Supplemental Financial Information - General (Details) - Cephea Valve Technologies, Inc $ in Millions	3 Months Ended
Mar. 31, 2019 USD ($)
Business acquisitions
Research & development (R&D) asset	$ 102
Research & development expense	$ 102

Amount of intangible assets, excluding goodwill, acquired at the acquisition date.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 20
-Section 50
-Paragraph 1
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=116869197&loc=d3e4845-128472

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Balance Type:	debit
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