Consolidated Statements of Cash Flows - USD ($) $ in Millions	12 Months Ended
	Feb. 28, 2021	Feb. 29, 2020	Feb. 28, 2019
Cash flows from operating activities
Net income (loss)	$ (1,104)	$ (152)	$ 93
Adjustments to reconcile net income (loss) to net cash provided by operating activities:
Amortization	198	212	149
Deferred income taxes	(3)	0	(25)
Stock-based compensation	44	63	67
Impairment of goodwill	594	22	0
Impairment of Long-Lived Assets Held-for-use	43	10	0
Non-cash consideration received from contracts with customers	0	(8)	(46)
Debentures fair value adjustment	372	(66)	(117)
Other long-term liabilities	(3)	2	(12)
Operating leases	(4)	(9)	0
Other	1	10	6
Net changes in working capital items
Accounts receivable, net of allowance	29	18	(9)
Other receivables	(11)	5	52
Income taxes receivable	(4)	3	17
Other assets	55	(35)	(1)
Accounts payable	(11)	(17)	(15)
Accrued liabilities	(20)	(15)	(21)
Income taxes payable	(15)	1	(2)
Deferred revenue	(79)	(18)	(36)
Net cash provided by operating activities	82	26	100
Cash flows from investing activities
Acquisition of long-term investments	(5)	(1)	(2)
Proceeds on sale or maturity of long-term investments	0	19	2
Acquisition of property, plant and equipment	(8)	(12)	(17)
Proceeds on sale of property, plant and equipment	0	0	1
Acquisition of intangible assets	(36)	(32)	(32)
Business acquisitions, net of cash acquired			(1,402)
Change in consideration for business acquisition	0	1
Acquisition of restricted short-term investments	(24)	0	0
Acquisition of short-term investments	(1,039)	(1,180)	(2,895)
Proceeds on sale or maturity of short-term investments	1,047	1,017	3,970
Net cash used in investing activities	(65)	(188)	(375)
Cash flows from financing activities
Issuance of common shares	19	9	5
Finance Lease, Principal Payments	(1)	(2)	0
Repurchase of 3.75% Debentures	(610)	0	0
Issuance of 1.75% Debentures	365	0	0
Net cash provided by (used in) financing activities	(227)	7	5
Effect of foreign exchange gain (loss) on cash and cash equivalents	2	(1)	(3)
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, Period Increase (Decrease), Including Exchange Rate Effect	(208)	(156)	(273)
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, beginning of period	426	582	855
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, end of period	$ 218	$ 426	$ 582