CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME - USD ($) $ in Millions	12 Months Ended
Jan. 03, 2020	Dec. 28, 2018	Dec. 29, 2017
Statement of Comprehensive Income [Abstract]
Net income	$ 670	$ 582	$ 364
Foreign currency translation adjustments	8	(61)	24
Unrecognized (loss) gain on derivative instruments	(47)	(10)
Unrecognized (loss) gain on derivative instruments			4
Pension adjustments	(1)	(1)	9
Total other comprehensive (loss) income, net of taxes	(40)	(72)	37
Comprehensive income	630	510	401
Less: comprehensive income (loss) attributable to non-controlling interest	3	1	(2)
Comprehensive income attributable to Leidos common stockholders	$ 627	$ 509	$ 403

Amount after tax of increase (decrease) in equity from transactions and other events and circumstances from net income and other comprehensive income, attributable to parent entity. Excludes changes in equity resulting from investments by owners and distributions to owners.

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