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Cash, Cash Equivalents and Short-Term Investments (Details) - USD ($) $ in Thousands | Jun. 01, 2018 | Dec. 01, 2017
--- | --- | ---
Schedule of Available-for-sale Securities |  |
Amortized Cost | $ 6,370,252 | $ 5,831,289
Unrealized Gains | 650 | 2,705
Unrealized Losses | (36,838) | (14,220)
Estimated Fair Value, Total cash, cash equivalents and short-term investments | 6,334,064 | 5,819,774
Cash and cash equivalents |  |
Schedule of Available-for-sale Securities |  |
Amortized Cost | 2,987,984 | 2,306,072
Unrealized Gains | 3 | 0
Unrealized Losses | (1) | 0
Cash and Cash Equivalents, Fair Value Disclosure | 2,987,986 | 2,306,072
Cash |  |
Schedule of Available-for-sale Securities |  |
Amortized Cost | 345,475 | 280,488
Unrealized Gains | 0 | 0
Unrealized Losses | 0 | 0
Cash and Cash Equivalents, Fair Value Disclosure | 345,475 | 280,488
Cash equivalents |  |
Schedule of Available-for-sale Securities |  |
Amortized Cost | 2,642,509 | 2,025,584
Unrealized Gains | 3 | 0
Unrealized Losses | (1) | 0
Cash and Cash Equivalents, Fair Value Disclosure | 2,642,511 | 2,025,584
Cash equivalents | Corporate Bonds And Commercial Paper |  |
Schedule of Available-for-sale Securities |  |
Amortized Cost | 21,294 |
Unrealized Gains | 3 |
Unrealized Losses | (1) |
Cash and Cash Equivalents, Fair Value Disclosure | 21,296 |
Cash equivalents | Money Market Mutual Funds |  |
Schedule of Available-for-sale Securities |  |
Amortized Cost | 2,590,037 | 2,006,741
Unrealized Gains | 0 | 0
Unrealized Losses | 0 | 0
Cash and Cash Equivalents, Fair Value Disclosure | 2,590,037 | 2,006,741
Cash equivalents | Time deposits |  |
Schedule of Available-for-sale Securities |  |
Amortized Cost | 31,178 | 18,843
Unrealized Gains | 0 | 0
Unrealized Losses | 0 | 0
Cash and Cash Equivalents, Fair Value Disclosure | 31,178 | 18,843
Short-term fixed income securities |  |
Schedule of Available-for-sale Securities |  |
Amortized Cost | 3,382,268 | 3,525,217
Unrealized Gains | 647 | 2,705
Unrealized Losses | (36,837) | (14,220)
Estimated Fair Value, short-term investments | 3,346,078 | 3,513,702
Short-term fixed income securities | Asset-backed Securities |  |
Schedule of Available-for-sale Securities |  |
Amortized Cost | 84,710 | 98,403
Unrealized Gains | 0 | 1
Unrealized Losses | (823) | (403)
Estimated Fair Value, short-term investments | 83,887 | 98,001
Short-term fixed income securities | Corporate Debt Securities |  |
Schedule of Available-for-sale Securities |  |
Amortized Cost | 2,451,735 | 2,461,691
Unrealized Gains | 647 | 2,694
Unrealized Losses | (32,110) | (10,125)
Estimated Fair Value, short-term investments | 2,420,272 | 2,454,260
Short-term fixed income securities | Foreign Government Securities |  |
Schedule of Available-for-sale Securities |  |
Amortized Cost | 3,852 | 2,396
Unrealized Gains | 0 | 0
Unrealized Losses | (65) | (8)
Estimated Fair Value, short-term investments | 3,787 | 2,388
Short-term fixed income securities | Municipal Securities |  |
Schedule of Available-for-sale Securities |  |
Amortized Cost | 19,236 | 21,189
Unrealized Gains | 0 | 8
Unrealized Losses | (303) | (132)
Estimated Fair Value, short-term investments | 18,933 | 21,065
Short-term fixed income securities | U.S. Treasury Securities |  |
Schedule of Available-for-sale Securities |  |
Amortized Cost | 822,735 | 941,538
Unrealized Gains | 0 | 2
Unrealized Losses | (3,536) | (3,552)
Estimated Fair Value, short-term investments | $ 819,199 | $ 937,988

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- Definition Fair value portion of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. + References No definition available. + Details
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- Definition Cash includes currency on hand as well as demand deposits with banks or financial institutions. It also includes other kinds of accounts that have the general characteristics of demand deposits in that the customer may deposit additional funds at any time and effectively may withdraw funds at any time without prior notice or penalty. Cash equivalents, excluding items classified as marketable securities, include short-term, highly liquid Investments that are both readily convertible to known amounts of cash, and so near their maturity that they present minimal risk of changes in value because of changes in interest rates. Generally, only investments with original maturities of three months or less qualify under that definition. Original maturity means original maturity to the entity holding the investment. For example, both a three-month US Treasury bill and a three-year Treasury note purchased three months from maturity qualify as cash equivalents. However, a Treasury note purchased three years ago does not become a cash equivalent when its remaining maturity is three months. Short-term investments, exclusive of cash equivalents, generally consist of marketable securities intended to be sold within one year (or the normal operating cycle if longer) and may include trading securities, available-for-sale securities, or held-to-maturity securities (if maturing within one year), as applicable. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.1) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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