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

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 360
-SubTopic 10
-Section 50
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Reference 2: http://www.xbrl.org/2003/role/presentationRef
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- Definition

The amount of expense recognized in the current period that reflects the allocation of the cost of tangible assets over the assets' useful lives. Includes production and non-production related depreciation.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Future minimum rental payments in aggregate as of the balance sheet date under operating leases.

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-Name Accounting Standards Codification
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Future rental payments receivable within one year of the balance sheet date under an operating lease.

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Future rental payments receivable within the fifth year from the balance sheet date under an operating lease.

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Future rental payments receivable within the fourth year from the balance sheet date under an operating lease.

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Future rental payments receivable within the third year from the balance sheet date under an operating lease.

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Future minimum lease payments receivable under operating leases for periods greater than five years following the balance sheet date.

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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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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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Property, Plant and Equipment, Net (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	$ 14,481	$ 14,012
Less: Accumulated depreciation and amortization	(4,780)	(3,890)
Property, plant and equipment, net	9,701	10,122
Depreciation and amortization expense related to property, plant and equipment	898	917	$ 752
2018	184
2019	160
2020	118
2021	66
2022	42
Thereafter	92
Future minimum lease payments on operating leases	662
Land
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	876	944
Buildings and improvements
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	$ 3,249	3,050
Buildings and improvements \| Minimum
Property, Plant and Equipment [Line Items]
Property, plant and equipment, useful life (in years)	3 years
Buildings and improvements \| Maximum
Property, Plant and Equipment [Line Items]
Property, plant and equipment, useful life (in years)	40 years
Machinery, equipment and furniture
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	$ 8,324	7,538
Machinery, equipment and furniture \| Minimum
Property, Plant and Equipment [Line Items]
Property, plant and equipment, useful life (in years)	1 year
Machinery, equipment and furniture \| Maximum
Property, Plant and Equipment [Line Items]
Property, plant and equipment, useful life (in years)	30 years
Assets leased to others
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	$ 1,529	1,939
Less: Accumulated depreciation and amortization	(201)	(224)
Assets leased to others \| Railcars
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	1,100	1,500
Assets leased to others \| Real estate properties
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	$ 387	415
Assets leased to others \| Minimum
Property, Plant and Equipment [Line Items]
Property, plant and equipment, useful life (in years)	15 years
Assets leased to others \| Maximum
Property, Plant and Equipment [Line Items]
Property, plant and equipment, useful life (in years)	39 years
Construction in progress
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	$ 503	$ 541