Business Organization and Summary of Significant Accounting Policies - Recently Issued Accounting Pronouncements (Details) - Scenario, Forecast - Subsequent Event $ in Millions	Feb. 03, 2019 USD ($)
Minimum
Item Effected [Line Items]
Operating lease liabilities	$ 800
Operating lease right of use assets	700
Maximum
Item Effected [Line Items]
Operating lease liabilities	900
Operating lease right of use assets	$ 800