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Pension and Other Postretirement Benefit Plans (Tables) | 3 Months Ended
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Dec. 29, 2018
Retirement Benefits [Abstract] |
Schedule of Net Benefit Costs | The components of the net periodic cost for the pension and postretirement benefit plans for the three months ended December 29, 2018, and December 30, 2017, are as follows (in millions):
| Pension Plans
| Three Months Ended
| December 29, 2018 |  | December 30, 2017
Service cost | $ | 1 |  |  | $ | 2 |
Interest cost | 16 |  |  | 16 |
Expected return on plan assets | (14 | ) |  | (16 | )
Amortization of net actuarial loss | — |  |  | 1 |
Settlement loss | 19 |  |  | — |
Net periodic cost | $ | 22 |  |  | $ | 3 |
| Postretirement Benefit Plans
| Three Months Ended
| December 29, 2018 |  | December 30, 2017
Amortization of prior service credit | $ | (4 | ) |  | $ | (6 | )
Net periodic credit | $ | (4 | ) |  | $ | (6 | )

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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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