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

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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.

+ References

No definition available.

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Amount of stock repurchase plan authorized.

+ References

No definition available.

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Amount remaining of a stock repurchase plan authorized.

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No definition available.

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Number of shares that have been repurchased during the period and have not been retired and are not held in treasury. Some state laws may govern the circumstances under which an entity may acquire its own stock and prescribe the accounting treatment therefore. This element is used when state law does not recognize treasury stock.

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Equity impact of the value of stock that has been repurchased during the period and has not been retired and is not held in treasury. Some state laws may mandate the circumstances under which an entity may acquire its own stock and prescribe the accounting treatment therefore. This element is used when state law does not recognize treasury stock.

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Shareholders' Equity (Narrative) (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	1 Months Ended	3 Months Ended
	Jun. 05, 2018	May 05, 2018	Apr. 29, 2017
Retained Earnings Adjustments [Line Items]
Shares repurchased (in shares)		0.3
Repurchase of common stock, amount		$ 13	$ 206
Remaining share repurchase capacity		401
Subsequent Event [Member]
Retained Earnings Adjustments [Line Items]
Quarterly dividend declared and paid in subsequent quarter	$ 0.37
2017 Program [Member]
Retained Earnings Adjustments [Line Items]
Share repurchase authorization		$ 500