Pension Plans and Similar Obligations - Actuarial Assumptions (Details)	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Other Foreign Post Employment Plans
Pension Plans and Similar Obligations
Discount rate	3.10%	3.00%	3.70%
Germany
Pension Plans and Similar Obligations
Discount rate	1.20%	0.90%	0.80%
Foreign
Pension Plans and Similar Obligations
Discount rate	0.50%	0.40%	0.30%

The discount rate used as the significant actuarial assumption to determine the present value of a defined benefit obligation. [Refer: Defined benefit obligation, at present value; Actuarial assumptions [member]]

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Name IAS
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-IssueDate 2021-01-01
-Paragraph 144
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