v3.3.1.900
Guarantor Information - Guarantor Condensed Consolidating Balance Sheet Information (Detail) - USD ($)
$ in Millions
Dec. 31, 2015
Dec. 31, 2014
Dec. 31, 2013
Dec. 31, 2012
Assets:        
Cash and cash equivalents $ 258.0 $ 166.8 $ 166.5 $ 200.3
Receivables, net of allowance for doubtful accounts 365.9 430.6    
Inventories 298.4 321.9    
Prepaid expenses and other 59.7 89.7    
Deferred income taxes   28.0    
Current assets of discontinued operations 8.0 68.2    
Total current assets 990.0 1,105.2    
Property, plant and equipment, net 1,617.6 1,636.1    
Goodwill 852.1 1,741.0    
Customer relationships, net 950.3 1,024.5    
Other intangible assets, net 63.4 68.1    
Non-current assets of discontinued operations   29.6    
Other assets, net 66.0 51.5    
Total assets 4,539.4 5,656.0 5,857.1  
Liabilities and Equity:        
Current portion of long-term debt 2.5 2.8    
Accounts payable 247.7 264.6    
Interest payable 15.4 15.2    
Income taxes payable 2.2 3.1    
Accrued compensation 43.0 33.3    
Other accrued liabilities 97.0 132.5    
Current liabilities of discontinued operations 8.3 32.6    
Total current liabilities 416.1 484.1    
Long-term debt, excluding the current portion of long-term debt 1,364.5 1,309.5    
Lease financing obligation 79.6 94.2    
Deferred income taxes 683.0 767.5    
Pension and other post-retirement benefits 202.8 250.5    
Non-current liabilities of discontinued operations   3.8    
Other non-current liabilities 140.3 157.4    
Total liabilities 2,886.3 3,067.0    
Equity:        
Total Axiall stockholders' equity 1,578.3 2,481.1    
Noncontrolling interest 74.8 107.9    
Total equity 1,653.1 2,589.0 2,728.3 603.5
Total liabilities and equity 4,539.4 5,656.0    
Eliminations [Member]        
Assets:        
Receivables, net of allowance for doubtful accounts (100.2) (261.1)    
Prepaid expenses and other (0.4)      
Total current assets (100.6) (261.1)    
Long-term receivables-affiliates (900.0) (1,292.9)    
Investment in subsidiaries (1,700.0) (1,973.2)    
Total assets (2,700.6) (3,527.2)    
Liabilities and Equity:        
Accounts payable (100.2) (261.1)    
Income taxes payable (0.4)      
Total current liabilities (100.6) (261.1)    
Long-term payables-affiliates (900.0) (1,292.9)    
Other non-current liabilities (7.4) (77.1)    
Total liabilities (1,008.0) (1,631.1)    
Equity:        
Total Axiall stockholders' equity (1,692.6) (1,896.1)    
Total equity (1,692.6) (1,896.1)    
Total liabilities and equity (2,700.6) (3,527.2)    
Parent Company [Member] | Reportable Legal Entities [Member]        
Assets:        
Cash and cash equivalents 0.3      
Receivables, net of allowance for doubtful accounts 27.1 162.8    
Prepaid expenses and other 0.7 0.1    
Deferred income taxes   3.1    
Total current assets 28.1 166.0    
Property, plant and equipment, net 11.0 12.0    
Long-term receivables-affiliates 900.0 1,292.9    
Other assets, net 5.6 10.4    
Investment in subsidiaries 1,235.5 1,682.7    
Total assets 2,180.2 3,164.0    
Liabilities and Equity:        
Accounts payable 84.3 97.2    
Interest payable 3.2 3.0    
Accrued compensation 9.5      
Other accrued liabilities 13.6 14.3    
Total current liabilities 110.6 114.5    
Long-term debt, excluding the current portion of long-term debt 444.2 443.4    
Deferred income taxes 18.0 10.0    
Pension and other post-retirement benefits 3.6 4.4    
Other non-current liabilities 25.5 110.6    
Total liabilities 601.9 682.9    
Equity:        
Total Axiall stockholders' equity 1,578.3 2,481.1    
Total equity 1,578.3 2,481.1    
Total liabilities and equity 2,180.2 3,164.0    
Eagle Spinco Inc [Member] | Reportable Legal Entities [Member]        
Assets:        
Receivables, net of allowance for doubtful accounts 5.5      
Total current assets 5.5      
Other assets, net 1.7 0.7    
Investment in subsidiaries 1,833.3 2,831.2    
Total assets 1,840.5 2,831.9    
Liabilities and Equity:        
Current portion of long-term debt   2.8    
Accounts payable 27.0 178.6    
Interest payable 12.2 12.2    
Total current liabilities 39.2 193.6    
Long-term debt, excluding the current portion of long-term debt 678.4 866.1    
Long-term payables-affiliates 900.0 900.0    
Total liabilities 1,617.6 1,959.7    
Equity:        
Total Axiall stockholders' equity 222.9 872.2    
Total equity 222.9 872.2    
