Annual report pursuant to Section 13 and 15(d)

Other Comprehensive Earnings (loss) (Details)

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Other Comprehensive Earnings (loss) (Details) (USD $)
In Millions, unless otherwise specified
 12 Months Ended
Dec. 31, 2013
Dec. 31, 2012
Dec. 31, 2011
Dec. 31, 2010
Other Comprehensive Income (Loss), Unrealized Holding Gain (Loss) on Securities Arising During Period, before Tax $ 16 $ (5) $ (39)  
Other Comprehensive Income (Loss), Unrealized Holding Gain (Loss) on Securities Arising During Period, Tax (6) 2 15  
Other Comprehensive Income (Loss), Unrealized Holding Gain (Loss) on Securities Arising During Period, Net of Tax 10 (3) (24)  
Other Comprehensive Earnings (Loss), Share of AOCI of Equity Affiliates Before Tax     3  
Other Comprehensive Earnings (Loss), Share of AOCI of Equity Affiliates Tax     (1)  
Other Comprehensive Earnings (Loss), Share of AOCI of Equity Affiliates, Net of Tax     2  
Other Comprehensive Income (Loss), Reclassification Adjustment for Sale of Securities Included in Net Income, before Tax (40) (21)    
Other Comprehensive Income (Loss), Reclassification Adjustment for Sale of Securities Included in Net Income, Tax 15 8    
Other Comprehensive Income (Loss), Reclassification Adjustment for Sale of Securities Included in Net Income, Net of Tax (25) (13) 0  
other comprehensive income (loss), other before tax 6      
other comprehensive income (loss), other tax (2)      
other comprehensive income (loss), other net of tax 4      
Other comprehensive Income (loss) from discontinued operations Before Tax   (2) (5)  
Other comprehensive Income (loss) from discontinued operations Tax   1 2  
Other comprehensive Income (loss) from discontinued operations Net of Tax   (1) (3)  
Other Comprehensive Income (Loss), before Tax (18) (28) (41)  
Other Comprehensive Income (Loss), Tax 7 11 16  
Accumulated Other Comprehensive Income (Loss), Foreign Currency Translation Adjustment, Net of Tax 4 12 29 54
Other Comprehensive Income (Loss), Net of Tax (11) (17) (25)  
Equity impact from pro rata distribution to shareholders of a subsidiary (80)      
Accumulated Other Comprehensive Income (Loss) [Member]
        
Other Comprehensive Income (Loss), Net of Tax (11) (17) (25)  
Equity impact from pro rata distribution to shareholders of a subsidiary 3      
Accumulated Net Unrealized Investment Gain (Loss) [Member]
        
Accumulated Other Comprehensive Income (Loss), Foreign Currency Translation Adjustment, Net of Tax 5 20 36 60
Other Comprehensive Income (Loss), Net of Tax (15) (16) (24)  
Equity impact from pro rata distribution to shareholders of a subsidiary 0      
Accumulated other comprehensive income, other [Member]
        
Accumulated Other Comprehensive Income (Loss), Foreign Currency Translation Adjustment, Net of Tax (1) (5) (5) (7)
Other Comprehensive Income (Loss), Net of Tax 4 0 2  
Equity impact from pro rata distribution to shareholders of a subsidiary 0      
Segment, Discontinued Operations [Member]
        
Accumulated Other Comprehensive Income (Loss), Foreign Currency Translation Adjustment, Net of Tax 0 (3) (2) 1
Other Comprehensive Income (Loss), Net of Tax 0 (1) (3)  
Equity impact from pro rata distribution to shareholders of a subsidiary $ 3