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Pension Plans and Other Postretirement Benefits (Assumptions To Calculate The Results Of Our Retirement Plans) (Details)		12 Months Ended
	Jan. 01, 2021	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Pension Benefits | United States
Weighted-average assumptions used to determine net periodic benefit cost (income) for years ended December 31,
Discount rate		3.50%	4.25%	3.75%
Expected long-term rate of return on plan assets	8.00%	8.50%	8.50%	8.50%
Rate of projected compensation increase		3.50%	3.50%	3.50%
Weighted-average assumptions used to determine benefit obligations at December 31,
Discount rate		2.875%	3.50%	4.25%
Rate of projected compensation increase		3.50%	3.50%	3.50%
Pension Benefits | Foreign Retirement Plans
Weighted-average assumptions used to determine net periodic benefit cost (income) for years ended December 31,
Discount rate		1.81%	2.67%	2.36%
Expected long-term rate of return on plan assets		5.23%	5.58%	5.50%
Rate of projected compensation increase		3.96%	4.10%	4.14%
Weighted-average assumptions used to determine benefit obligations at December 31,
Discount rate		1.14%	1.81%	2.67%
Rate of projected compensation increase		3.94%	3.96%	4.10%
Postretirement Benefits | United States
Weighted-average assumptions used to determine net periodic benefit cost (income) for years ended December 31,
Discount rate		3.50%	4.25%	3.75%
Expected long-term rate of return on plan assets		4.50%	4.50%	4.50%
Weighted-average assumptions used to determine benefit obligations at December 31,
Discount rate		2.875%	3.50%	4.25%

X

- Definition

Weighted average rate for present value of future retirement benefits cash flows, used to determine benefit obligation 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)(1)
-URI http://asc.fasb.org/extlink&oid=118255775&loc=d3e1928-114920

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X

- 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.

+ 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)(2)
-URI http://asc.fasb.org/extlink&oid=118255775&loc=d3e1928-114920

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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.

+ 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)(1)
-URI http://asc.fasb.org/extlink&oid=118255775&loc=d3e1928-114920

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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.

+ 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)(2)
-URI http://asc.fasb.org/extlink&oid=118255775&loc=d3e1928-114920

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