Condensed Consolidated Statements Of Cash Flows - USD ($) $ in Millions	9 Months Ended
	Dec. 31, 2017		Dec. 31, 2016
OPERATING ACTIVITIES
Net income (loss)	$ 436		$ 401
Adjustments to reconcile net income to net cash provided by (used in) operating activities:
Depreciation, amortization and accretion	97		140
Stock-based compensation	173		144
Change in assets and liabilities:
Receivables, net	(527)		(367)
Other assets	79		40
Accounts payable	16		(6)
Accrued and other liabilities	265		276
Deferred income taxes, net	130		0
Deferred net revenue (online-enabled games)	408		513
Net cash provided by operating activities	1,077		1,141
INVESTING ACTIVITIES
Capital expenditures	(87)		(94)
Proceeds from maturities and sales of short-term investments	1,656		968
Purchase of short-term investments	(2,012)		(1,372)
Acquisition, net of cash acquired	(150)		0
Net cash used in investing activities	(593)		(498)
FINANCING ACTIVITIES
Payment of convertible notes	0		(163)
Proceeds from issuance of common stock	57		33
Cash paid to taxing authorities for shares withheld from employees	(112)		(112)
Repurchase and retirement of common stock	(453)		(383)
Net cash used in financing activities	(508)		(625)
Effect of foreign exchange on cash and cash equivalents	25		(28)
Increase (decrease) in cash and cash equivalents	1		(10)
Beginning cash and cash equivalents	2,565	[1]	2,493
Ending cash and cash equivalents	2,566		2,483
Supplemental cash flow information:
Cash paid during the period for income taxes, net	46		51
Cash paid during the period for interest	21		23
Non-cash Investing activities
Change in accrued capital expenditures	$ (13)		$ (16)

[1] Derived from audited Consolidated Financial Statements.