Number of pending claims remaining after dismissal of the other claims pertaining to a loss contingency.

No definition available.

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Namespace Prefix:	ibm_
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- Definition

the number of officers or executives of the reporting entity named as defendants.

+ References

No definition available.

+ Details

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

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Data Type:	xbrli:stringItemType
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Period Type:	duration

- Definition

The value (monetary amount) of the award the plaintiff seeks in the legal matter.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 450
-SubTopic 20
-Section 50
-Paragraph 9
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=118942415&loc=d3e14557-108349

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 450
-SubTopic 20
-Section 50
-Paragraph 4
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=118942415&loc=d3e14435-108349

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 450
-SubTopic 20
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=118942415&loc=d3e14326-108349

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

The number of countries in which the entity operates as of balance sheet date.

+ References

No definition available.

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant

- Details

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- Details

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- Details

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Namespace Prefix:
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Commitments & Contingencies - Contingencies (Details) $ in Millions	1 Months Ended	12 Months Ended
	May 31, 2015 defendant	Dec. 31, 2019 USD ($) country	Oct. 30, 2017 claim
Brazil Tax Matters
Loss Contingencies
Damages sought, value \| $		$ 925
SCO v. IBM
Loss Contingencies
Number of remaining claims \| claim			1
Litigation Case In United States District Court regarding divesting Microelectronics business, alleging violations of the Employee Retirement Income Security Act
Loss Contingencies
Number of officers or executives named as defendants \| defendant	3
Minimum
Loss Contingencies
Clients' presence in number of countries \| country		175