Investments, Trading Assets (Detail) - Debt Securities [Member] - USD ($) $ in Millions |
12 Months Ended | ||
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Dec. 31, 2016 |
Dec. 26, 2015 |
Dec. 27, 2014 |
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| Schedule Of Trading Securities And Other Trading Assets [Line Items] | |||
| Trading Securities, Change in Unrealized Holding Gain (Loss) | $ (295) | $ (152) | $ (530) |
| Unrealized Gain (Loss) on Derivatives | $ 300 | $ 137 | $ 525 |
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- Definition 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. No definition available.
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- Definition Amount of unrealized holding gain (loss) recognized in the income statement for investments in debt and equity securities and other forms of securities that provide ownership interests classified as trading. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition The net change in the difference between the fair value and the carrying value, or in the comparative fair values, of derivative instruments, including options, swaps, futures, and forward contracts, held at each balance sheet date, that was included in earnings for the period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Details
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