Business Acquisitions and Dispositions - Schedule of Preliminary Purchase Price Allocation to Identified Intangible Assets Acquired (Details) - Aclara $ in Millions	Feb. 02, 2018 USD ($)
Business Acquisition [Line Items]
Estimated fair value	$ 434.0
Patents, tradenames and trademarks
Business Acquisition [Line Items]
Estimated fair value	$ 55.0
Weighted Average Estimated Useful Life	20 years
Customer relationships
Business Acquisition [Line Items]
Estimated fair value	$ 194.0
Weighted Average Estimated Useful Life	18 years
Developed technology
Business Acquisition [Line Items]
Estimated fair value	$ 185.0
Weighted Average Estimated Useful Life	13 years

Weighted average amortization period of finite-lived intangible assets acquired either individually or as part of a group of assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 30
-Section 50
-Paragraph 1
-Subparagraph (a)(3)
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- 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.

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- Definition

The amount of identifiable intangible assets recognized as of the acquisition date.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 10
-Section 55
-Paragraph 37
-URI http://asc.fasb.org/extlink&oid=116868840&loc=d3e2207-128464

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