CONSOLIDATED STATEMENT OF INCOME (Parenthetical) - USD ($) $ in Millions	3 Months Ended	9 Months Ended
Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Special charges	$ 75.6	$ 4.9	$ 113.7	$ 47.9
Cost of sales
Special charges	3.6	0.3	3.5	26.2
Product and equipment \| Cost of sales
Special charges	$ 3.6	$ 0.3	$ 3.5	$ 26.2

Amount of other expense (income) that is infrequent in occurrence or unusual in nature.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 225
-SubTopic 20
-Section 50
-Paragraph 3
-URI http://asc.fasb.org/extlink&oid=64828382&loc=d3e15138-107781

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration