Income Taxes (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended	12 Months Ended
	Mar. 31, 2014	Dec. 31, 2013
Material change to aggregate recorded liabilities for uncertain tax positions in the next twelve months
Effective Income Tax Rate Reconciliation, Percent	35.00%	28.50%
Significant Change in Unrecognized Tax Benefits is Reasonably Possible, Other Information	12 months
Net Operating Losses From Emergence	$ 670
US Federal Income Tax Deduction Upon Settlement of Warrant Held by Asbestos Trusts	490
US Federal Income Tax Deduction Upon Payment of Deferred Payment Obligations	1,580
Period Allowed for Carryforward of Operating Loss	20 years
Examination issues and settlements with U.S. federal, state, and foreign tax authorities
Material change to aggregate recorded liabilities for uncertain tax positions in the next twelve months
Decrease in unrecognized tax benefits during the next 12 months	$ 68