Organization and Summary of Significant Accounting Policies - Additional Information (Details) - USD ($) $ in Millions	Mar. 31, 2017	Jan. 01, 2017	Dec. 31, 2016
New Accounting Pronouncement, Early Adoption [Line Items]
Impact to Other current assets	$ 98		$ 78
Impact to Other noncurrent assets	$ 60		$ 226
Impact to Retained earnings		$ (179)
New Accounting Pronouncement, Early Adoption, Effect [Member]
New Accounting Pronouncement, Early Adoption [Line Items]
Impact to Other current assets		(10)
Impact to Other noncurrent assets		(169)
Impact to Retained earnings		$ (179)