For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition

Total amount received by an entity from a vendor under a cooperative advertising arrangement that has been offset against advertising expense.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 705
-SubTopic 20
-Section 25
-Paragraph 3
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- Definition

Useful life of finite-lived intangible assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Amount of foreign earnings repatriated from subsidiaries outside the country of domicile.

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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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Stated as a percentage, the estimated or actual value of the asset at the end of its useful life or when it is no longer serviceable (cannot be used for its original purpose) divided by its [historical] capitalized cost.

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Useful life of long lived, physical assets used in the normal conduct of business and not intended for resale, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Examples include, but not limited to, land, buildings, machinery and equipment, office equipment, furniture and fixtures, and computer equipment.

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Percentage of fair value of reporting unit in excess of carrying amount.

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Summary of Significant Accounting Policies (Details) - USD ($) $ in Millions	3 Months Ended	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018	Oct. 01, 2020	Oct. 01, 2019
Property, Plant and Equipment [Line Items]
Percentage of fair value in excess of carrying amount					22.00%	32.00%
Advertising reimbursements		$ 22	$ 49	$ 41
Foreign earnings repatriated	$ 135
Revenues \| Product concentration risk
Property, Plant and Equipment [Line Items]
Percentage of equipment rental revenue		84.00%
Revenues \| Product concentration risk \| Total equipment rentals
Property, Plant and Equipment [Line Items]
Percentage of equipment rental revenue		77.00%
Non-compete agreements
Property, Plant and Equipment [Line Items]
Finite lived intangible assets life		5 years
Trade names and associated trademarks
Property, Plant and Equipment [Line Items]
Finite lived intangible assets life		5 years
Reporting units excluding Pump Solutions
Property, Plant and Equipment [Line Items]
Percentage of fair value in excess of carrying amount					42.00%
Minimum \| Customer relationships
Property, Plant and Equipment [Line Items]
Finite lived intangible assets life		5 years
Minimum \| Rental equipment, net
Property, Plant and Equipment [Line Items]
Property, plant and equipment useful life		2 years
Property, plant and equipment salvage value	0.00%	0.00%
Minimum \| Property and Equipment
Property, Plant and Equipment [Line Items]
Property, plant and equipment useful life		2 years
Maximum \| Customer relationships
Property, Plant and Equipment [Line Items]
Finite lived intangible assets life		15 years
Maximum \| Rental equipment, net
Property, Plant and Equipment [Line Items]
Property, plant and equipment useful life		20 years
Property, plant and equipment salvage value	10.00%	10.00%
Maximum \| Property and Equipment
Property, Plant and Equipment [Line Items]
Property, plant and equipment useful life		39 years
BakerCorp
Property, Plant and Equipment [Line Items]
Percentage of fair value in excess of carrying amount						12.00%