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Postretirement Benefit Plans (Tables) | 6 Months Ended
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Dec. 28, 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 December 28, 2018 |  | Two Quarters Ended December 28, 2018
| Pension |  | Other Benefits |  | Pension |  | Other Benefits
| (In millions)
Net periodic benefit income |  |  |  |  |  |  |
Service cost | $ | 9 |  |  | $ | — |  |  | $ | 18 |  |  | $ | — |
Interest cost | 53 |  |  | 2 |  |  | 105 |  |  | 4 |
Expected return on plan assets | (96 | ) |  | (4 | ) |  | (191 | ) |  | (8 | )
Amortization of net actuarial gain | — |  |  | (1 | ) |  | — |  |  | (3 | )
Total net periodic benefit income | $ | (34 | ) |  | $ | (3 | ) |  | $ | (68 | ) |  | $ | (7 | )
| Quarter Ended December 29, 2017 |  | Two Quarters Ended December 29, 2017
| Pension |  | Other Benefits |  | Pension |  | Other Benefits
| (In millions)
Net periodic benefit income |  |  |  |  |  |  |
Service cost | $ | 9 |  |  | $ | 1 |  |  | $ | 19 |  |  | $ | 1 |
Interest cost | 49 |  |  | 2 |  |  | 97 |  |  | 4 |
Expected return on plan assets | (92 | ) |  | (4 | ) |  | (184 | ) |  | (8 | )
Amortization of net actuarial gain | — |  |  | (1 | ) |  | — |  |  | (1 | )
Total net periodic benefit income | $ | (34 | ) |  | $ | (2 | ) |  | $ | (68 | ) |  | $ | (4 | )

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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://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (h) -URI http://asc.fasb.org/extlink&oid=108410482&loc=d3e1928-114920 + Details
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