Pension, Other Postretirement Benefits and Savings Plans - Estimated Future Benefit Payments (Details) $ in Millions	Dec. 31, 2020 USD ($)
Pension Plan \| United States
Without Medicare Part D Subsidy, Fiscal Year Maturity
2021	$ 417
2022	390
2023	366
2024	352
2025	339
2026-2030	1,578
Pension Plan \| Non-U.S.
Without Medicare Part D Subsidy, Fiscal Year Maturity
2021	136
2022	129
2023	130
2024	137
2025	138
2026-2030	743
Other Postretirement Benefits
Without Medicare Part D Subsidy, Fiscal Year Maturity
2021	16
2022	16
2023	15
2024	15
2025	14
2026-2030	$ 68

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- Definition

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

+ 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 (f)
-URI http://asc.fasb.org/extlink&oid=118255775&loc=d3e1928-114920

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

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

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Amount of benefit for defined benefit plan expected to be paid in fourth fiscal year following current fiscal year.

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

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

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