Employee Benefit Plans - Actual Asset Allocation Percentages (Details)	Dec. 31, 2021	Dec. 31, 2020
United States
Employee benefit plans
Actual Allocations	100.00%	100.00%
Mid-point of Target Allocation Range	100.00%
United States \| Fixed income common trust funds
Employee benefit plans
Actual Allocations	67.00%	68.00%
Mid-point of Target Allocation Range	65.00%
United States \| Commingled global fund allocation
Employee benefit plans
Actual Allocations	6.00%	11.00%
Mid-point of Target Allocation Range	6.00%
United States \| Global equity common trust funds
Employee benefit plans
Actual Allocations	15.00%	5.00%
Mid-point of Target Allocation Range	15.00%
United States \| U.S. Government securities
Employee benefit plans
Actual Allocations	10.00%	9.00%
Mid-point of Target Allocation Range	12.00%
United States \| Short-term investments and other
Employee benefit plans
Actual Allocations	2.00%	7.00%
Mid-point of Target Allocation Range	2.00%
Foreign Plan
Employee benefit plans
Actual Allocations	100.00%	100.00%
Mid-point of Target Allocation Range	100.00%
Foreign Plan \| Fixed income common trust funds
Employee benefit plans
Actual Allocations	61.00%	65.00%
Mid-point of Target Allocation Range	66.00%
Foreign Plan \| Commingled global fund allocation
Employee benefit plans
Actual Allocations	27.00%	25.00%
Mid-point of Target Allocation Range	25.00%
Foreign Plan \| Global equity common trust funds
Employee benefit plans
Actual Allocations	9.00%	9.00%
Mid-point of Target Allocation Range	9.00%
Foreign Plan \| Non-U.S. Government securities
Employee benefit plans
Actual Allocations	0.00%	0.00%
Mid-point of Target Allocation Range	0.00%
Foreign Plan \| Short-term investments
Employee benefit plans
Actual Allocations	3.00%	1.00%
Mid-point of Target Allocation Range	0.00%

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- Definition

Percentage of target investment allocation to total plan assets. Includes, but is not limited to, percentage on weighted-average basis if more than one plan.

+ References

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 20
-Section 55
-Paragraph 17
-URI http://asc.fasb.org/extlink&oid=123450688&loc=d3e4179-114921

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 20
-Section 50
-Paragraph 1
-Subparagraph (d)(i)
-URI http://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920

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- Definition

Percentage of actual investment allocation to total plan assets. Includes, but is not limited to, percentage on weighted-average basis if more than one plan.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 20
-Section 50
-Paragraph 1
-Subparagraph (d)(i)
-URI http://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920

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