Contingencies (Impact of Legal Expenses Paid or Incurred to Date and Settlements Paid or Deemed Final) (Details) (USD $) In Millions, unless otherwise specified	8 Months Ended
	Sep. 30, 2014
Loss Contingencies [Line Items]
Settlements paid	$ 3
Legal expenses incurred and/or paid during the nine months ended September 30, 2014	19
Ending balance	22
Deductible [Member]
Loss Contingencies [Line Items]
Legal expenses incurred and/or paid during the nine months ended September 30, 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 nine months ended September 30, 2014	1
Ending balance	$ 4