Goodwill, Control Premium, Percent

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- Definition

Goodwill, Impairment Percent

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- Definition

Intangible Assets, Gross (Including Goodwill)

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Weighted average amortization period of finite-lived intangible assets acquired either individually or as part of a group of assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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The aggregate expense charged against earnings to allocate the cost of intangible assets (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets. As a noncash expense, this element is added back to net income when calculating cash provided by or used in operations using the indirect method.

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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.

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Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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Amount of loss from the write-down of an asset representing the future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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Number of reporting units tested for impairment of goodwill. A reporting unit is an operating segment or one level below an operating segment.

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Goodwill, Customer Relationships and Other Intangible Assets - Additional Information (Details) $ in Millions			3 Months Ended			12 Months Ended
	Oct. 31, 2019 reporting_unit	Oct. 31, 2018 USD ($) reporting_unit	Mar. 31, 2019 USD ($)	Dec. 31, 2018 USD ($)	Mar. 31, 2018 USD ($)	Dec. 31, 2019 USD ($)	Dec. 31, 2018 USD ($)	Dec. 31, 2017 USD ($)	Jan. 31, 2019	Jan. 01, 2019
Finite-Lived Intangible Assets [Line Items]
Acquired finite-lived intangible assets, weighted average useful life						8 years
Amortization of intangible assets						$ 1,700	$ 1,800	$ 1,200
Intangible assets, gross						44,000
Goodwill impairment		$ 2,700	$ 6,500	$ 2,700	$ 2,700	6,506	2,726	0
Number of reporting units \| reporting_unit	8	5
Control premium, percent	44.70%	0.10%							4.10%	4.50%
Goodwill				28,031		$ 21,534	28,031	30,475
Consumer
Finite-Lived Intangible Assets [Line Items]
Goodwill, impairment percent	44.00%
Small and Medium Business
Finite-Lived Intangible Assets [Line Items]
Goodwill, impairment percent	41.00%
Enterprise
Finite-Lived Intangible Assets [Line Items]
Goodwill, impairment percent	53.00%
Wholesale
Finite-Lived Intangible Assets [Line Items]
Goodwill, impairment percent	46.00%
NA GAM
Finite-Lived Intangible Assets [Line Items]
Goodwill, impairment percent	55.00%
EMEA
Finite-Lived Intangible Assets [Line Items]
Goodwill, impairment percent	5.00%
LATAM
Finite-Lived Intangible Assets [Line Items]
Goodwill, impairment percent	63.00%
APAC
Finite-Lived Intangible Assets [Line Items]
Goodwill, impairment percent	38.00%
Business
Finite-Lived Intangible Assets [Line Items]
Goodwill impairment							0
Goodwill				$ 20,447			$ 20,447	$ 20,197
Customer relationships
Finite-Lived Intangible Assets [Line Items]
Acquired finite-lived intangible assets, weighted average useful life						9 years
Capitalized software
Finite-Lived Intangible Assets [Line Items]
Acquired finite-lived intangible assets, weighted average useful life						4 years
Tradenames and patents
Finite-Lived Intangible Assets [Line Items]
Acquired finite-lived intangible assets, weighted average useful life						3 years