Stock Incentive Plans (Tables)

6 Months Ended

Sep. 30, 2019

Share-based Payment Arrangement [Abstract]

Schedule of Share Based Compensation Shares Authorized Under Stock Option Plans

The Board has reserved for issuance shares of DXC common stock, par value $0.01 per share, under each of the plans as detailed below:

	As of September 30, 2019
	Reserved for issuance	Available for future grants
DXC Employee Equity Plan	34,200,000	19,790,522
DXC Director Equity Plan	230,000	33,451
DXC Share Purchase Plan	250,000	224,908
Total	34,680,000	20,048,881

Disclosure of Share Based Compensation Arrangements by Share Based Payment Award

Stock Options

	Number of Option Shares		Weighted Average Exercise Price		Weighted Average Remaining Contractual Term	Aggregate Intrinsic Value (in millions)
Outstanding as of March 31, 2019	2,318,768		$	30.40	4.80	$	79
Granted	—		$	—
Exercised	(301,909	)	$	32.20		$	7
Canceled/Forfeited	(618	)	$	48.60
Expired	(91,442	)	$	33.37
Outstanding as of September 30, 2019	1,924,799		$	29.97	4.90	$	8
Vested and expected to vest in the future as of September 30, 2019	1,924,648		$	29.97	4.90	$	8
Exercisable as of September 30, 2019	1,922,449		$	29.94	4.90	$	8

Restricted Stock

	Employee Equity Plan				Director Equity Plan
	Number of Shares		Weighted Average Grant Date Fair Value		Number of Shares		Weighted Average Grant Date Fair Value
Outstanding as of March 31, 2019	2,809,775		$	67.27	75,750		$	46.31
Granted	2,656,777		$	48.56	68,200		$	35.70
Settled	(668,412	)	$	49.70	(21,971	)	$	63.82
Canceled/Forfeited	(486,330	)	$	61.43	—		$	—
Outstanding as of September 30, 2019	4,311,810		$	59.13	121,979		$	37.23

Schedule of Employee Service Share-based Compensation, Allocation of Recognized Period Costs

Share-Based Compensation

	Three Months Ended				Six Months Ended
(in millions)	September 30, 2019		September 30, 2018		September 30, 2019		September 30, 2018
Total share-based compensation cost	$	30	$	19	$	48	$	41
Related income tax benefit	$	7	$	3	$	11	$	6
Total intrinsic value of options exercised	$	1	$	25	$	7	$	35
Tax benefits from exercised stock options and awards	$	1	$	14	$	10	$	19