Supplemental Guarantor Information Supplemental Guarantor Information (Condensed Consolidating Statement of Cash Flows) (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended		12 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016	Dec. 31, 2016
Net cash used by operating activities			$ (185.8)	$ (206.0)
Cash flow from investing activities:
Payments for acquisition, net of cash acquired			(2.4)	0.0
Proceeds from maturities of investments			145.0	107.1
Proceeds from Derivative Instrument, Investing Activities			0.0	42.6
Payments for purchases of investments			(173.7)	(85.9)
Proceeds from sale of assets			11.4	0.4
Capital expenditures			(26.4)	(11.3)
Increase (Decrease) in Restricted Cash			0.0	(1,768.1)
Increase in certain other assets			(17.6)	(9.3)
Capital contributions and loans paid			0.0	0.0
Proceeds from intercompany loans			0.0	0.0
Net cash used by investing activities - continuing operations			(63.7)	(1,724.5)
Net cash provided by investing activities - discontinued operations			0.0	365.1
Net cash used by investing activities			(63.7)	(1,359.4)
Cash flow from financing activities:
Dividends paid	$ (7.7)	$ (19.2)	(15.3)	(38.0)
Debt issuance costs			(1.1)	(11.2)
Restricted cash, net			0.0	(54.9)
Revolving credit facility borrowings (repayments), net			119.1	142.0
Other debt borrowings			370.3	1,807.0
Other debt repayments			(416.5)	(256.2)
Distributions and payments to noncontrolling interest holders			(16.3)	(2.0)
Issuance of common shares			0.3	0.0
Repurchase of common shares			(4.5)	(2.0)
Capital contributions received and loans incurred			0.0	0.0
Payments on intercompany loans			0.0	0.0
Net cash provided by financing activities			36.0	1,584.7
Effect of exchange rate changes on cash and cash equivalents			12.1	4.1
Increase (decrease) in cash and cash equivalents			(201.4)	23.4
Add: Cash overdraft included in assets held for sale at beginning of period			0.0	(1.5)	$ (1.5)
Less: Cash overdraft included in assets held for sale at end of period					0.0
Cash and cash equivalents at the beginning of the period			652.7	313.6	313.6
Cash and cash equivalents at the end of the period	451.3	335.5	451.3	335.5	652.7
Reportable Legal Entities [Member] | Parent Company [Member]
Net cash used by operating activities			(116.1)	(152.1)
Cash flow from investing activities:
Payments for acquisition, net of cash acquired			0.0
Proceeds from maturities of investments			(0.7)	0.0
Proceeds from Derivative Instrument, Investing Activities				42.6
Payments for purchases of investments			(14.0)	0.0
Proceeds from sale of assets			0.0	0.0
Capital expenditures			(2.9)	(3.1)
Increase (Decrease) in Restricted Cash				(1,768.1)
Increase in certain other assets			(4.9)	(13.2)
Capital contributions and loans paid			(252.6)	(90.1)
Proceeds from intercompany loans			171.9	74.7
Net cash used by investing activities - continuing operations				(1,757.2)
Net cash provided by investing activities - discontinued operations				365.1
Net cash used by investing activities			(103.2)	(1,392.1)
Cash flow from financing activities:
Dividends paid			(15.3)	(38.0)
Debt issuance costs			(1.1)	(11.2)
Restricted cash, net				(54.9)
Revolving credit facility borrowings (repayments), net			119.1	142.0
Other debt borrowings			323.3	1,781.1
Other debt repayments			(334.4)	(230.8)
Distributions and payments to noncontrolling interest holders			0.0	0.0
Issuance of common shares			0.3
Repurchase of common shares			(4.5)	(2.0)
Capital contributions received and loans incurred			0.0	0.0
Payments on intercompany loans			0.0	0.0
Net cash provided by financing activities			87.4	1,586.2
Effect of exchange rate changes on cash and cash equivalents			0.0	0.0
Increase (decrease) in cash and cash equivalents			(131.9)	42.0
Add: Cash overdraft included in assets held for sale at beginning of period				(1.5)	(1.5)
Cash and cash equivalents at the beginning of the period			138.4	20.3	20.3
Cash and cash equivalents at the end of the period	6.5	60.8	6.5	60.8	138.4
Reportable Legal Entities [Member] | Guarantor Subsidiaries [Member]
Net cash used by operating activities			(13.3)	(27.6)
Cash flow from investing activities:
Payments for acquisition, net of cash acquired			0.0
Proceeds from maturities of investments			0.0	0.0
Proceeds from Derivative Instrument, Investing Activities				0.0
Payments for purchases of investments			0.0	0.0
Proceeds from sale of assets			0.0	0.0
Capital expenditures			0.0	(0.4)
Increase (Decrease) in Restricted Cash				0.0
Increase in certain other assets			3.9	(3.0)
Capital contributions and loans paid			0.0	0.0
Proceeds from intercompany loans			0.0	0.0
