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Project Summit - Restructuring Rollforward (Details) - USD ($)	1 Months Ended	3 Months Ended			12 Months Ended			27 Months Ended
	Oct. 31, 2019	Mar. 31, 2022	Mar. 31, 2021	Dec. 31, 2019	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2021
Restructuring Reserve [Roll Forward]
Amounts accrued		$ 0	$ 39,811,000		$ 206,426,000	$ 194,396,000	$ 48,597,000	$ 449,419,000
Project Summit Costs
Restructuring Reserve [Roll Forward]
Beginning balance	$ 0	19,717,000	40,053,000	$ 0	40,053,000	17,777,000		0
Amounts accrued	450,000,000	0	39,811,000	48,597,000	206,426,000	194,396,000
Payments				(30,820,000)	(229,620,000)	(168,677,000)
Other, including currency translation adjustments					2,858,000	(3,443,000)
Ending balance				17,777,000	19,717,000	40,053,000	17,777,000	19,717,000
EMPLOYEE SEVERANCE COSTS
Restructuring Reserve [Roll Forward]
Amounts accrued					22,809,000	47,349,000	20,850,000	91,008,000
EMPLOYEE SEVERANCE COSTS | Project Summit Costs
Restructuring Reserve [Roll Forward]
Beginning balance	0	11,989,000	16,278,000	0	16,278,000	4,823,000		0
Amounts accrued			3,808,000	20,850,000	22,809,000	47,349,000
Payments				(16,027,000)	(29,956,000)	(32,455,000)
Other, including currency translation adjustments					2,858,000	(3,439,000)
Ending balance				4,823,000	11,989,000	16,278,000	4,823,000	11,989,000
PROFESSIONAL FEES AND OTHER
Restructuring Reserve [Roll Forward]
Amounts accrued					183,617,000	147,047,000	27,747,000	358,411,000
PROFESSIONAL FEES AND OTHER | Project Summit Costs
Restructuring Reserve [Roll Forward]
Beginning balance	$ 0	$ 7,728,000	23,775,000	0	23,775,000	12,954,000		0
Amounts accrued			$ 36,003,000	27,747,000	183,617,000	147,047,000
Payments				(14,793,000)	(199,664,000)	(136,222,000)
Other, including currency translation adjustments					0	(4,000)
Ending balance				$ 12,954,000	$ 7,728,000	$ 23,775,000	$ 12,954,000	$ 7,728,000

X

- Definition

Amount of cash payments made as the result of exit or disposal activities. Excludes payments associated with a discontinued operation or an asset retirement obligation.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 420
-SubTopic 10
-Section 50
-Paragraph 1
-Subparagraph (b)(2)
-URI http://asc.fasb.org/extlink&oid=6394359&loc=d3e17939-110869

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 17
-Subparagraph (f)
-URI http://asc.fasb.org/extlink&oid=123570139&loc=d3e3367-108585

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- Definition

Amount of expenses associated with exit or disposal activities pursuant to an authorized plan. Excludes expenses related to a discontinued operation or an asset retirement obligation.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 420
-SubTopic 10
-Section 45
-Paragraph 3
-URI http://asc.fasb.org/extlink&oid=109237686&loc=d3e17752-110868

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 420
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SAB Topic 5.P.3)
-URI http://asc.fasb.org/extlink&oid=115931487&loc=d3e140864-122747

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-Publisher FASB
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-Topic 230
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-Paragraph 28
-Subparagraph (b)
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-Publisher FASB
-Name Accounting Standards Codification
-Topic 420
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-Paragraph 2
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- Definition

Carrying amount (including both current and noncurrent portions of the accrual) as of the balance sheet date pertaining to a specified type of cost associated with exit from or disposal of business activities or restructuring pursuant to a duly authorized plan.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 420
-SubTopic 10
-Section 50
-Paragraph 1
-Subparagraph (b)(2)
-URI http://asc.fasb.org/extlink&oid=6394359&loc=d3e17939-110869

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A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

+ References

No definition available.

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- Definition

Amount of increase (decrease) in the restructuring reserve related to foreign currency translation (gain) loss and other increases (decreases).

+ References

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 420
-SubTopic 10
-Section S99
-Paragraph 2
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