Consolidated Statements Of Cash Flows - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Operating activities
Net income	$ 355.7	$ 347.4	$ 666.5
Loss (income) from discontinued operations, net of tax	6.0	(25.7)	(371.3)
Gain from sale of discontinued operations, net of tax	0.0	0.0	(181.1)
Adjustments to reconcile net income from continuing operations to net cash provided by operating activities of continuing operations
Equity income of unconsolidated subsidiaries	(3.5)	(8.4)	(1.3)
Depreciation	48.3	49.7	50.8
Amortization	31.7	34.9	36.4
(Gain) loss on sale of businesses	(2.2)	7.3	4.2
Deferred income taxes	(18.4)	(4.1)	(18.0)
Share-based compensation	21.4	20.9	39.6
Trade name and other impairment	21.2	12.0	15.6
Loss on early extinguishment of debt	0.0	17.1	101.4
Pension and other post-retirement expense	1.9	13.2	24.9
Pension and other post-retirement contributions	(20.9)	(8.9)	(8.3)
Changes in assets and liabilities, net of effects of business acquisitions
Accounts receivable	(17.5)	(15.3)	(13.4)
Inventories	13.6	(40.1)	(20.5)
Other current assets	(18.4)	31.2	(13.0)
Accounts payable	(63.6)	58.3	15.6
Employee compensation and benefits	(19.1)	(0.6)	(1.4)
Other current liabilities	(0.4)	(3.3)	(54.6)
Other non-current assets and liabilities	9.4	(27.5)	6.5
Net cash provided by operating activities of continuing operations	345.2	458.1	278.6
Net cash provided by (used for) operating activities of discontinued operations	7.8	(19.0)	341.6
Net cash provided by operating activities of continuing operations	353.0	439.1	620.2
Investing activities
Capital expenditures	(58.5)	(48.2)	(39.1)
Proceeds from sale of property and equipment	0.6	0.2	3.7
Proceeds from (payments due to) sale of businesses	15.3	(12.8)	2,759.4
Acquisitions, net of cash acquired	(287.8)	(0.9)	(45.9)
Net cash (used for) provided by investing activities of continuing operations	(331.9)	(61.7)	2,678.1
Net cash used for investing activities of discontinued operations	0.0	(7.1)	(47.7)
Net cash (used for) provided by investing activities	(331.9)	(68.8)	2,630.4
Financing activities
Net receipts (repayments) of commercial paper and revolving long-term debt	51.5	39.7	(913.1)
Proceeds from long-term debt	600.0	0.0	0.0
Repayment of long-term debt	(401.5)	(675.1)	(2,009.3)
Premium paid on early extinguishment of debt	0.0	(16.0)	(94.9)
Distribution of cash from nVent, net of cash transferred	0.0	919.4	0.0
Shares issued to employees, net of shares withheld	12.5	13.3	37.2
Repurchases of ordinary shares	(150.0)	(500.0)	(200.0)
Dividends paid	(122.7)	(187.2)	(251.7)
Other	6.9	2.0	0.8
Net cash provided by (used for) financing activities of continuing operations	(17.1)	(407.9)	(3,432.6)
Change in cash held for sale	0.0	27.0	(5.4)
Effect of exchange rate changes on cash and cash equivalents	4.2	(1.4)	56.8
Change in cash and cash equivalents	8.2	(12.0)	(130.6)
Cash and cash equivalents, beginning of year	74.3	86.3	216.9
Cash and cash equivalents, end of year	82.5	74.3	86.3
Cash paid for interest, net	33.7	43.7	107.2
Cash paid for income taxes, net	$ 59.0	$ 92.9	$ 362.1