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Acquisition Narrative (Details) (USD $) In Millions, unless otherwise specified | 12 Months Ended | 0 Months Ended | 12 Months Ended | 0 Months Ended | 1 Months Ended
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Dec. 31, 2013 | Dec. 31, 2012 | Dec. 31, 2011 | Oct. 02, 2013 American Entertainment Properties Corp. [Member] Railcar Segment [Member] | Oct. 02, 2013 ARL [Member] Railcar Segment [Member] | Dec. 31, 2013 New ARL [Member] [Member] | Feb. 24, 2014 New ARL [Member] [Member] Railcar Segment [Member] | Oct. 02, 2013 New ARL [Member] [Member] Railcar Segment [Member] | Feb. 28, 2014 New ARL [Member] [Member] Railcar Segment [Member] | Aug. 31, 2013 Lumiere [Member] Gaming Segment [Member]
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |  |
Amount paid for management contract between related parties |  |  |  | $ 21 |  |  |  |  |  |
Cash contribution to newly capitalized entity |  |  |  |  | 71 |  |  |  |  |
Note receivable contribution to newly capitalized entity |  |  |  |  | 171 |  |  |  |  |
Payments to Acquire Interest in Joint Venture | 279 | 0 | 0 | 279 |  |  |  |  |  |
Future planned contribution to newly capitalized entity, percentage |  |  |  | 100.00% |  |  |  |  |  |
Percentage of equity ownership in subsidiary |  |  |  |  |  | 75.00% |  | 75.00% |  |
Future debt expected to be incurred by new capitalized entity |  |  |  |  |  |  |  | 381 | 381 |
Future cash expected to be distributed by newly capitalized entity |  |  |  |  |  |  | 381 | 381 |  |
Business combination, commitment to purchase |  |  |  |  |  |  |  |  |  | $ 260

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- Definition The cash outflow associated with the investment in or advances to an entity in which the reporting entity shares control of the entity with another party or group. + References Reference 1: 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=31042434&loc=d3e3213-108585 + Details
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