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Condensed Consolidated Statements of Changes in Common Stockholders' Investment (Parenthetical) - USD ($) $ in Millions	3 Months Ended
	Aug. 31, 2019	Aug. 31, 2018
Statement Of Stockholders Equity [Abstract]
Cash dividends declared, per share	$ 1.30	$ 1.30
Other comprehensive income, tax (expense)/benefit	$ 9	$ 31
Purchase of treasury stock	20,000.00	2,600,000
Employee incentive plans and other, shares issued	300,000	300,000

X

- Definition

Aggregate dividends declared during the period for each share of common stock outstanding.

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Amount of tax expense (benefit) allocated to other comprehensive income (loss).

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Number of shares (or other type of equity) issued during the period as a result of any equity-based compensation plan other than an employee stock ownership plan (ESOP), net of any shares forfeited. Shares issued could result from the issuance of restricted stock, the exercise of stock options, stock issued under employee stock purchase plans, and/or other employee benefit plans.

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Number of shares that have been repurchased during the period and are being held in treasury.

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