Earnings Per Share (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	3 Months Ended
May 04, 2018	May 05, 2017
Basic earnings per common share:
Net earnings	$ 988	$ 602
Less: Net earnings allocable to participating securities	(3)	(2)
Net earnings allocable to common shares, basic	$ 985	$ 600
Weighted-average common shares outstanding	825	857
Basic earnings per common share	$ 1.19	$ 0.70
Diluted earnings per common share:
Net earnings	$ 988	$ 602
Less: Net earnings allocable to participating securities	(3)	(2)
Net earnings allocable to common shares, diluted	$ 985	$ 600
Weighted-average common shares outstanding	825	857
Dilutive effect of non-participating share-based awards	1	1
Weighted-average common shares, as adjusted	826	858
Diluted earnings per common share	$ 1.19	$ 0.70

The amount of net income (loss) for the period per each share of common stock or unit outstanding during the reporting period.

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The amount of net income (loss) for the period available to each share of common stock or common unit outstanding during the reporting period and to each share or unit that would have been outstanding assuming the issuance of common shares or units for all dilutive potential common shares or units outstanding during the reporting period.

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The portion of profit or loss for the period, net of income taxes, which is attributable to the parent.

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Amount, after deduction of tax, noncontrolling interests, dividends on preferred stock and participating securities; of income (loss) available to common shareholders.

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Amount, after deduction of tax, noncontrolling interests, dividends on preferred stock and participating securities, and addition from assumption of issuance of common shares for dilutive potential common shares; of income (loss) available to common shareholders.

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Amount of earnings (loss) distributed and earnings (loss) allocated to participating securities for the diluted earnings (loss) per share or per unit calculation under the two-class method.

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The sum of dilutive potential common shares or units used in the calculation of the diluted per-share or per-unit computation.

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