Condensed Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Millions	Jul. 01, 2016	Jan. 01, 2016
Property, plant and equipment, accumulated depreciation and amortization	$ 266	$ 272
Preferred Stock, Par or Stated Value Per Share (dollar per share)	$ 0.0001	$ 0.0001
Preferred Stock, Shares Authorized	10,000,000	10,000,000
Preferred Stock, Shares Issued	0	0
Preferred Stock, Shares Outstanding	0	0
Common stock, par value per share (dollar per share)	$ 0.0001	$ 0.0001
Common stock, shares authorized	500,000,000	500,000,000
Common stock, shares issued	73,000,000	72,000,000
Common stock, shares outstanding	73,000,000	72,000,000
Leidos, Inc.
Property, plant and equipment, accumulated depreciation and amortization	$ 266	$ 272
Common stock, par value per share (dollar per share)	$ 0.01	$ 0.01
Common stock, shares authorized	10,000	10,000
Common stock, shares issued	5,000	5,000
Common stock, shares outstanding	5,000	5,000