Quarterly report pursuant to Section 13 or 15(d)

Fair Value Measurements (Financial Assets Measured At Fair Value On A Recurring and Nonrecurring Basis) (Details)

v3.19.1
Fair Value Measurements (Financial Assets Measured At Fair Value On A Recurring and Nonrecurring Basis) (Details) - USD ($)
$ in Millions
May 04, 2019
May 05, 2018
Marketable equity and debt securities $ 110 $ 96
Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]    
Marketable equity and debt securities 31 25
Significant Observable Inputs (Level 2) [Member]    
Marketable equity and debt securities 79 71
Significant Unobservable Inputs (Level 3) [Member]    
Marketable equity and debt securities $ 0 $ 0