Guarantor Financial Information (Condensed Consolidating Statements of Cash Flows) (Details) - USD ($) $ in Millions | 3 Months Ended | | |
Mar. 31, 2019 | Mar. 31, 2018 | Dec. 31, 2018 | Dec. 31, 2017 |
Condensed Financial Statements, Captions [Line Items] | | | | |
Net cash provided by (used in) continuing operating activities | $ (37.1) | $ (45.8) | | |
Net cash provided by (used in) discontinued operating activities | (15.5) | (20.4) | | |
Net Cash Provided by (Used in) Operating Activities | (52.6) | (66.2) | | |
Cash flows from investing activities: | | | | |
Capital expenditures | (60.8) | (52.8) | | |
Acquisitions of businesses, net of cash acquired | (22) | (201.6) | | |
Proceeds from sale of property, plant and equipment | | (3.3) | | |
Proceeds from Equity Method Investment, Distribution | (6.4) | | | |
Payments for (Proceeds from) Businesses and Interest in Affiliates | 0 | 0 | | |
Net cash provided by (used in) continuing investing activities | (76.4) | (257.7) | | |
Cash flows from financing activities: | | | | |
Net proceeds (repayments) in debt | (1,521.8) | (279.5) | | |
Debt issuance costs | (10.6) | (8.5) | | |
DividendsPaid | 127.7 | 111.6 | | |
Dividends paid to noncontrolling interests | (9.3) | (11) | | |
Repurchase of ordinary shares | (250) | (250) | | |
Other, net | 5.9 | 5.2 | | |
Net proceeds from (payments of) debt | 0 | 0 | | |
Net cash provided by (used in) continuing financing activities | 1,130.1 | (96.4) | | |
Effect of exchange rate changes on cash and cash equivalents | 2.9 | 46 | | |
Net increase (decrease) in cash and cash equivalents | 1,004 | (374.3) | | |
Cash and cash equivalents | 1,907.4 | 1,175.1 | $ 903.4 | $ 1,549.4 |
IR Ireland [Member] | | | | |
Condensed Financial Statements, Captions [Line Items] | | | | |
Net cash provided by (used in) continuing operating activities | 92.9 | 102.6 | | |
Net cash provided by (used in) discontinued operating activities | 0 | 0 | | |
Net Cash Provided by (Used in) Operating Activities | 92.9 | 102.6 | | |
Cash flows from investing activities: | | | | |
Capital expenditures | 0 | 0 | | |
Acquisitions of businesses, net of cash acquired | 0 | 0 | | |
Proceeds from sale of property, plant and equipment | | 0 | | |
Proceeds from Equity Method Investment, Distribution | 0 | | | |
Payments for (Proceeds from) Businesses and Interest in Affiliates | 0 | 0 | | |
Net cash provided by (used in) continuing investing activities | 0 | 0 | | |
Cash flows from financing activities: | | | | |
Net proceeds (repayments) in debt | 0 | 0 | | |
Debt issuance costs | 0 | 0 | | |
DividendsPaid | 127.7 | 111.6 | | |
Dividends paid to noncontrolling interests | 0 | 0 | | |
Repurchase of ordinary shares | (250) | (250) | | |
Other, net | 6.3 | 6.6 | | |
Net proceeds from (payments of) debt | 278.5 | 252.4 | | |
Net cash provided by (used in) continuing financing activities | (92.9) | (102.6) | | |
Effect of exchange rate changes on cash and cash equivalents | 0 | 0 | | |
Net increase (decrease) in cash and cash equivalents | 0 | 0 | | |
Cash and cash equivalents | 0 | 0 | 0 | 0 |
IR International [Member] | | | | |
Cash flows from investing activities: | | | | |
Proceeds from Equity Method Investment, Distribution | 0 | | | |
IR Irish Holdings [Member] | | | | |
Condensed Financial Statements, Captions [Line Items] | | | | |
Net cash provided by (used in) continuing operating activities | 0 | 0 | | |
Net cash provided by (used in) discontinued operating activities | 0 | 0 | | |
Net Cash Provided by (Used in) Operating Activities | 0 | 0 | | |
Cash flows from investing activities: | | | | |
Capital expenditures | 0 | 0 | | |
Acquisitions of businesses, net of cash acquired | 0 | 0 | | |
Proceeds from sale of property, plant and equipment | | 0 | | |
Payments for (Proceeds from) Businesses and Interest in Affiliates | 0 | 0 | | |
Net cash provided by (used in) continuing investing activities | 0 | 0 | | |
Cash flows from financing activities: | | | | |
Net proceeds (repayments) in debt | 0 | 0 | | |
Debt issuance costs | 0 | 0 | | |
DividendsPaid | 0 | 0 | | |
Dividends paid to noncontrolling interests | 0 | 0 | | |
Repurchase of ordinary shares | 0 | 0 | | |
Other, net | 0 | 0 | | |
Net proceeds from (payments of) debt | 0 | 0 | | |
Net cash provided by (used in) continuing financing activities | 0 | 0 | | |
