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Financial Instruments Tingyi (Details) $ in Millions	12 Months Ended
	Dec. 26, 2015 USD ($)
Equity Method Investments and Joint Ventures [Abstract]
indirect equity investment percentage	5.00%
indirect equity investment	$ 538
indirect equity investment percentage increase	20.00%

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[Table Text Block] for indirect equity investment [Table]

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indirect equity investment percentage

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indirect equity investment percentage increase

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