Pension - Summary of Significant Actuarial Assumptions Used in Determining Benefit Obligations and Net Periodic Benefit (Income) Cost (Details) - Pension Plan	12 Months Ended
Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
U.S. Plans
Actuarial assumptions used to determine benefit obligations as of December 31:
Discount rate	2.70%	3.30%	4.50%
Interest crediting rate	6.00%	6.00%	6.00%
Expected annual rate of compensation increase	3.50%	3.40%	3.40%
Actuarial assumptions used to determine net periodic benefit cost for the twelve months ended December 31:
Discount rate - benefit obligation	3.30%	4.50%	4.50%
Interest crediting rate	6.00%	6.00%	6.00%
Expected rate of return on plan assets	5.40%	5.70%	5.70%
Expected annual rate of compensation increase	3.40%	3.40%	3.40%
Non-U.S. Plans
Actuarial assumptions used to determine benefit obligations as of December 31:
Discount rate	0.70%	1.10%	1.90%
Interest crediting rate	1.50%	1.50%	1.50%
Expected annual rate of compensation increase	2.40%	2.40%	2.30%
Actuarial assumptions used to determine net periodic benefit cost for the twelve months ended December 31:
Discount rate - benefit obligation	1.10%	2.00%	1.90%
Interest crediting rate	1.50%	1.50%	1.50%
Expected rate of return on plan assets	2.70%	2.80%	3.30%
Expected annual rate of compensation increase	2.40%	2.40%	2.30%

Weighted average rate for present value of future retirement benefits cash flows, used to determine benefit obligation of defined benefit plan.

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- Definition

Weighted average rate increase of compensation, used to determine benefit obligation of defined benefit plan. Plan includes, but is not limited to, pay-related defined benefit plan.

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- Definition

Weighted-average interest crediting rate used to determine benefit obligation of defined benefit plan. Plan includes, but is not limited to, cash balance and other defined benefit plans with promised interest crediting rate.

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- Definition

Weighted average rate for present value of future retirement benefits cash flows, used to determine net periodic benefit cost of defined benefit plan.

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- Definition

Weighted average rate of return on plan assets, reflecting average rate of earnings expected on existing plan assets and expected contributions, used to determine net periodic benefit cost of defined benefit plan.

+ 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 (k)(3)
-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 8
-URI http://asc.fasb.org/extlink&oid=118255775&loc=d3e2919-114920

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- Definition

Weighted average rate of compensation increase used to determine net periodic benefit cost of defined benefit plan. Plan includes, but is not limited to, pay-related defined benefit plan.

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