Adoption of Accounting Policies Adoption of Accounting Policies - Additional Information (Details) - USD ($) $ in Millions	12 Months Ended
Feb. 28, 2018	Mar. 01, 2018	Feb. 28, 2017
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Cumulative Impact of ASU 2016-16 Adoption	$ (3)
Investments with continuous unrealized losses	$ 9	$ 8	$ 0

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

No definition available.

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