Organization and Summary of Significant Accounting Policies Accounting Standards Adoption 2016-02 (Details) - USD ($) $ in Millions	Dec. 31, 2019	Jan. 01, 2019
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Right-of-use assets, net	$ 668
Operating lease, liability	$ 725
Accounting Standards Update 2016-02 [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Right-of-use assets, net		$ 441
Operating lease, liability		$ 490