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Revenue Recognition Disaggregation of Revenue (Tables)

3 Months Ended

Mar. 31, 2022

Disaggregation of Revenue [Line Items]

Disaggregation of Revenue [Table Text Block]

									Three Months Ended March 31,
(in millions)												2022			2021
Revenue excluded from scope of ASC Topic 606												$	69.9		70.2

Contract with Customer, Contract Asset, Contract Liability, and Receivable [Table Text Block]

Such contract assets and liabilities are presented below.

(in millions)			March 31, 2022			December 31, 2021
Contract assets, gross			$	449.5		438.7
Contract asset allowance			(2.7)			(2.8)
Contract assets, net			$	446.8		435.9
Contract liabilities			$	123.0		128.9

X

- Definition

Tabular disclosure of receivable, contract asset, and contract liability from contract with customer. Includes, but is not limited to, change in contract asset and contract liability.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 10
-URI http://asc.fasb.org/extlink&oid=123351226&loc=SL49130551-203045

+ Details

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Period Type:	duration

X

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Tabular disclosure of disaggregation of revenue into categories depicting how nature, amount, timing, and uncertainty of revenue and cash flows are affected by economic factor.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 5
-URI http://asc.fasb.org/extlink&oid=123351226&loc=SL49130545-203045

+ Details

Name:	us-gaap_DisaggregationOfRevenueTableTextBlock
Namespace Prefix:	us-gaap_
Data Type:	dtr-types:textBlockItemType
Balance Type:	na
Period Type:	duration