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Equity and Comprehensive Income - Additional Information - Dividends (Detail) - $ / shares | 3 Months Ended | 6 Months Ended
--- | --- | ---
Feb. 14, 2016 | Feb. 15, 2015 | Feb. 14, 2016 | Feb. 15, 2015
Class of Stock [Line Items] |  |  |  |
Dividends declared | $ 0.40 | $ 5.355 | $ 0.80 | $ 5.71
Dividend Rate |  |  |  |
Class of Stock [Line Items] |  |  |  |
Dividends declared | $ 0.40 | $ 0.355 |  |

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- Definition Aggregate dividends declared during the period for each share of common stock outstanding. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.3-04) -URI http://asc.fasb.org/extlink&oid=27012166&loc=d3e187085-122770 + Details
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