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Pension, Savings and Other Postretirement Benefit Plans - Narrative (Details) - USD ($) $ in Millions | 3 Months Ended
--- | ---
Mar. 31, 2020 | Mar. 31, 2019
Defined Benefit Plan Disclosure [Line Items] |  |
Postretirement benefits expense (credit) | $ (3) | $ 2
Defined contribution plans, contribution expenses | 30 | $ 28
Non-U.S. |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Contributions to pension plans | 7 |
Non-U.S. | Minimum |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Expected contribution to funded pension plans in current year | 25 |
Non-U.S. | Maximum |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Expected contribution to funded pension plans in current year | 50 |
Other Postretirement Benefits |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Curtailment charge (credit) | (4) |
Other Postretirement Benefits | Non-U.S. |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Curtailment charge (credit) | (4) |
Settlement charges | $ 2 |

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- Definition Amount of gain (loss) recognized in net periodic benefit (cost) credit from event reducing expected years of future service of present employees or eliminating accrual of defined benefits for some or all future services of present employees. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (h)(7) -URI http://asc.fasb.org/extlink&oid=118255775&loc=d3e1928-114920 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 6 -Subparagraph (a)(7) -URI http://asc.fasb.org/extlink&oid=118255775&loc=d3e2709-114920 + Details
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