Net cash used by investing activities - continuing operations				(3.4)
Net cash provided by investing activities - discontinued operations				0.0
Net cash used by investing activities			3.9	(3.4)
Cash flow from financing activities:
Dividends paid			0.0	0.0
Debt issuance costs			0.0	0.0
Restricted cash, net				0.0
Revolving credit facility borrowings (repayments), net			0.0	0.0
Other debt borrowings			0.0	0.0
Other debt repayments			(0.8)	(0.5)
Distributions and payments to noncontrolling interest holders			0.0	0.0
Issuance of common shares			0.0
Repurchase of common shares			0.0	0.0
Capital contributions received and loans incurred			37.4	77.8
Payments on intercompany loans			(27.3)	(51.5)
Net cash provided by financing activities			9.3	25.8
Effect of exchange rate changes on cash and cash equivalents			0.0	0.0
Increase (decrease) in cash and cash equivalents			(0.1)	(5.2)
Add: Cash overdraft included in assets held for sale at beginning of period				0.0	0.0
Cash and cash equivalents at the beginning of the period			2.3	7.9	7.9
Cash and cash equivalents at the end of the period	2.2	2.7	2.2	2.7	2.3
Reportable Legal Entities [Member] | Non-Guarantor Subsidiaries [Member]
Net cash used by operating activities			(163.7)	(26.3)
Cash flow from investing activities:
Payments for acquisition, net of cash acquired			(2.4)
Proceeds from maturities of investments			145.7	107.1
Proceeds from Derivative Instrument, Investing Activities				0.0
Payments for purchases of investments			(159.7)	(85.9)
Proceeds from sale of assets			11.4	0.4
Capital expenditures			(23.5)	(7.8)
Increase (Decrease) in Restricted Cash				0.0
Increase in certain other assets			(16.6)	6.9
Capital contributions and loans paid			0.0	0.0
Proceeds from intercompany loans			0.0	0.0
Net cash used by investing activities - continuing operations				20.7
Net cash provided by investing activities - discontinued operations				0.0
Net cash used by investing activities			(45.1)	20.7
Cash flow from financing activities:
Dividends paid			0.0	0.0
Debt issuance costs			0.0	0.0
Restricted cash, net				0.0
Revolving credit facility borrowings (repayments), net			0.0	0.0
Other debt borrowings			154.3	25.9
Other debt repayments			(81.3)	(24.9)
Distributions and payments to noncontrolling interest holders			(16.3)	(2.0)
Issuance of common shares			0.0
Repurchase of common shares			0.0	0.0
Capital contributions received and loans incurred			215.2	12.3
Payments on intercompany loans			(144.6)	(23.2)
Net cash provided by financing activities			127.3	(11.9)
Effect of exchange rate changes on cash and cash equivalents			12.1	4.1
Increase (decrease) in cash and cash equivalents			(69.4)	(13.4)
Add: Cash overdraft included in assets held for sale at beginning of period				0.0	0.0
Cash and cash equivalents at the beginning of the period			512.0	285.4	285.4
Cash and cash equivalents at the end of the period	442.6	272.0	442.6	272.0	512.0
Consolidation, Eliminations [Member]
Net cash used by operating activities			107.3	0.0
Cash flow from investing activities:
Payments for acquisition, net of cash acquired			0.0
Proceeds from maturities of investments			0.0	0.0
Proceeds from Derivative Instrument, Investing Activities				0.0
Payments for purchases of investments			0.0	0.0
Proceeds from sale of assets			0.0	0.0
Capital expenditures			0.0	0.0
Increase (Decrease) in Restricted Cash				0.0
Increase in certain other assets			0.0	0.0
Capital contributions and loans paid			252.6	90.1
Proceeds from intercompany loans			(171.9)	(74.7)
Net cash used by investing activities - continuing operations				15.4
Net cash provided by investing activities - discontinued operations				0.0
Net cash used by investing activities			80.7	15.4
Cash flow from financing activities:
Dividends paid			0.0	0.0
Debt issuance costs			0.0	0.0
Restricted cash, net				0.0
Revolving credit facility borrowings (repayments), net			0.0	0.0
Other debt borrowings			(107.3)	0.0
Other debt repayments			0.0	0.0
Distributions and payments to noncontrolling interest holders			0.0	0.0
Issuance of common shares			0.0
Repurchase of common shares			0.0	0.0
Capital contributions received and loans incurred			(252.6)	(90.1)
Payments on intercompany loans			171.9	74.7
Net cash provided by financing activities			(188.0)	(15.4)
Effect of exchange rate changes on cash and cash equivalents			0.0	0.0
Increase (decrease) in cash and cash equivalents			0.0	0.0
Add: Cash overdraft included in assets held for sale at beginning of period				0.0	0.0
Cash and cash equivalents at the beginning of the period			0.0	0.0	0.0
Cash and cash equivalents at the end of the period	$ 0.0	$ 0.0	$ 0.0	$ 0.0	$ 0.0