Components of net benefit expense (income) were as follows: | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Three Months Ended | | Nine Months Ended | | Pension | | Postretirement | | Pension | | Postretirement | | May 1, 2016 | | May 3, 2015 | | May 1, 2016 | | May 3, 2015 | | May 1, 2016 | | May 3, 2015 | | May 1, 2016 | | May 3, 2015 | Service cost | $ | 6 |
| | $ | 8 |
| | $ | — |
| | $ | 1 |
| | $ | 20 |
| | $ | 22 |
| | $ | 1 |
| | $ | 2 |
| Interest cost | 24 |
| | 26 |
| | 4 |
| | 3 |
| | 74 |
| | 79 |
| | 12 |
| | 11 |
| Expected return on plan assets | (36 | ) | | (43 | ) | | — |
| | — |
| | (111 | ) | | (130 | ) | | — |
| | — |
| Amortization of prior service costs | (1 | ) | | (1 | ) | | — |
| | — |
| | (1 | ) | | (1 | ) | | (1 | ) | | (1 | ) | Recognized net actuarial (gain)/loss | 61 |
| | 5 |
| | — |
| | 22 |
| | 173 |
| | 5 |
| | — |
| | 22 |
| Curtailment loss | — |
| | 1 |
| | — |
| | 6 |
| | — |
| | 1 |
| | — |
| | 6 |
| Net periodic benefit expense (income) | $ | 54 |
| | $ | (4 | ) | | $ | 4 |
| | $ | 32 |
| | $ | 155 |
| | $ | (24 | ) | | $ | 12 |
| | $ | 40 |
|
|