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Pension benefits |
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Postretirement benefits |
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2017 |
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2016 |
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2015 |
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2017 |
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2016 |
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2015 |
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Benefit obligations |
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Rates as of year-end: |
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Discount rate |
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3.50 |
% |
3.90 |
% |
4.00 |
% |
3.50 |
% |
3.90 |
% |
4.00 |
% |
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Rate of compensation increase |
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3.25 |
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3.25 |
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3.25 |
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3.00 |
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3.00 |
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3.00 |
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Current periodic costs |
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Rates as of preceding year-end: |
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Discount rate |
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3.90 |
% |
4.00 |
% |
4.10 |
% |
3.90 |
% |
4.00 |
% |
4.10 |
% |
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Rate of compensation increase |
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3.25 |
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3.25 |
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3.25 |
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3.00 |
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3.00 |
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3.00 |
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