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Investments - Maturities of Available-for-sale and Held-to-maturity Securities (Details)
$ in Millions
Nov. 26, 2017
USD ($)
Available-for-sale, Cost Basis  
Due in one year or less $ 177
Due after one year through five years 729
Due after five years 43
Available-for-sale, cost basis, total 949
Available-for-sale, Fair Value  
Due in one year or less 176
Due after one year through five years 723
Due after five years 43
Available-for-sale, recorded basis, total 942
Held-to-maturity  
Due in one year or less 254
Due after one year through five years 0
Due after five years 0
Held-to-maturity, cost basis, total $ 254