Taxes (Schedule of Deferred Tax Classification in the Balance Sheet) (Details) - USD ($) $ in Millions	Jan. 31, 2023	Jan. 31, 2022
Liabilities:
Net deferred tax liabilities	$ 5,766	$ 5,444
Other long-term assets
Assets:
Other long-term assets	1,503	1,473
Deferred income taxes and other
Liabilities:
Net deferred tax liabilities	$ 7,269	$ 6,917

Amount, after deferred tax asset, of deferred tax liability attributable to taxable differences without jurisdictional netting.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section 45
-Paragraph 6
-URI https://asc.fasb.org/extlink&oid=123427490&loc=d3e31931-109318

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section 50
-Paragraph 2
-URI https://asc.fasb.org/extlink&oid=121826272&loc=d3e32537-109319

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