Condensed Consolidated Statements Of Cash Flows - USD ($) $ in Millions	9 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
OPERATING ACTIVITIES
Net income (loss)	$ 761	$ 2,621
Adjustments to reconcile net income to net cash provided by (used in) operating activities:
Depreciation, amortization and accretion	123	111
Stock-based compensation	326	256
Change in assets and liabilities:
Receivables, net	(309)	(176)
Other assets	(28)	76
Accounts payable	29	(33)
Accrued and other liabilities	245	264
Deferred income taxes, net	(18)	(1,793)
Deferred net revenue (online-enabled games)	434	(27)
Net cash provided by operating activities	1,563	1,299
INVESTING ACTIVITIES
Capital expenditures	(93)	(100)
Proceeds from maturities and sales of short-term investments	2,088	1,375
Purchase of short-term investments	(2,056)	(2,621)
Net cash used in investing activities	(61)	(1,346)
FINANCING ACTIVITIES
Proceeds from issuance of common stock	56	34
Payments of Dividends	(49)	0
Cash paid to taxing authorities for shares withheld from employees	(144)	(86)
Repurchase and retirement of common stock	(404)	(916)
Payment for Contingent Consideration Liability, Financing Activities	0	90
Net cash used in financing activities	(541)	(1,058)
Effect of foreign exchange on cash and cash equivalents	43	0
Increase (decrease) in cash and cash equivalents	1,004	(1,105)
Beginning cash and cash equivalents	3,768	4,708
Ending cash and cash equivalents	4,772	3,603
Supplemental cash flow information:
Cash paid during the period for income taxes, net	184	116
Cash paid during the period for interest	21	21
Non-cash Investing activities
Change in accrued capital expenditures	$ 1	$ (20)