Net Earnings Per Share From Continuing Operations (Components Of Basic And Diluted Earnings Per Share) (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Numerator:
Net earnings from continuing operations	$ 6,347	$ 3,646	$ 2,432
MCPS dividends	(164)	(136)	(68)
Net earnings from continuing operations attributable to common stockholders for Basic EPS	6,183	3,510	2,364
Adjustment for interest on convertible debentures	0	1	2
Adjustment for MCPS dividends for dilutive MCPS	78	0	0
Net earnings from continuing operations attributable to common stockholders after assumed conversions for Diluted EPS	$ 6,261	$ 3,511	$ 2,366
Denominator:
Weighted average common shares outstanding used in Basic EPS	714.6	706.2	715.0
Assumed exercise of dilutive options and vesting of dilutive RSUs and PSUs	11.2	11.4	8.9
Assumed conversion of the convertible debentures	0.0	1.1	1.6
Weighted average MCPS converted shares	11.0	0.0	0.0
Weighted average common shares outstanding used in Diluted EPS	736.8	718.7	725.5
Net earnings per common share from continuing operations, basic	$ 8.65	$ 4.97	$ 3.31
Net earnings per common share from continuing operations, diluted	$ 8.50	$ 4.89	$ 3.26