VARIABLE INTEREST ENTITIES (Details) (USD $)
In Millions, unless otherwise specified
 3 Months Ended 12 Months Ended
Mar. 31, 2014
Dec. 31, 2013
Dec. 31, 2012
Dec. 31, 2011
Mar. 31, 2014
Consolidated VIE's
item
Dec. 31, 2013
Consolidated VIE's
item
Dec. 31, 2012
Consolidated VIE's
Mar. 31, 2014
Rubicon LLC, Pacific Iron Products, Arabian Amines and Sasol Huntsman GmbH and Co. KG
Dec. 31, 2013
Rubicon LLC, Pacific Iron Products, Arabian Amines and Sasol Huntsman GmbH and Co. KG
Dec. 31, 2012
Rubicon LLC, Pacific Iron Products, Arabian Amines and Sasol Huntsman GmbH and Co. KG
Mar. 31, 2014
Sasol Huntsman GmbH and Co. KG
Mar. 31, 2011
Sasol Huntsman GmbH and Co. KG
Identification of variable interest entities through investments and transactions                        
Number of joint ventures         4 4            
Assets and liabilities of VIE                        
Current assets $ 4,453 $ 4,446 $ 4,192         $ 180 $ 147 $ 163    
Property, plant and equipment, net 3,735 [1] 3,759 [1],[2] 3,656 [2] 3,510 363 369 378 363 369 378    
Other noncurrent assets 467 [1] 458 [1],[2] 366 [2]   30 28 28 77 76 61    
Deferred income taxes 240 243 229         28 28 45    
Intangible assets, net 83 [1] 88 [1],[2] 70 [2]   16 17 19 16 17 19    
Goodwill 130 131 117         16 16 16    
Total assets 9,393 9,411 8,870 8,330       680 653 682    
Current liabilities 2,342 2,283 2,313         359 330 348    
Long-term debt 3,621 [1] 3,633 [1],[2] 3,414 [2]   59 64 77 65 72 82    
Deferred income taxes 282 303 170         9 9 8    
Other noncurrent liabilities 914 [1] 938 [1],[2] 1,157 [2]   43 45 101 43 45 102    
Total liabilities $ 7,871 $ 7,936 $ 7,653         $ 476 $ 456 $ 540    
Noncontrolling interest (as a percent) 100.00% 100.00%                 50.00% 50.00%
[1] At March 31, 2014 and December 31, 2013, respectively, $34 and $39 of cash and cash equivalents, $9 each of restricted cash, $47 and $41 of accounts and notes receivable (net), $64 and $54 of inventories, $4 and $3 of other current assets, $363 and $369 of property, plant and equipment (net), $16 and $17 of intangible assets (net), $30 and $28 of other noncurrent assets, $85 and $73 of accounts payable, $30 and $32 of accrued liabilities, $179 and $183 of current portion of debt, $59 and $64 of long-term debt, and $43 and $45 of other noncurrent liabilities from consolidated variable interest entities are included in the respective Balance Sheet captions above. See "Note 5. Variable Interest Entities."
[2] At December 31, 2013 and 2012, respectively, $39 and $28 of cash and cash equivalents, $9 each of restricted cash, $41 and $38 of accounts and notes receivable (net), $54 and $55 of inventories, $3 and nil of other current assets, $369 and $378 of property, plant and equipment (net), $17 and $19 of intangible assets (net), $28 each of other noncurrent assets, $73 and $76 of accounts payable, $32 and $26 of accrued liabilities, $183 and $193 of current portion of debt, $64 and $77 of long-term debt, and $45 and $101 of other noncurrent liabilities from consolidated variable interest entities are included in the respective Balance Sheet captions above. See "Note 7. Variable Interest Entities."