Commitments and Contingent Liabilities (Accretion Of Future Funding Obligation) (Details) (USD $) In Millions, unless otherwise specified	9 Months Ended
	Sep. 30, 2014	Dec. 31, 2013
Commitments and Contingencies Disclosure [Line Items]
Total obligation	$ 1,028
Asbestos litigation reserve current	773	763
Asbestos litigation reserve noncurrent	255	245
Total	84
Asbestos Issue [Member]
Commitments and Contingencies Disclosure [Line Items]
Remainder of 2014	3
2015	14
2016-2023	67
Total	$ 84