  |  | 2014 |  |  | 2013 |
(In thousands) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Service cost |  | $ | — |  |  | $ | — |  |  | $ | 626 |  |  | $ | 654 |
Interest cost |  |  | 132 |  |  |  | 162 |  |  |  | 616 |  |  |  | 634 |
Amortization of: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Prior service (credit) |  |  | (124 | ) |  |  | (44 | ) |  |  | — |  |  |  | — |
Net actuarial (gains) losses recognized |  |  | (68 | ) |  |  | (58 | ) |  |  | 208 |  |  |  | 267 |
Net Periodic Benefit Cost |  | $ | (60 | ) |  | $ | 60 |  |  | $ | 1,450 |  |  | $ | 1,555 |
We previously disclosed in our financial statements for the fiscal year ended May 31, 2014 that we expected to contribute approximately $53.1 million to our retirement plans in the U.S. and approximately $6.3 million to plans outside the U.S. during the current fiscal year. As of November 30, 2014, this has not changed. We have determined that our postretirement medical plan provides prescription drug benefits that will qualify for the federal subsidy provided by the Medicare Prescription Drug, Improvement and Modernization Act of 2003. For all groups of retirees, we have assumed that the subsidy will continue indefinitely. However, effective January 1, 2014, we changed our retiree medical offering to a Medicare Advantage Plan. Under the Medicare Advantage Plan, any Part D subsidy belongs to the insurance carrier. Our results reflect this change.

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- Definition Pension Plans Disclosure. + References No definition available. + Details
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