Effect of exchange rate changes on cash and cash equivalents | 0 | 0 | | |
Net increase (decrease) in cash and cash equivalents | 0 | 0 | | |
Cash and cash equivalents | 0.1 | 0 | 0.1 | 0 |
IR Lux International [Member] | | | | |
Condensed Financial Statements, Captions [Line Items] | | | | |
Net cash provided by (used in) continuing operating activities | (0.1) | 0 | | |
Net cash provided by (used in) discontinued operating activities | 0 | 0 | | |
Net Cash Provided by (Used in) Operating Activities | (0.1) | 0 | | |
Cash flows from investing activities: | | | | |
Capital expenditures | 0 | 0 | | |
Acquisitions of businesses, net of cash acquired | 0 | 0 | | |
Proceeds from sale of property, plant and equipment | | (4) | | |
Proceeds from Equity Method Investment, Distribution | 0 | | | |
Payments for (Proceeds from) Businesses and Interest in Affiliates | 0.6 | (0.5) | | |
Net cash provided by (used in) continuing investing activities | 0.6 | (4.5) | | |
Cash flows from financing activities: | | | | |
Net proceeds (repayments) in debt | 0 | 0 | | |
Debt issuance costs | 0 | 0 | | |
DividendsPaid | 0 | 0 | | |
Dividends paid to noncontrolling interests | 0 | 0 | | |
Repurchase of ordinary shares | 0 | 0 | | |
Other, net | 0 | 0 | | |
Net proceeds from (payments of) debt | (0.6) | 4 | | |
Net cash provided by (used in) continuing financing activities | (0.6) | 4 | | |
Effect of exchange rate changes on cash and cash equivalents | 0 | 0 | | |
Net increase (decrease) in cash and cash equivalents | (0.1) | (0.5) | | |
Cash and cash equivalents | 0.1 | 0.1 | 0.2 | 0.6 |
IR Global [Member] | | | | |
Condensed Financial Statements, Captions [Line Items] | | | | |
Net cash provided by (used in) continuing operating activities | (21.2) | (32.2) | | |
Net cash provided by (used in) discontinued operating activities | 0 | 0 | | |
Net Cash Provided by (Used in) Operating Activities | (21.2) | (32.2) | | |
Cash flows from investing activities: | | | | |
Capital expenditures | 0 | 0 | | |
Acquisitions of businesses, net of cash acquired | 0 | 0 | | |
Proceeds from sale of property, plant and equipment | | 0 | | |
Proceeds from Equity Method Investment, Distribution | 0 | | | |
Payments for (Proceeds from) Businesses and Interest in Affiliates | 0 | 0 | | |
Net cash provided by (used in) continuing investing activities | 0 | 0 | | |
Cash flows from financing activities: | | | | |
Net proceeds (repayments) in debt | 0 | (31.6) | | |
Debt issuance costs | 0 | (8.5) | | |
DividendsPaid | 0 | 0 | | |
Dividends paid to noncontrolling interests | 0 | 0 | | |
Repurchase of ordinary shares | 0 | 0 | | |
Other, net | 0 | 0 | | |
Net proceeds from (payments of) debt | 21.2 | 9.1 | | |
Net cash provided by (used in) continuing financing activities | 21.2 | 32.2 | | |
Effect of exchange rate changes on cash and cash equivalents | 0 | 0 | | |
Net increase (decrease) in cash and cash equivalents | 0 | 0 | | |
Cash and cash equivalents | 0 | 0 | 0 | 0 |
IR New Jersey [Member] | | | | |
Condensed Financial Statements, Captions [Line Items] | | | | |
Net cash provided by (used in) continuing operating activities | (346.8) | 19.6 | | |
Net cash provided by (used in) discontinued operating activities | (19.7) | (20.3) | | |
Net Cash Provided by (Used in) Operating Activities | (366.5) | (0.7) | | |
Cash flows from investing activities: | | | | |
Capital expenditures | (6.7) | (8.8) | | |
Acquisitions of businesses, net of cash acquired | 0 | 0 | | |
Proceeds from sale of property, plant and equipment | | 0 | | |
Proceeds from Equity Method Investment, Distribution | (1) | | | |
Payments for (Proceeds from) Businesses and Interest in Affiliates | 2.5 | (208.8) | | |
Net cash provided by (used in) continuing investing activities | (3.2) | (217.6) | | |
Cash flows from financing activities: | | | | |
Net proceeds (repayments) in debt | 0 | 0 | | |
Debt issuance costs | 0.2 | 0 | | |
DividendsPaid | 0 | 0 | | |
Dividends paid to noncontrolling interests | 0 | 0 | | |
Repurchase of ordinary shares | 0 | 0 | | |
Other, net | (0.4) | (0.4) | | |
Net proceeds from (payments of) debt | 6.8 | (105) | | |
Net cash provided by (used in) continuing financing activities | 6.2 | (105.4) | | |
Effect of exchange rate changes on cash and cash equivalents | 0 | 0 | | |
Net increase (decrease) in cash and cash equivalents | (363.5) | (323.7) | | |
