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Retirement Benefit Plans (Tables) | 3 Months Ended
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Jul. 28, 2017
Retirement Benefits [Abstract] |
Components of Net Periodic Benefit Cost | The net periodic benefit cost of the defined benefit pension plans included the following components for the three months ended July 28, 2017 and July 29, 2016:
| U.S. Pension Benefits |  | Non-U.S. Pension Benefits
| Three months ended |  | Three months ended
(in millions) | July 28, 2017 |  | July 29, 2016 |  | July 28, 2017 |  | July 29, 2016
Service cost | $ | 29 |  |  | $ | 29 |  |  | $ | 17 |  |  | $ | 19 |
Interest cost | 30 |  |  | 27 |  |  | 7 |  |  | 6 |
Expected return on plan assets | (52 | ) |  | (47 | ) |  | (13 | ) |  | (12 | )
Amortization of net actuarial loss | 20 |  |  | 23 |  |  | 4 |  |  | 4 |
Net periodic benefit cost | $ | 27 |  |  | $ | 32 |  |  | $ | 15 |  |  | $ | 17 |

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- Definition Tabular disclosure of the components of net benefit costs for pension plans and/or other employee benefit plans including service cost, interest cost, expected return on plan assets, gain (loss), prior service cost or credit, transition asset or obligation, and gain (loss) recognized due to settlements or curtailments. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (h) -URI http://asc.fasb.org/extlink&oid=82843861&loc=d3e1928-114920 + Details
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