Condensed Consolidated Statements of Cash Flows - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Statement of Cash Flows [Abstract]
Net Cash Provided by (Used in) Financing Activities, Continuing Operations	$ 559.0	$ 205.1
Operating activities
Net income	51.3	102.9
Loss (income) from discontinued operations, net of tax	1.1	(44.5)
Adjustments to reconcile net income from continuing operations to net cash provided by (used for) operating activities of continuing operations
Equity income of unconsolidated subsidiaries	(0.6)	(0.6)
Depreciation	12.0	12.6
Amortization	8.2	9.3
Deferred income taxes	(1.7)	(9.9)
Loss on sale of business	(3.5)	5.3
Share-based compensation	5.4	6.0
Asset Impairment	15.3	0.0
Changes in assets and liabilities, net of effects of business acquisitions
Accounts and notes receivable	(154.0)	(146.2)
Inventories	(22.2)	(8.4)
Other current assets	(22.5)	5.6
Accounts payable	(118.2)	(59.7)
Employee compensation and benefits	(18.9)	(30.1)
Other current liabilities	(8.3)	(39.6)
Other non-current assets and liabilities	(0.5)	3.3
Net cash used for operating activities of continuing operations	(257.1)	(194.0)
Net cash provided by operating activities of discontinued operations	0.8	26.4
Net cash used for operating activities	(256.3)	(167.6)
Investing activities
Capital expenditures	(16.8)	(11.5)
Proceeds from sale of property and equipment	0.3	0.0
Proceeds from (payments due to) the sale of businesses, net	0.7	(13.8)
Acquisitions, net of cash acquired	(287.2)	(0.9)
Payments for (Proceeds from) Other Investing Activities	1.5	0.0
Net cash used for investing activities of continuing operations	(304.5)	(26.2)
Net cash used for investing activities of discontinued operations	0.0	(5.0)
Net cash used for investing activities	(304.5)	(31.2)
Financing activities
Net receipts of commercial paper and revolving long-term debt	584.1	417.5
Shares issued to employees, net of shares withheld	5.9	0.9
Repurchases of ordinary shares	0.0	(150.0)
Dividends paid	(31.0)	(63.3)
Net cash provided by financing activities of continuing operations	559.0	997.8
Cash Provided by (Used in) Financing Activities, Discontinued Operations	0.0	792.7
Change in cash held for sale	0.0	(809.7)
Effect of exchange rate changes on cash and cash equivalents	6.4	(4.8)
Change in cash and cash equivalents	4.6	(15.5)
Cash and cash equivalents, beginning of period	74.3	86.3
Cash and cash equivalents, end of period	$ 78.9	$ 70.8