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Pension and Postretirement Plans | 9 Months Ended
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Jun. 30, 2018
Defined Benefit Plan [Abstract] |
Pension and Postretirement Plans | Pension and Postretirement Plans The components of the Company’s net periodic benefit costs from continuing operations associated with its defined benefit pension and postretirement plans are shown in the tables below in accordance with ASC 715, "Compensation – Retirement Benefits" (in millions):
| U.S. Pension Plans
| Three Months Ended June 30, |  | Nine Months Ended June 30,
| 2018 |  | 2017 |  | 2018 |  | 2017
Service cost | $ | 4 |  |  | $ | 4 |  |  | $ | 11 |  |  | $ | 13 |
Interest cost | 27 |  |  | 28 |  |  | 80 |  |  | 85 |
Expected return on plan assets | (58 | ) |  | (57 | ) |  | (172 | ) |  | (174 | )
Net actuarial (gain) loss | — |  |  | 45 |  |  | — |  |  | (90 | )
Settlement (gain) loss | — |  |  | 1 |  |  | — |  |  | (8 | )
Net periodic benefit cost (credit) | $ | (27 | ) |  | $ | 21 |  |  | $ | (81 | ) |  | $ | (174 | )
| Non-U.S. Pension Plans
| Three Months Ended June 30, |  | Nine Months Ended June 30,
| 2018 |  | 2017 |  | 2018 |  | 2017
Service cost | $ | 6 |  |  | $ | 8 |  |  | $ | 18 |  |  | $ | 24 |
Interest cost | 14 |  |  | 13 |  |  | 43 |  |  | 36 |
Expected return on plan assets | (29 | ) |  | (23 | ) |  | (87 | ) |  | (68 | )
Net periodic benefit credit | $ | (9 | ) |  | $ | (2 | ) |  | $ | (26 | ) |  | $ | (8 | )
| Postretirement Benefits
| Three Months Ended June 30, |  | Nine Months Ended June 30,
| 2018 |  | 2017 |  | 2018 |  | 2017
Service cost | $ | — |  |  | $ | — |  |  | $ | 1 |  |  | $ | 1 |
Interest cost | 2 |  |  | 1 |  |  | 5 |  |  | 4 |
Expected return on plan assets | (2 | ) |  | (2 | ) |  | (7 | ) |  | (7 | )
Net periodic benefit credit | $ | — |  |  | $ | (1 | ) |  | $ | (1 | ) |  | $ | (2 | )
During the three and nine months ended June 30, 2017, the amount of lump sum payouts triggered a remeasurement event for certain U.S. pension plans resulting in the recognition of net actuarial (gains) losses of $45 million and $(90) million, respectively.

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- References No definition available. + Details
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- Definition The entire disclosure for pension and other postretirement benefits. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -URI http://asc.fasb.org/topic&trid=2235017 + Details
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