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CONSOLIDATED STATEMENTS OF SHAREHOLDERS' EQUITY (USD $)
In Millions, unless otherwise specified
Total
Common Shares ($1 par value) [Member]
Paid-In Capital [Member]
(Accumulated Deficit) Retained Earnings [Member]
Accumulated Other Comprehensive Income [Member]
Noncontrolling Interest [Member]
Beginning balance at Dec. 31, 2011 $ 742 $ 348 $ 65 $ 38 $ 76 $ 215
Total comprehensive income (loss) (42)     (42) (15) 15
Shares issued   2 (2)      
Shares retired:            
Repurchased (8) (1) (7)      
Surrendered (non-cash) (8) (1) (7)      
Cash dividends declared (53)   (27) (26)    
Dividend payment to noncontrolling interest (40)         (40)
Stock-based compensation 28   28      
Ending balance at Jun. 30, 2012 619 348 50 (30) 61 190
Beginning balance at Dec. 31, 2012 534 349 16 (102) 59 212
Total comprehensive income (loss) 127     124 (12) 15
Shares issued    2 (2)      
Shares retired:            
Repurchased (35) (2) (11) (22)    
Surrendered (non-cash) (18)   (18)      
Cash dividends declared (54)   (14) (40)    
Dividend payment to noncontrolling interest (34)         (34)
Stock-based compensation 29   29      
Ending balance at Jun. 30, 2013 $ 549 $ 349    $ (40) $ 47 $ 193