MERGER WITH THE PPG CHEMICALS BUSINESS (Details) (USD $)	3 Months Ended	0 Months Ended
	Mar. 31, 2013	Jan. 28, 2013 Merged Business
Merger with the PPG chemical business
Purchase price		$ 2,800,000,000
Value of shares of common stock issued for acquisition		1,800,000,000
Share price (in dollars per share)		$ 50.24
Debt assumed		967,000,000
Unaudited pro forma information
Net sales	1,168,900,000
Net loss attributable to Axiall	$ (8,900,000)
Loss per share attributable to Axiall - Basic (in dollars per share)	$ (0.13)
Loss per share attributable to Axiall - Diluted (in dollars per share)	$ (0.13)