Income Taxes - Additional Information (Details) - USD ($) $ in Millions	Feb. 28, 2021	Feb. 29, 2020
Income Tax Disclosure [Abstract]
Unrecognized income tax benefit will decrease in the next twelve months	$ 0
Unrecognized tax benefits netted against deferred income taxes	22
Unrecognized tax benefits included within taxes payable	2
Accrued interest	3	$ 4
Unrecognized Tax Benefits, Income Tax Penalties Accrued	$ 0	$ 0

Unrecognized tax benefits included within taxes payable

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- Definition

Unrecognized tax benefits netted against deferred income taxes

+ References

No definition available.

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- References

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- Definition

Amount of increase reasonably possible in the next twelve months for the unrecognized tax benefit.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section 50
-Paragraph 15
-Subparagraph (d)(3)
-URI http://asc.fasb.org/extlink&oid=84230637&loc=d3e32718-109319

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- Definition

Amount of statutory penalties accrued for a tax position claimed or expected to be claimed by the entity, in its tax return.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section 50
-Paragraph 15
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=84230637&loc=d3e32718-109319

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- Definition

Amount of interest expense accrued for an underpayment of income taxes.

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