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Pension and Postretirement Plans | 3 Months Ended
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Dec. 31, 2017
Defined Benefit Pension Plans and Defined Benefit Postretirement Plans Disclosure [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 December 31,
| 2017 |  | 2016
Service cost | $ | 4 |  |  | $ | 5 |
Interest cost | 26 |  |  | 28 |
Expected return on plan assets | (57 | ) |  | (59 | )
Net actuarial gain | — |  |  | (117 | )
Settlement gain | — |  |  | (8 | )
Net periodic benefit credit | $ | (27 | ) |  | $ | (151 | )
| Non-U.S. Pension Plans
| Three Months Ended December 31,
| 2017 |  | 2016
Service cost | $ | 6 |  |  | $ | 8 |
Interest cost | 14 |  |  | 12 |
Expected return on plan assets | (29 | ) |  | (23 | )
Net periodic benefit credit | $ | (9 | ) |  | $ | (3 | )
| Postretirement Benefits
| Three Months Ended December 31,
| 2017 |  | 2016
Service cost | $ | — |  |  | $ | 1 |
Interest cost | 2 |  |  | 1 |
Expected return on plan assets | (2 | ) |  | (3 | )
Net periodic benefit credit | $ | — |  |  | $ | (1 | )
During the three months ended December 31, 2016, the amount of lump sum payouts triggered a remeasurement event for certain U.S. pension plans resulting in the recognition of net actuarial gains of $117 million.

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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 -SubTopic 80 -Section 50 -Paragraph 11 -URI http://asc.fasb.org/extlink&oid=65877416&loc=SL14450702-114947 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=65897934&loc=d3e2410-114920 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 60 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6414203&loc=d3e39675-114964 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 70 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=49170846&loc=d3e28014-114942 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 60 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=66047640&loc=d3e39622-114963 + Details
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