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.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
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Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
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Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
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Name:	us-gaap_RestructuringCharges
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

Restructuring (Textuals) (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended		36 Months Ended
Restructuring (Textuals) (Details) - USD ($) $ in Millions	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020	Dec. 31, 2021
Restructuring Cost and Reserve [Line Items]
Severance charges	$ 0.0	$ 13.8	$ 23.1	$ 35.3
Subsequent Event [Member] \| DN Now Plan [Member]
Restructuring Cost and Reserve [Line Items]
Anticipated Annual Synergies					$ 500.0