Pension, Other Postretirement Benefits and Savings Plans - Estimated Future Benefit Payments (Details) $ in Millions	Dec. 31, 2018 USD ($)
Other Postretirement Benefits
Without Medicare Part D Subsidy, Fiscal Year Maturity
2019	$ 18
2020	18
2021	17
2022	17
2023	16
2024-2028	76
United States \| Pension Plan
Without Medicare Part D Subsidy, Fiscal Year Maturity
2019	417
2020	388
2021	380
2022	363
2023	353
2024-2028	1,650
Non-U.S. \| Pension Plan
Without Medicare Part D Subsidy, Fiscal Year Maturity
2019	123
2020	120
2021	122
2022	128
2023	130
2024-2028	$ 693

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Amount of benefits for defined benefit plan expected to be paid in five fiscal years after fifth fiscal year following latest fiscal year.

+ 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 (f)
-URI http://asc.fasb.org/extlink&oid=108410482&loc=d3e1928-114920

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Amount of benefits for defined benefit plan expected to be paid in next fiscal year following latest fiscal year.

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Amount of benefits for defined benefit plan expected to be paid in fifth fiscal year following latest fiscal year.

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Amount of benefits for defined benefit plan expected to be paid in third fiscal year following latest fiscal year.

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Amount of benefits for defined benefit plan expected to be paid in second fiscal year following latest fiscal year.

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