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Pension and Retiree Medical Benefits | 9 Months Ended
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Sep. 06, 2014
Compensation and Retirement Disclosure [Abstract] |
Pension and Retiree Medical Benefits | Pension and Retiree Medical Benefits The components of net periodic benefit cost for pension and retiree medical plans are as follows:
| 12 Weeks Ended
| Pension |  | Retiree Medical
| 9/6/2014 |  |  | 9/7/2013 |  |  | 9/6/2014 |  |  | 9/7/2013 |  |  | 9/6/2014 |  |  | 9/7/2013 |
| U.S. |  | International |  |
Service cost | $ | 91 |  |  | $ | 107 |  |  | $ | 24 |  |  | $ | 28 |  |  | $ | 8 |  |  | $ | 10 |
Interest cost | 134 |  |  | 122 |  |  | 33 |  |  | 29 |  |  | 14 |  |  | 13 |
Expected return on plan assets | (181 | ) |  | (190 | ) |  | (44 | ) |  | (39 | ) |  | (6 | ) |  | (6 | )
Amortization of prior service cost/(credit) | 5 |  |  | 4 |  |  | — |  |  | — |  |  | (5 | ) |  | (6 | )
Amortization of net losses/(gains) | 40 |  |  | 67 |  |  | 14 |  |  | 17 |  |  | (2 | ) |  | — |
| 89 |  |  | 110 |  |  | 27 |  |  | 35 |  |  | 9 |  |  | 11 |
Settlement loss | — |  |  | — |  |  | 3 |  |  | — |  |  | — |  |  | — |
Special termination benefits | 3 |  |  | — |  |  | — |  |  | — |  |  | 1 |  |  | — |
Total expense | $ | 92 |  |  | $ | 110 |  |  | $ | 30 |  |  | $ | 35 |  |  | $ | 10 |  |  | $ | 11 |
| 36 Weeks Ended
| Pension |  | Retiree Medical
| 9/6/2014 |  |  | 9/7/2013 |  |  | 9/6/2014 |  |  | 9/7/2013 |  |  | 9/6/2014 |  |  | 9/7/2013 |
| U.S. |  | International |  |
Service cost | $ | 272 |  |  | $ | 323 |  |  | $ | 67 |  |  | $ | 77 |  |  | $ | 24 |  |  | $ | 31 |
Interest cost | 402 |  |  | 365 |  |  | 90 |  |  | 81 |  |  | 42 |  |  | 38 |
Expected return on plan assets | (543 | ) |  | (570 | ) |  | (120 | ) |  | (109 | ) |  | (18 | ) |  | (18 | )
Amortization of prior service cost/(credit) | 14 |  |  | 13 |  |  | — |  |  | 1 |  |  | (15 | ) |  | (16 | )
Amortization of net losses/(gains) | 121 |  |  | 200 |  |  | 36 |  |  | 46 |  |  | (4 | ) |  | — |
| 266 |  |  | 331 |  |  | 73 |  |  | 96 |  |  | 29 |  |  | 35 |
Settlement loss | — |  |  | — |  |  | 3 |  |  | 1 |  |  | — |  |  | — |
Special termination benefits | 11 |  |  | 3 |  |  | — |  |  | — |  |  | 2 |  |  | — |
Total expense | $ | 277 |  |  | $ | 334 |  |  | $ | 76 |  |  | $ | 97 |  |  | $ | 31 |  |  | $ | 35 |
We regularly evaluate different opportunities to reduce risk and volatility associated with our pension and retiree medical plans. During the second quarter of 2014, we made discretionary contributions of $19 million to our international pension plans. During the first quarter of 2013, we made discretionary contributions of $13 million to our international pension plans.

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- Definition The entire disclosure for pension and other postretirement benefits. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -URI http://asc.fasb.org/topic&trid=2235017 + Details
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