Debt And Lines Of Credit (Debt Extinguishment) (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2014		Dec. 31, 2013		Dec. 31, 2012
Extinguishment of Debt [Line Items]
Debt reductions	$ 1,625	[1]	$ 574	[1]	$ 1,272	[1]
Pre-tax early debt extinguishment costs	$ 276	[2]	$ 25	[2]	$ 48	[2]

[1] Reductions related to notes with interest rates ranging from 1.63% to 9.38% with original maturities from 2014 to 2041 for the years ended December 31, 2014, 2013 and 2012.

[2] Amounts are included in Restructuring and other charges in the accompanying consolidated statements of operations.