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, 2019	Mar. 31, 2018
Earnings Per Share [Abstract]
Net earnings		$ 2,149	$ 2,477
Undistributed Earnings (Loss) Allocated to Participating Securities, Basic		2	3
Net earnings available to common shareholders		$ 2,147	$ 2,474
Basic weighted average shares outstanding		567.7	590.8
Participating securities		0.6	0.7
Basic weighted average common shares outstanding		567.1	590.1
Basic weighted average shares outstanding		567.7	590.8
Dilutive potential common shares	[1]	4.7	6.4
Diluted weighted average shares outstanding		572.4	597.2
Participating securities		0.6	0.7
Diluted weighted average common shares outstanding		571.8	596.5
Income (Loss) from Continuing Operations, Per Basic Share		$ 3.79	$ 4.19
Earnings Per Share, Basic		3.79	4.19
Income (Loss) from Continuing Operations, Per Diluted Share		$ 3.75	$ 4.15

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