Income Taxes (Details 2) (USD $) In Millions, unless otherwise specified	3 Months Ended		6 Months Ended		0 Months Ended	6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013	Oct. 11, 2013 New VH	Jun. 30, 2014 New VH
Purchase Transaction [Line Items]
Net Operating Loss Carryforwards					$ 676
Potential Future Tax Benefit	56	106	139	240	(237)
Net Operating Loss Carryforward Indemnification Amount Obtained					200
Net operating loss utilized						147
Net Operating Loss tax attribute received from Purchase Transaction						52
Indemnification asset recorded in Other Assets						52
Indemnification asset recorded as a reduction to the consideration paid for the shares repurchased			$ 52			$ 52