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Income Taxes (Details 3) - USD ($)
$ in Millions
12 Months Ended
Oct. 11, 2013
Dec. 31, 2015
Dec. 31, 2014
Dec. 31, 2013
Income Tax [Line Items]        
Income before income tax expense   $ 1,121 $ 981 $ 1,319
Income tax expense   229 146 309
Net operating loss tax attribute received from Purchase Transaction   (63) (52) (16)
Return to provision adjustment   5    
Reserve established for NOL tax attribute received from Purchase Transaction   58 52  
NOL carryforwards, foreign   36    
Undistributed earnings of foreign subsidiaries   4,084    
Unrecognized tax benefits that would affect effective tax rate   529    
Accrued interest and penalties related to uncertain tax positions   41 18  
Interest expense related to uncertain tax positions   10 5 $ 2
Possible unrecorded benefit related to settlement of tax audits   18    
Federal        
Income Tax [Line Items]        
Tax credit carryforward   40    
State        
Income Tax [Line Items]        
Tax credit carryforward   119    
New VH        
Income Tax [Line Items]        
NOL carryforward $ 760      
NOL carryforward indemnification amount 200      
Net operating loss utilized - New VH NOL   180 $ 148  
Indemnification asset recorded in other assets   125    
Indemnification asset recorded in treasury stock   $ 125    
New VH | Expected        
Income Tax [Line Items]        
Income tax expense $ 266