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Taxes (Tables)

12 Months Ended

Jan. 31, 2018

Income Tax Disclosure [Abstract]

Schedule of income before income taxes

The components of income before income taxes are as follows:

	Fiscal Years Ended January 31,
(Amounts in millions)	2018				2017				2016
U.S.	$	10,722			$	15,680			$	16,685
Non-U.S.	4,401				4,817				4,953
Total income before income taxes	$	15,123			$	20,497			$	21,638

Schedule of income tax provision

A summary of the provision for income taxes is as follows:

	Fiscal Years Ended January 31,
(Amounts in millions)	2018				2017				2016
Current:
U.S. federal	$	2,998			$	3,454			$	5,562
U.S. state and local	405				495				622
International	1,377				1,510				1,400
Total current tax provision	4,780				5,459				7,584
Deferred:
U.S. federal	(22		)		1,054				(704		)
U.S. state and local	(12		)		51				(106		)
International	(146		)		(360		)		(216		)
Total deferred tax expense (benefit)	(180		)		745				(1,026		)
Total provision for income taxes	$	4,600			$	6,204			$	6,558

Schedule of income tax rate

A reconciliation of the significant differences between the U.S. statutory tax rate and the effective income tax rate on pretax income from continuing operations is as follows:

	Fiscal Years Ended January 31,
	2018			2017			2016
U.S. statutory tax rate	33.8	%		35.0	%		35.0	%
U.S. state income taxes, net of federal income tax benefit	1.8	%		1.7	%		1.8	%
Impact of the Tax Act:
One-time transition tax	12.3	%		—	%		—	%
Deferred tax effects	(14.1	)%		—	%		—	%
Income taxed outside the U.S.	(4.1	)%		(4.5	)%		(4.0	)%
Net impact of repatriated international earnings	(0.1	)%		(1.0	)%		0.1	%
Other, net	0.8	%		(0.9	)%		(2.6	)%
Effective income tax rate	30.4	%		30.3	%		30.3	%

Schedule of deferred tax balances

The significant components of the Company's deferred tax account balances are as follows:

		January 31,
(Amounts in millions)		2018				2017
Deferred tax assets:
Loss and tax credit carryforwards		$	1,989			$	3,633
Accrued liabilities		2,482				3,437
Share-based compensation		217				309
Other		1,251				1,474
Total deferred tax assets		5,939				8,853
Valuation allowances		(1,843		)		(1,494		)
Deferred tax assets, net of valuation allowance		4,096				7,359
Deferred tax liabilities:
Property and equipment		3,954				6,435
Inventories		1,153				1,808
Other		941				1,884
Total deferred tax liabilities		6,048				10,127
Net deferred tax liabilities		$	1,952			$	2,768

Schedule of deferred tax classification in the balance sheet

The deferred taxes noted above are classified as follows in the Company's Consolidated Balance Sheets:

		January 31,
(Amounts in millions)		2018				2017
Balance Sheet classification
Assets:
Other assets and deferred charges		$	1,879			$	1,565
Liabilities:
Deferred income taxes and other		3,831				4,333
Net deferred tax liabilities		$	1,952			$	2,768

Reconciliation of unrecognized tax benefits from continuing operations

A reconciliation of unrecognized tax benefits from continuing operations is as follows:

	Fiscal Years Ended January 31,
(Amounts in millions)	2018				2017				2016
Unrecognized tax benefits, beginning of year	$	1,050			$	607			$	838
Increases related to prior year tax positions	130				388				164
Decreases related to prior year tax positions	(254		)		(32		)		(446		)
Increases related to current year tax positions	122				145				119
Settlements during the period	(23		)		(46		)		(25		)
Lapse in statutes of limitations	(15		)		(12		)		(43		)
Unrecognized tax benefits, end of year	$	1,010			$	1,050			$	607

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Tabular disclosure of the components of income tax expense attributable to continuing operations for each year presented including, but not limited to: current tax expense (benefit), deferred tax expense (benefit), investment tax credits, government grants, the benefits of operating loss carryforwards, tax expense that results from allocating certain tax benefits either directly to contributed capital or to reduce goodwill or other noncurrent intangible assets of an acquired entity, adjustments of a deferred tax liability or asset for enacted changes in tax laws or rates or a change in the tax status of the entity, and adjustments of the beginning-of-the-year balances of a valuation allowance because of a change in circumstances that causes a change in judgment about the realizability of the related deferred tax asset in future years.

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-Publisher FASB
-Name Accounting Standards Codification
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Tabular disclosure of the components of net deferred tax asset or liability recognized in an entity's statement of financial position, including the following: the total of all deferred tax liabilities, the total of all deferred tax assets, the total valuation allowance recognized for deferred tax assets.

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Tabular disclosure of the reconciliation using percentage or dollar amounts of the reported amount of income tax expense attributable to continuing operations for the year to the amount of income tax expense that would result from applying domestic federal statutory tax rates to pretax income from continuing operations.

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Tabular disclosure of income before income tax between domestic and foreign jurisdictions.

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Tabular disclosure for tax positions taken in the tax returns filed or to be filed for which it is more likely than not that the tax position will not be sustained upon examination by taxing authorities and other income tax contingencies. Includes, but is not limited to, interest and penalties, reconciliation of unrecognized tax benefits, unrecognized tax benefits that would affect the effective tax rate, tax years that remain subject to examination by tax jurisdictions, and information about positions for which it is reasonably possible that amounts unrecognized will significantly change within 12 months.

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Schedule of Deferred Taxes Classification in Consolidated Balance Sheets [Text Block]

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