Total liabilities and equity 1,840.5 2,831.9    
Guarantor Subsidiaries Excluding Eagle Spinco Inc [Member] | Reportable Legal Entities [Member]        
Assets:        
Cash and cash equivalents 159.4 78.2 76.9 131.4
Receivables, net of allowance for doubtful accounts 384.4 473.3    
Inventories 224.4 225.2    
Prepaid expenses and other 56.2 83.0    
Deferred income taxes   24.9    
Current assets of discontinued operations 8.0 68.2    
Total current assets 832.4 952.8    
Property, plant and equipment, net 1,376.2 1,338.1    
Goodwill 707.8 1,493.7    
Customer relationships, net 823.1 877.9    
Other intangible assets, net 63.1 67.8    
Non-current assets of discontinued operations   29.6    
Other assets, net 56.2 31.6    
Investment in subsidiaries 464.5 290.5    
Total assets 4,323.3 5,082.0    
Liabilities and Equity:        
Current portion of long-term debt 2.5      
Accounts payable 215.3 218.8    
Income taxes payable 0.4 0.9    
Accrued compensation 23.9 25.0    
Other accrued liabilities 48.3 88.9    
Current liabilities of discontinued operations 8.3 32.6    
Total current liabilities 298.7 366.2    
Long-term debt, excluding the current portion of long-term debt 241.8      
Deferred income taxes 636.1 720.4    
Pension and other post-retirement benefits 189.9 235.7    
Non-current liabilities of discontinued operations   3.8    
Other non-current liabilities 113.3 114.9    
Total liabilities 1,479.8 1,441.0    
Equity:        
Total Axiall stockholders' equity 2,843.5 3,641.0    
Total equity 2,843.5 3,641.0    
Total liabilities and equity 4,323.3 5,082.0    
Guarantor Subsidiaries Including Eagle Spinco Inc [Member] | Reportable Legal Entities [Member]        
Assets:        
Cash and cash equivalents 159.4 78.2 76.9 131.4
Receivables, net of allowance for doubtful accounts 384.4 457.5    
Inventories 224.4 225.2    
Prepaid expenses and other 56.2 83.0    
Deferred income taxes   24.9    
Current assets of discontinued operations 8.0 68.2    
Total current assets 832.4 937.0    
Property, plant and equipment, net 1,376.2 1,338.1    
Goodwill 707.8 1,493.7    
Customer relationships, net 823.1 877.9    
Other intangible assets, net 63.1 67.8    
Non-current assets of discontinued operations   29.6    
Other assets, net 56.2 31.6    
Investment in subsidiaries 464.5 290.5    
Total assets 4,323.3 5,066.2    
Liabilities and Equity:        
Current portion of long-term debt 2.5 2.8    
Accounts payable 236.7 381.5    
Interest payable 12.2 12.2    
Income taxes payable 0.4 0.9    
Accrued compensation 23.9 25.0    
Other accrued liabilities 48.3 88.9    
Current liabilities of discontinued operations 8.3 32.6    
Total current liabilities 332.3 543.9    
Long-term debt, excluding the current portion of long-term debt 920.3 866.1    
Long-term payables-affiliates 900.0 900.0    
Deferred income taxes 634.4 719.8    
Pension and other post-retirement benefits 189.9 235.7    
Non-current liabilities of discontinued operations   3.8    
Other non-current liabilities 113.3 114.9    
Total liabilities 3,090.2 3,384.2    
Equity:        
Total Axiall stockholders' equity 1,233.1 1,682.0    
Total equity 1,233.1 1,682.0    
Total liabilities and equity 4,323.3 5,066.2    
Non-Guarantor Subsidiaries [Member] | Reportable Legal Entities [Member]        
Assets:        
Cash and cash equivalents 98.3 88.6 $ 89.6 $ 68.9
Receivables, net of allowance for doubtful accounts 54.6 71.4    
Inventories 74.0 96.7    
Prepaid expenses and other 3.2 6.6    
Total current assets 230.1 263.3    
Property, plant and equipment, net 230.4 286.0    
Goodwill 144.3 247.3    
Customer relationships, net 127.2 146.6    
Other intangible assets, net 0.3 0.3    
Other assets, net 4.2 9.5    
Total assets 736.5 953.0    
Liabilities and Equity:        
Accounts payable 26.9 47.0    
Income taxes payable 2.2 2.2    
Accrued compensation 9.6 8.3    
Other accrued liabilities 35.1 29.3    
Total current liabilities 73.8 86.8    
Long-term payables-affiliates   392.9    
Lease financing obligation 79.6 94.2    
Deferred income taxes 30.6 37.7    
Pension and other post-retirement benefits 9.3 10.4    
Other non-current liabilities 8.9 9.0    
Total liabilities 202.2 631.0    
Equity:        
Total Axiall stockholders' equity 459.5 214.1    
Noncontrolling interest 74.8 107.9    
Total equity 534.3 322.0    
Total liabilities and equity $ 736.5 $ 953.0