Earnings Per Share (Schedule Of Weighted-Average Number Of Shares Outstanding Used To Compute Earnings Per Share) (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions		3 Months Ended
		Mar. 31, 2017	Mar. 31, 2016
Earnings Per Share [Abstract]
Net earnings		$ 1,451	$ 1,219
Undistributed Earnings (Loss) Allocated to Participating Securities, Basic		2	2
Net earnings available to common shareholders		$ 1,449	$ 1,217
Basic weighted average shares outstanding		614.4	659.6
Participating securities		0.8	1.0
Basic weighted average common shares outstanding		613.6	658.6
Basic weighted average shares outstanding		614.4	659.6
Dilutive potential common shares	[1]	6.8	6.2
Diluted weighted average shares outstanding		621.2	665.8
Participating securities		0.8	1.0
Diluted weighted average common shares outstanding		620.4	664.8
Income (Loss) from Continuing Operations, Per Basic Share		$ 2.36	$ 1.85
Income (Loss) from Continuing Operations, Per Diluted Share		$ 2.34	$ 1.83

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