Cash and cash equivalents | 0 | 35.6 | 363.5 | 359.3 |
IR Lux Finance [Member] | | | | |
Condensed Financial Statements, Captions [Line Items] | | | | |
Net cash provided by (used in) continuing operating activities | (1) | (0.3) | | |
Net cash provided by (used in) discontinued operating activities | 0 | 0 | | |
Net Cash Provided by (Used in) Operating Activities | (1) | (0.3) | | |
Cash flows from investing activities: | | | | |
Capital expenditures | 0 | 0 | | |
Acquisitions of businesses, net of cash acquired | 0 | 0 | | |
Proceeds from sale of property, plant and equipment | | 0 | | |
Proceeds from Equity Method Investment, Distribution | 0 | | | |
Payments for (Proceeds from) Businesses and Interest in Affiliates | (303.1) | 0 | | |
Net cash provided by (used in) continuing investing activities | (303.1) | 0 | | |
Cash flows from financing activities: | | | | |
Net proceeds (repayments) in debt | (1,521.8) | (247.9) | | |
Debt issuance costs | 10.4 | 0 | | |
DividendsPaid | 0 | 0 | | |
Dividends paid to noncontrolling interests | 0 | 0 | | |
Repurchase of ordinary shares | 0 | 0 | | |
Other, net | 0 | 0 | | |
Net proceeds from (payments of) debt | 0 | (247.5) | | |
Net cash provided by (used in) continuing financing activities | 1,511.4 | 0.4 | | |
Effect of exchange rate changes on cash and cash equivalents | 0 | 0 | | |
Net increase (decrease) in cash and cash equivalents | 1,207.3 | 0.1 | | |
Cash and cash equivalents | 1,207.3 | 0.1 | 0 | 0 |
Other Subsidiaries [Member] | | | | |
Condensed Financial Statements, Captions [Line Items] | | | | |
Net cash provided by (used in) continuing operating activities | 239.1 | (135.5) | | |
Net cash provided by (used in) discontinued operating activities | 4.2 | (0.1) | | |
Net Cash Provided by (Used in) Operating Activities | 243.3 | (135.6) | | |
Cash flows from investing activities: | | | | |
Capital expenditures | (54.1) | (44) | | |
Acquisitions of businesses, net of cash acquired | (22) | (201.6) | | |
Proceeds from sale of property, plant and equipment | | 0.7 | | |
Proceeds from Equity Method Investment, Distribution | (5.4) | | | |
Payments for (Proceeds from) Businesses and Interest in Affiliates | 66.1 | 287 | | |
Net cash provided by (used in) continuing investing activities | (4.6) | 42.1 | | |
Cash flows from financing activities: | | | | |
Net proceeds (repayments) in debt | 0 | 0 | | |
Debt issuance costs | 0 | 0 | | |
DividendsPaid | 0 | 0 | | |
Dividends paid to noncontrolling interests | (9.3) | (11) | | |
Repurchase of ordinary shares | 0 | 0 | | |
Other, net | 0 | (1) | | |
Net proceeds from (payments of) debt | (72) | 9.3 | | |
Net cash provided by (used in) continuing financing activities | (81.3) | (2.7) | | |
Effect of exchange rate changes on cash and cash equivalents | 2.9 | 46 | | |
Net increase (decrease) in cash and cash equivalents | 160.3 | (50.2) | | |
Cash and cash equivalents | 699.9 | 1,139.3 | 539.6 | 1,189.5 |
Consolidation, Eliminations [Member] | | | | |
Condensed Financial Statements, Captions [Line Items] | | | | |
Net cash provided by (used in) continuing operating activities | 0 | 0 | | |
Net cash provided by (used in) discontinued operating activities | 0 | 0 | | |
Net Cash Provided by (Used in) Operating Activities | 0 | 0 | | |
Cash flows from investing activities: | | | | |
Capital expenditures | 0 | 0 | | |
Acquisitions of businesses, net of cash acquired | 0 | 0 | | |
Proceeds from sale of property, plant and equipment | | 0 | | |
Proceeds from Equity Method Investment, Distribution | 0 | | | |
Payments for (Proceeds from) Businesses and Interest in Affiliates | 233.9 | (77.7) | | |
Net cash provided by (used in) continuing investing activities | 233.9 | (77.7) | | |
Cash flows from financing activities: | | | | |
Net proceeds (repayments) in debt | 0 | 0 | | |
Debt issuance costs | 0 | 0 | | |
DividendsPaid | 0 | 0 | | |
Dividends paid to noncontrolling interests | 0 | 0 | | |
Repurchase of ordinary shares | 0 | 0 | | |
Other, net | 0 | 0 | | |
Net proceeds from (payments of) debt | (233.9) | 77.7 | | |
Net cash provided by (used in) continuing financing activities | (233.9) | 77.7 | | |
Effect of exchange rate changes on cash and cash equivalents | 0 | 0 | | |
Net increase (decrease) in cash and cash equivalents | 0 | 0 | | |
Cash and cash equivalents | $ 0 | $ 0 | $ 0 | $ 0 |