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Postretirement Benefit Plans (Tables) | 9 Months Ended
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Mar. 30, 2018
Retirement Benefits [Abstract] |
Schedule of Components of Net Periodic Benefit Cost | The following tables provide the components of our net periodic benefit income for our defined benefit plans, including defined benefit pension plans and other postretirement defined benefit plans:
|  | Quarter Ended March 30, 2018 |  | Three Quarters Ended March 30, 2018
|  | Pension |  | Other Benefits |  | Total |  | Pension |  | Other Benefits |  | Total
|  | (In millions)
Net periodic benefit income |  |  |  |  |  |  |  |  |  |  |
Service cost | $ | 10 |  |  | $ | — |  |  | $ | 10 |  |  | $ | 29 |  |  | $ | 1 |  |  | $ | 30 |
Interest cost | 49 |  |  | 1 |  |  | 50 |  |  | 146 |  |  | 5 |  |  | 151 |
Expected return on plan assets | (92 | ) |  | (4 | ) |  | (96 | ) |  | (276 | ) |  | (12 | ) |  | (288 | )
Amortization of net actuarial gain | — |  |  | — |  |  | — |  |  | — |  |  | (1 | ) |  | (1 | )
Total net periodic benefit income | $ | (33 | ) |  | $ | (3 | ) |  | $ | (36 | ) |  | $ | (101 | ) |  | $ | (7 | ) |  | $ | (108 | )
|  | Quarter Ended March 31, 2017 |  | Three Quarters Ended March 31, 2017
|  | Pension |  | Other Benefits |  | Total |  | Pension |  | Other Benefits |  | Total
| (In millions)
Net periodic benefit income |  |  |  |  |  |  |  |  |  |  |
Service cost(1) | $ | 15 |  |  | $ | 1 |  |  | $ | 16 |  |  | $ | 44 |  |  | $ | 1 |  |  | $ | 45 |
Interest cost | 46 |  |  | 2 |  |  | 48 |  |  | 138 |  |  | 6 |  |  | 144 |
Expected return on plan assets | (85 | ) |  | (5 | ) |  | (90 | ) |  | (255 | ) |  | (13 | ) |  | (268 | )
Total net periodic benefit income | $ | (24 | ) |  | $ | (2 | ) |  | $ | (26 | ) |  | $ | (73 | ) |  | $ | (6 | ) |  | $ | (79 | )
(1) | $1 million and $2 million of the service cost component of net periodic benefit income are included as a component of the “Discontinued operations, net of income taxes” line item in our Condensed Consolidated Statement of Income (Unaudited) for the quarter and three quarters ended March 31, 2017, respectively.

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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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