Financial Information for Guarantor Subsidiaries and Non-Guarantor Subsidiaries (Supplemental Condensed Consolidating Balance Sheet) (Details) - USD ($) $ in Millions	Jun. 30, 2015	Dec. 31, 2014	Jun. 30, 2014	Dec. 31, 2013
Assets
Cash and cash equivalents	$ 129.1	$ 171.8	$ 89.2	$ 153.7
Restricted cash	26.7	27.2
Accounts receivable, net	485.2	468.4
Notes receivable, net	169.8	188.7
Inventories	250.4	265.6
Other current assets	287.2	256.3
Long-term notes receivable	902.2	1,012.8
Investment in subsidiaries	0.0	0.0
Goodwill	4,048.7	4,108.3		1,183.1
Intangible assets, net	2,108.7	2,251.6
Intercompany balances	0.0	0.0
Software, net	539.1	592.7
Other assets	539.4	651.8
Total assets	9,486.5	9,995.2
Liabilities and stockholders' equity
Debt payments due within one year	50.6	50.6
Other current liabilities	556.6	609.7
Long-term debt, excluding current installments	8,432.0	8,465.4
Other long-term liabilities	707.4	865.6
Intercompany balances	0.0	0.0
Stockholders’ (deficit) equity	(260.1)	3.9
Total liabilities and stockholders’ (deficit) equity	9,486.5	9,995.2
Parent Company
Assets
Cash and cash equivalents	41.9	37.9	16.3	56.0
Restricted cash	0.0	0.0
Accounts receivable, net	0.0	0.0
Notes receivable, net	0.0	0.0
Inventories	0.0	0.0
Other current assets	20.7	65.4
Long-term notes receivable	1.1	0.5
Investment in subsidiaries	4,357.9	4,730.7
Goodwill	0.0	0.0
Intangible assets, net	153.4	162.0
Intercompany balances	0.0	0.0
Software, net	17.4	15.6
Other assets	4.7	2.8
Total assets	4,597.1	5,014.9
Liabilities and stockholders' equity
Debt payments due within one year	0.0	0.0
Other current liabilities	66.2	68.9
Long-term debt, excluding current installments	250.0	250.0
Other long-term liabilities	133.0	136.2
Intercompany balances	4,408.0	4,555.9
Stockholders’ (deficit) equity	(260.1)	3.9
Total liabilities and stockholders’ (deficit) equity	4,597.1	5,014.9
SGI
Assets
Cash and cash equivalents	1.4	0.1	0.1	0.0
Restricted cash	0.0	0.0
Accounts receivable, net	61.6	61.8
Notes receivable, net	0.0	0.0
Inventories	32.6	35.2
Other current assets	20.4	20.2
Long-term notes receivable	114.5	119.5
Investment in subsidiaries	869.0	953.4
Goodwill	253.6	253.6
Intangible assets, net	41.4	42.2
Intercompany balances	6,512.5	6,580.0
Software, net	30.9	32.9
Other assets	233.7	255.4
Total assets	8,171.6	8,354.3
Liabilities and stockholders' equity
Debt payments due within one year	43.0	43.0
Other current liabilities	124.7	119.8
Long-term debt, excluding current installments	8,158.7	8,187.7
Other long-term liabilities	59.8	74.0
Intercompany balances	0.0	(0.1)
Stockholders’ (deficit) equity	(214.6)	(70.1)
Total liabilities and stockholders’ (deficit) equity	8,171.6	8,354.3
Guarantor Subsidiaries
Assets
Cash and cash equivalents	15.8	28.8	1.3	24.4
Restricted cash	26.6	27.1
Accounts receivable, net	214.0	212.9
Notes receivable, net	113.5	136.6
Inventories	115.4	133.8
Other current assets	185.3	114.7
Long-term notes receivable	561.3	660.4
Investment in subsidiaries	946.5	975.2
Goodwill	2,772.9	2,781.6
Intangible assets, net	1,656.1	1,761.8
Intercompany balances	0.0	0.0
Software, net	425.7	467.3
Other assets	73.3	96.8
Total assets	7,106.4	7,397.0
Liabilities and stockholders' equity
Debt payments due within one year	0.0	0.0
Other current liabilities	221.3	247.2
Long-term debt, excluding current installments	0.0	0.0
Other long-term liabilities	458.9	593.7
Intercompany balances	1,821.0	1,637.9
Stockholders’ (deficit) equity	4,605.2	4,918.2
Total liabilities and stockholders’ (deficit) equity	7,106.4	7,397.0
Non-Guarantor Subsidiaries
Assets
Cash and cash equivalents	70.0	105.0	71.5	73.3
Restricted cash	0.1	0.1
Accounts receivable, net	209.6	193.7
Notes receivable, net	56.3	52.1
Inventories	119.5	124.4
Other current assets	60.8	56.0
Long-term notes receivable	234.3	241.7
Investment in subsidiaries	0.0	0.0
Goodwill	1,022.2	1,073.1
Intangible assets, net	257.8	285.6
Intercompany balances	0.0	0.0
Software, net	65.1	76.9
Other assets	227.7	296.8
Total assets	2,323.4	2,505.4
Liabilities and stockholders' equity
Debt payments due within one year	7.6	7.6
Other current liabilities	144.4	173.8
Long-term debt, excluding current installments	23.3	27.7
Other long-term liabilities	55.7	61.7
Intercompany balances	283.5	386.3
Stockholders’ (deficit) equity	1,808.9	1,848.3
Total liabilities and stockholders’ (deficit) equity	2,323.4	2,505.4
Eliminating Entries
Assets
Cash and cash equivalents	0.0	0.0	$ 0.0	$ 0.0
Restricted cash	0.0	0.0
Accounts receivable, net	0.0	0.0
Notes receivable, net	0.0	0.0
Inventories	(17.1)	(27.8)
Other current assets	0.0	0.0
Long-term notes receivable	(9.0)	(9.3)
Investment in subsidiaries	(6,173.4)	(6,659.3)
Goodwill	0.0	0.0
Intangible assets, net	0.0	0.0
Intercompany balances	(6,512.5)	(6,580.0)
Software, net	0.0	0.0
Other assets	0.0	0.0
Total assets	(12,712.0)	(13,276.4)
Liabilities and stockholders' equity
Debt payments due within one year	0.0	0.0
Other current liabilities	0.0	0.0
Long-term debt, excluding current installments	0.0	0.0
Other long-term liabilities	0.0	0.0
Intercompany balances	(6,512.5)	(6,580.0)
Stockholders’ (deficit) equity	(6,199.5)	(6,696.4)
Total liabilities and stockholders’ (deficit) equity	$ (12,712.0)	$ (13,276.4)