Income Taxes (Details 2) - USD ($) $ in Millions	3 Months Ended		6 Months Ended		12 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015	Dec. 31, 2013
Income Tax [Line Items]
Income tax expense (benefit)	$ 40	$ 70	$ 113	$ 168
New VH
Income Tax [Line Items]
Net operating loss carryforwards					$ 760
Net operating loss indemnification amount					200
Net operating loss utilized - New VH NOL			196
Tax benefit related to stock repurchase			69
Tax credit reserve for repurchase of stock	69		69
Indemnification asset recorded in other assets	175		175
Indemnification asset recorded in treasury stock	$ 175		175
New VH | Expected
Income Tax [Line Items]
Income tax expense (benefit)					$ (266)
King
Income Tax [Line Items]
Uncertain tax positions assumed			$ 77