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Pension and Other Postretirement Benefit Plans | 9 Months Ended
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Jun. 29, 2019
Retirement Benefits [Abstract] |
Pension and Other Postretirement Benefits Plans | PENSION AND OTHER POSTRETIREMENT BENEFIT PLANS The components of the net periodic cost for the pension and postretirement benefit plans for the three and nine months ended June 29, 2019, and June 30, 2018, are as follows (in millions):
| Pension Plans
| Three Months Ended |  | Nine Months Ended
| June 29, 2019 |  | June 30, 2018 |  | June 29, 2019 |  | June 30, 2018
Service cost | $ | — |  |  | $ | 1 |  |  | $ | 1 |  |  | $ | 5 |
Interest cost | 16 |  |  | 16 |  |  | 48 |  |  | 48 |
Expected return on plan assets | (14 | ) |  | (16 | ) |  | (43 | ) |  | (47 | )
Amortization of: |  |  |  |  |  |  |
Net actuarial loss | — |  |  | 1 |  |  | 1 |  |  | 3 |
Prior service cost | 1 |  |  | — |  |  | 1 |  |  | — |
Settlement loss | — |  |  | — |  |  | 19 |  |  | — |
Net periodic cost | $ | 3 |  |  | $ | 2 |  |  | $ | 27 |  |  | $ | 9 |
| Postretirement Benefit Plans
| Three Months Ended |  | Nine Months Ended
| June 29, 2019 |  | June 30, 2018 |  | June 29, 2019 |  | June 30, 2018
Interest cost | $ | — |  |  | $ | — |  |  | $ | 1 |  |  | $ | 1 |
Amortization of prior service credit | (1 | ) |  | (6 | ) |  | (6 | ) |  | (18 | )
Net periodic credit | $ | (1 | ) |  | $ | (6 | ) |  | $ | (5 | ) |  | $ | (17 | )
We had no contributions to our pension plans for the three months ended June 29, 2019 and contributed $9 million for the three months ended June 30, 2018. We contributed $12 million and $27 million to our pension plans for the nine months ended June 29, 2019 and June 30, 2018, respectively. We expect to contribute an additional $3 million during the remainder of fiscal 2019. The amount of contributions made to pension plans in any year is dependent upon a number of factors, including minimum funding requirements in the jurisdictions in which we operate. As a result, the actual funding in fiscal 2019 may differ from the current estimate.

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