Cash, Cash Equivalents and Investments - Components of Cash, Cash Equivalents and Investments (Details) - USD ($) $ in Millions	12 Months Ended
	Feb. 28, 2021	Feb. 29, 2020	Feb. 28, 2019
Cash and Cash Equivalents [Line Items]
Cost Basis	$ 811	$ 998
Unrealized Gains	0	0
Unrealized Losses	(7)	8
Fair Value	804	990
Cash and Cash Equivalents	214	377
Short-term Investments	525	532
Long-term investments	37	32
Restricted Cash Equivalents	4	49	$ 34
Restricted Short-term Investments	24
Bank balances
Cash and Cash Equivalents [Line Items]
Cost Basis	165	100
Unrealized Gains	0	0
Unrealized Losses	0	0
Fair Value	165	100
Cash and Cash Equivalents	165	100
Short-term Investments	0	0
Long-term investments	0	0
Restricted Cash Equivalents	0	0
Restricted Short-term Investments	0
Other investments
Cash and Cash Equivalents [Line Items]
Cost Basis	37	32
Unrealized Gains	0	0
Unrealized Losses	0	0
Fair Value	37	32
Cash and Cash Equivalents	0	0
Short-term Investments	0	0
Long-term investments	37	32
Restricted Cash Equivalents	0	0
Restricted Short-term Investments	0
Bank Balances and Other Investments [Domain]
Cash and Cash Equivalents [Line Items]
Cost Basis	202	132
Unrealized Gains	0	0
Unrealized Losses	0	0
Fair Value	202	132
Cash and Cash Equivalents	165	100
Short-term Investments	0	0
Long-term investments	37	32
Restricted Cash Equivalents	0	0
Restricted Short-term Investments	0
Level 1: | Equity securities
Cash and Cash Equivalents [Line Items]
Cost Basis	10	10
Unrealized Gains	0	0
Unrealized Losses	7	8
Fair Value	3	2
Cash and Cash Equivalents	0	0
Short-term Investments	3	2
Long-term investments	0	0
Restricted Cash Equivalents	0	0
Restricted Short-term Investments	0
Level 2:
Cash and Cash Equivalents [Line Items]
Cost Basis	599	856
Unrealized Gains	0	0
Unrealized Losses	0	0
Fair Value	599	856
Cash and Cash Equivalents	49	277
Short-term Investments	522	530
Long-term investments	0	0
Restricted Cash Equivalents	4	49
Restricted Short-term Investments	24
Level 2: | Term deposits, certificates of deposits, and GIC's
Cash and Cash Equivalents [Line Items]
Cost Basis	138	118
Unrealized Gains	0	0
Unrealized Losses	0	0
Fair Value	138	118
Cash and Cash Equivalents	7	44
Short-term Investments	103	25
Long-term investments	0	0
Restricted Cash Equivalents	4	49
Restricted Short-term Investments	24
Level 2: | Bearer deposit notes
Cash and Cash Equivalents [Line Items]
Cost Basis	40	84
Unrealized Gains	0	0
Unrealized Losses	0	0
Fair Value	40	84
Cash and Cash Equivalents	0	30
Short-term Investments	40	54
Long-term investments	0	0
Restricted Cash Equivalents	0	0
Restricted Short-term Investments	0
Level 2: | Commercial paper
Cash and Cash Equivalents [Line Items]
Cost Basis	162	276
Unrealized Gains	0	0
Unrealized Losses	0	0
Fair Value	162	276
Cash and Cash Equivalents	15	108
Short-term Investments	147	168
Long-term investments	0	0
Restricted Cash Equivalents	0	0
Restricted Short-term Investments	0
Level 2: | Non-U.S. promissory notes
Cash and Cash Equivalents [Line Items]
Cost Basis	55	133
Unrealized Gains	0	0
Unrealized Losses	0	0
Fair Value	55	133
Cash and Cash Equivalents	26	25
Short-term Investments	29	108
Long-term investments	0	0
Restricted Cash Equivalents	0	0
Restricted Short-term Investments	0
Level 2: | Non-U.S. government sponsored enterprise notes
Cash and Cash Equivalents [Line Items]
Cost Basis	154	144
Unrealized Gains	0	0
Unrealized Losses	0	0
Fair Value	154	144
Cash and Cash Equivalents	1	0
Short-term Investments	153	144
Long-term investments	0	0
Restricted Cash Equivalents	0	0
Restricted Short-term Investments	0
Level 2: | Non-U.S. treasury bills/notes
Cash and Cash Equivalents [Line Items]
Cost Basis	25	56
Unrealized Gains	0	0
Unrealized Losses	0	0
Fair Value	25	56
Cash and Cash Equivalents	0	25
Short-term Investments	25	31
Long-term investments	0	0
Restricted Cash Equivalents	0	0
Restricted Short-term Investments	0
Level 2: | U.S. treasury bills/notes
Cash and Cash Equivalents [Line Items]
Cost Basis		45
Unrealized Gains		0
Unrealized Losses		0
Fair Value		45
Cash and Cash Equivalents		45
Short-term Investments		0
Long-term investments		0
Restricted Cash Equivalents		$ 0
Level 2: | Corporate notes/bonds
Cash and Cash Equivalents [Line Items]
Cost Basis	25
Unrealized Gains	0
Unrealized Losses	0
Fair Value	25
Cash and Cash Equivalents	0
Short-term Investments	25
Long-term investments	0
Restricted Cash Equivalents	0
Restricted Short-term Investments	$ 0