Commitments and Contingent Liabilities (Accretion Of Future Funding Obligation) (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended			3 Months Ended
	Mar. 31, 2013	Mar. 31, 2014	Dec. 31, 2013	Mar. 31, 2014 Asbestos Issue [Member]
Commitments and Contingencies Disclosure [Line Items]
Total obligation	$ 1,018
Asbestos litigation reserve current		769	763
Asbestos litigation reserve noncurrent		249	245
Remainder of 2012				10
2013				14
2014-2023				67
Total	$ 91			$ 91