Cash, Cash Equivalents and Short-Term Investments (Details 2) (USD $) In Thousands, unless otherwise specified	Aug. 30, 2013
Amortized cost and Estimated Fair Value of Short-term fixed Income Securities [Abstract]
Due within one year, Amortized Cost	$ 572,921
Due between one and two years, Amortized Cost	812,070
Due between two and three years, Amortized Cost	681,816
Due after three years, Amortized Cost	277,896
Total, Amortized Cost	2,344,703
Due within one year, Estimated Fair value	573,977
Due between one and two years, Estimated Fair value	814,355
Due between two and three years, Estimated Fair value	680,980
Due after three years, Estimated Fair value	274,730
Total, Estimated Fair value	$ 2,344,042