Basis of Presentation and Summary of Significant Accounting Policies (Tables)

3 Months Ended

Mar. 31, 2017

Accounting Policies [Abstract]

Schedule of Changes In Estimates On Contracts

Changes in estimates on contracts for the periods presented were as follows:

	Three Months Ended
	March 31, 2017		April 1, 2016
	(in millions, except per share amounts)
Net favorable impact to income from continuing operations before taxes	$	22	$	8
Impact on diluted EPS from continuing operations attributable to Leidos common stockholders	$	0.09	$	0.07

Schedule of Supplementary Cash Flow Information

Supplementary cash flow information, including non-cash activities, for the periods presented was as follows:

	Three Months Ended
	March 31, 2017		April 1, 2016
	(in millions)
Supplementary cash flow information:
Cash paid for interest	$	32	$	13
Cash paid for income taxes, net of refunds	1		17
Non-cash financing activity:
Capital lease obligation	6		—