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Income Taxes	3 Months Ended
Income Taxes	Feb. 29, 2020
Income Tax Disclosure [Abstract]
Income Taxes	Income Taxes Our effective tax rate is estimated based upon the effective tax rate expected to be applicable for the full year. Our effective tax rate for the three months ended February 29, 2020 was 1 percent, compared to negative 1 percent for the three months ended February 28, 2019. The low 2020 tax rate is primarily due to excess tax benefits on stock-based compensation of approximately $64 million and the tax-efficient divestiture of the A&D business line (U.K. share sales are exempt from tax) of approximately $29 million. The negative 2019 tax rate is primarily due to tax benefits associated with excess tax benefits on stock-based compensation of approximately $12 million and change in partnership basis related to intangible assets of approximately $7 million.