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Property, Plant and Equipment - Property, Plant and Equipment (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017
Property, Plant and Equipment [Line Items]
Property, plant and equipment Gross	$ 5,484	$ 5,561
Less: Accumulated Depreciation	(2,687)	(2,559)
Property, plant and equipment, net	2,797	3,002
Land [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment Gross	227	252
Building Improvements [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment Gross	$ 1,271	1,340
Estimated Useful Lives	5-35 Years
Operating Equipment [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment Gross	$ 3,140	3,169
Estimated Useful Lives	3-15 Years
Rental Equipment [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment Gross	$ 597	581
Estimated Useful Lives	3-12 Years
Capital Leases [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment Gross	$ 249	$ 219
Estimated Useful Lives	20-24 Years

X

- Definition

Amount of accumulated depreciation, depletion and amortization for physical assets used in the normal conduct of business to produce goods and services.

+ References

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-Publisher FASB
-Name Accounting Standards Codification
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-SubTopic 10
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- Definition

Describes the periods of time over which an entity anticipates to receive utility from its property, plant and equipment (that is, the periods of time over which an entity allocates the initial cost of its property, plant and equipment).

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- Definition

Amount before accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures.

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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 depreciation, depletion and amortization of physical assets used in the normal conduct of business to produce goods and services and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures.

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