Commitments and Contingencies (Impact of Legal Expenses Paid or Incurred to Date and Settlements Paid or Deemed Final) (Details) (USD $) In Millions, unless otherwise specified	11 Months Ended
	Dec. 31, 2014
Loss Contingencies [Line Items]
Settlements paid	$ 3
Legal expenses incurred and/or paid during the year ended December 31, 2014	21
Ending balance	24
Deductible [Member]
Loss Contingencies [Line Items]
Legal expenses incurred and/or paid during the year ended December 31, 2014	18
Ending balance	18
Reduction to Amount Owed to CVR Holders at 90% [Member]
Loss Contingencies [Line Items]
Settlements paid	3
Legal expenses incurred and/or paid during the year ended December 31, 2014	3
Ending balance	$ 6