Acres of land

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Amount of backstop of rights offering

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Business combination, commitment to purchase, price per share

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Disclosure on Geographic Areas, Revenue from External Customers Attributed to Foreign Countries, Percentage

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Fair value of equity investment in entity prior to acquisition of controlling interest

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Nnumber of Manufacturing Facilities

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Number of Distribution Centers

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- Definition

Number of Units of Residential Housing in Future Development

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No definition available.

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In a business combination achieved in stages, this element represents the amount of loss recognized by the entity as a result of remeasuring to fair value the equity interest in the acquiree it held before the business combination.

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- Definition

The number of real estate properties owned as of the balance sheet date.

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- Definition

Future minimum rental payments in aggregate as of the balance sheet date under operating leases.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 840
-SubTopic 20
-Section 50
-Paragraph 4
-Subparagraph (b)
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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 rental payments receivable within the second 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

The cash outflow associated with the acquisition of business during the period. The cash portion only of the acquisition price.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Investing Activities
-URI http://asc.fasb.org/extlink&oid=6516133

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 13
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=56944662&loc=d3e3213-108585

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The cash outflow associated with the acquisition of or advances to an entity that is related to it but not strictly controlled (for example, an unconsolidated subsidiary, affiliate, and joint venture or equity method investment) or the acquisition of an additional interest in a subsidiary (controlled entity).

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
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-Section 45
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The carrying amount, as of the date of the latest financial statement presented, of all assets that are pledged as collateral for the payment of the related debt obligation primarily arising from secured borrowings, repurchase agreements or other current or potential obligations, where the secured party does not have the right by contract or custom to sell or re-pledge the collateral and therefore are not reclassified and separately reported in the statement of financial position.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
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-Name Accounting Standards Codification
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-SubTopic 30
-Section 50
-Paragraph 1A
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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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The number of units or percentage investment held in the subsidiary by the limited liability company or limited partnership.

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 946
-SubTopic 320
-Section S99
-Paragraph 9
-URI http://asc.fasb.org/extlink&oid=50485924&loc=d3e611443-123010

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Operating Units Other Segments and Other Information (Details) $ / shares in Units, $ in Millions					12 Months Ended
	Jun. 08, 2015 USD ($)	Apr. 25, 2015 USD ($) $ / shares	Oct. 02, 2013	Oct. 02, 2013	Dec. 31, 2015 USD ($) real_estate_properties distribution_centers real_estate_property_units manufacturing_facilities	Dec. 31, 2014 USD ($)	Dec. 31, 2013 USD ($)
Segment Reporting Information [Line Items]
2016					$ 498
2017					447
2017					367
2018					259
2019					157
Thereafter					196
Operating Leases, Future Minimum Payments Receivable					1,924
Fair value of investment in Ferrous Resources prior to acquisition of a controlling interest					$ 36	$ 0	$ 0
Real Estate Segment [Member]
Segment Reporting Information [Line Items]
Number of Real Estate Properties \| real_estate_properties					15
Real estate assets pledged to collateralize mortgages					$ 27	$ 31
ARL [Member]
Segment Reporting Information [Line Items]
Percentage of equity ownership in subsidiary			75.00%		75.00%
ARL [Member] \| Railcar Segment [Member]
Segment Reporting Information [Line Items]
Percentage of equity ownership in subsidiary				75.00%
Ferrous Resources [Member]
Segment Reporting Information [Line Items]
Percentage of equity ownership in subsidiary	14.10%				77.20%
Payments to Acquire Interest in Subsidiaries and Affiliates					$ 29
Viskase [Member]
Segment Reporting Information [Line Items]
Percentage of equity ownership in subsidiary					73.30%
Number of manufacturing facilities \| manufacturing_facilities					9
Number of distribution centers \| distribution_centers					6
Percentage of revenues from foreign countries					70.00%
ARI [Member]
Segment Reporting Information [Line Items]
Percentage of equity ownership in subsidiary					59.80%
MASSACHUSETTS \| Real Estate Segment [Member]
Segment Reporting Information [Line Items]
Number of residential units for future development \| real_estate_property_units					239
FLORIDA \| Real Estate Segment [Member]
Segment Reporting Information [Line Items]
Number of residential units for future development \| real_estate_property_units					1,128
Las Vegas, Nevada [Member] [Member] \| Real Estate Segment [Member]
Segment Reporting Information [Line Items]
Acres of land					23
Ferrous Resources [Member]
Segment Reporting Information [Line Items]
Payments to Acquire Businesses, Gross	$ 180
Fair value of investment in Ferrous Resources prior to acquisition of a controlling interest	36
Business Combination, Step Acquisition, Equity Interest in Acquiree, Remeasurement Loss	$ 4
Ferrous Resources [Member] \| Mining Segment [Member]
Segment Reporting Information [Line Items]
Business combination, commitment to purchase, price per share \| $ / shares		$ 0.36
Amount of backstop of rights offering		$ 40