Condensed Consolidated Statements Of Cash Flows (USD $) In Millions, unless otherwise specified	6 Months Ended
	Sep. 30, 2014		Sep. 30, 2013
OPERATING ACTIVITIES
Net income (loss)	$ 338		$ (51)
Adjustments to reconcile net income (loss) to net cash provided by (used in) operating activities:
Depreciation, amortization and accretion	112		112
Stock-based compensation	69		71
Acquisition-related contingent consideration	(2)		(37)
Change in assets and liabilities:
Receivables, net	(508)		(278)
Inventories	(11)		(15)
Other assets	138		8
Accounts payable	83		77
Accrued and other liabilities	173		(37)
Deferred income taxes, net	4		5
Deferred net revenue (online-enabled games)	(209)		(109)
Net cash provided by (used in) operating activities	187		(254)
INVESTING ACTIVITIES
Capital expenditures	(48)		(53)
Proceeds from maturities and sales of short-term investments	352		250
Purchase of short-term investments	(537)		(191)
Acquisition of subsidiaries, net of cash acquired	0		(5)
Net cash provided by (used in) investing activities	(233)		1
FINANCING ACTIVITIES
Proceeds from issuance of common stock	26		50
Excess tax benefit from stock-based compensation	14		0
Repurchase and retirement of common stock	(145)		0
Acquisition-related contingent consideration payment	0		(1)
Net cash provided by (used in) financing activities	(105)		49
Effect of foreign exchange on cash and cash equivalents	(7)		2
Decrease in cash and cash equivalents	(158)		(202)
Beginning cash and cash equivalents	1,782	[1]	1,292
Ending cash and cash equivalents	1,624		1,090
Supplemental cash flow information:
Cash paid (refunded) during the period for income taxes, net	(11)		15
Cash paid during the period for interest	$ 3		$ 3

[1] Derived from audited consolidated financial statements.