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Goodwill and Other Intangible Assets (Intangible Assets) - Additional Information (Details) - USD ($) $ in Millions | 3 Months Ended | 12 Months Ended
--- | --- | ---
Mar. 31, 2018 | Dec. 31, 2017
Finite Lived Intangible Assets [Line Items] |  |
Goodwill | $ 1,430 | $ 1,430
Goodwill, Impairment Loss |  | 387
Customer Relations And Supply Agreements [Member] | Weighted Average [Member] |  |
Finite Lived Intangible Assets [Line Items] |  |
Remaining weighted-average life | 11 years |
Favorable leasehold arrangements, net [Member] | Weighted Average [Member] |  |
Finite Lived Intangible Assets [Line Items] |  |
Remaining weighted-average life | 14 years |
Noncompete Agreements | Weighted Average [Member] |  |
Finite Lived Intangible Assets [Line Items] |  |
Remaining weighted-average life | 13 years |
Deferred Loan Origination Costs | Weighted Average [Member] |  |
Finite Lived Intangible Assets [Line Items] |  |
Remaining weighted-average life | 2 years |
Retail Segment [Member] |  |
Finite Lived Intangible Assets [Line Items] |  |
Goodwill | $ 678 |
Goodwill, Impairment Loss |  | (102)
Liquor Licenses [Member] |  |
Finite Lived Intangible Assets [Line Items] |  |
Impairment of Intangible Assets (Excluding Goodwill) |  | 4
Contractual Rights [Member] |  |
Finite Lived Intangible Assets [Line Items] |  |
Impairment of Intangible Assets (Excluding Goodwill) |  | $ 13

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- Definition Remaining amortization period of finite-lived intangible assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References No definition available. + Details
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- Definition Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=35741047&loc=d3e13816-109267 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6388280&loc=d3e13770-109266 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 45 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=77989000&loc=SL49117168-202975 + Details
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- Definition Amount of loss from the write-down of an asset representing the future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 2 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=35741047&loc=d3e13854-109267 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6388280&loc=d3e13777-109266 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=98514028&loc=d3e3602-108585 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (e) -URI http://asc.fasb.org/extlink&oid=35741047&loc=d3e13816-109267 + Details
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