CONSOLIDATED BALANCE SHEETS (Parenthetical) (USD $)
In Millions, except Share data, unless otherwise specified
Mar. 31, 2014
Dec. 31, 2013
Mar. 31, 2013
Dec. 31, 2012
Dec. 31, 2011
Dec. 31, 2010
CONSOLIDATED BALANCE SHEETS            
Accounts and notes receivable, allowance for doubtful accounts (in dollars) $ 41 $ 42   $ 47    
Accounts and notes receivable, pledged as collateral (in dollars) 876 521   520    
Members' equity, units issued (in units) 2,728 2,728   2,728    
Members' equity, units outstanding (in units) 2,728 2,728   2,728    
Variable Interest Entity            
Cash and cash equivalents 205 [1] 515 [1],[2] 215 210 [2] 231 561
Restricted cash 9 [1] 9 [1],[2]   9 [2]    
Accounts and notes receivable (net) 1,691 [1] 1,542 [1],[2]   1,534 [2]    
Inventories 1,911 [1] 1,741 [1],[2]   1,819 [2]    
Other current assets 202 [1] 200 [1],[2]   222 [2]    
Property, plant and equipment (net) 3,735 [1] 3,759 [1],[2]   3,656 [2] 3,510  
Intangible assets (net) 83 [1] 88 [1],[2]   70 [2]    
Other noncurrent assets 467 [1] 458 [1],[2]   366 [2]    
Accounts payable 1,144 [1] 1,067 [1],[2]   1,101 [2]    
Accrued liabilities 733 [1] 742 [1],[2]   723 [2]    
Current portion of debt 270 [1] 277 [1],[2]   288 [2]    
Long-term debt 3,621 [1] 3,633 [1],[2]   3,414 [2]    
Other noncurrent liabilities 914 [1] 938 [1],[2]   1,157 [2]    
Consolidated VIE's
            
Variable Interest Entity            
Cash and cash equivalents 34 39   28    
Restricted cash 9 9   9    
Accounts and notes receivable (net) 47 41   38    
Inventories 64 54   55    
Other current assets 4 3         
Property, plant and equipment (net) 363 369   378    
Intangible assets (net) 16 17   19    
Other noncurrent assets 30 28   28    
Accounts payable 85 73   76    
Accrued liabilities 30 32   26    
Current portion of debt 179 183   193    
Long-term debt 59 64   77    
Other noncurrent liabilities $ 43 $ 45   $ 101    
[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."