Earnings Per Share (Schedule Of Weighted-Average Number Of Shares Outstanding Used To Compute Earnings Per Share) (Details) (USD $) In Millions, except Per Share data, unless otherwise specified	3 Months Ended
	Mar. 31, 2014		Mar. 31, 2013
Earnings Per Share [Abstract]
Net earnings	$ 965		$ 1,106
Earnings available to participating securities	2		3
Net earnings available to common shareholders	$ 963		$ 1,103
Basic weighted average shares outstanding	745.0		763.3
Participating securities	1.6		2.1
Basic weighted average common shares outstanding	743.4		761.2
Basic weighted average shares outstanding	745.0		763.3
Dilutive potential common shares	9.1	[1]	5.4	[1]
Diluted weighted average shares outstanding	754.1		768.7
Participating securities	1.6		2.1
Diluted weighted average common shares outstanding	752.5		766.6
Net earnings per share, Basic	$ 1.30		$ 1.45
Net earnings per share, Diluted	$ 1.28		$ 1.44

[1] Diluted EPS includes any dilutive impact of stock options, restricted stock units, performance-based restricted stock units and performance awards.