Share Repuchase Table Footnotes, detail tags

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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.

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- Definition

Additional shares included in the calculation of diluted EPS as a result of the potentially dilutive effect of share based payment arrangements using the treasury stock method.

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- Definition

Amount of stock repurchase plan authorized.

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Amount remaining of a stock repurchase plan authorized.

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- Definition

Number of shares that have been repurchased and retired during the period.

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Total cost of shares repurchased divided by the total number of shares repurchased.

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Equity impact of the cost of common and preferred stock that were repurchased during the period. Recorded using the par value method.

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Earnings Per Share, Share Repurchases and Dividends on Common Stock (Unaudited) (Details 1) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	3 Months Ended		9 Months Ended		42 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Dec. 04, 2018	Sep. 16, 2015
Share Repurchase [Line Items]
Incremental Common Shares Attributable to Dilutive Effect of Share-based Payment Arrangements	0.8	0.8	0.7	0.9
September 2015 Share Repurchase Program Original Authorization
Share Repurchase [Line Items]
Amount Authorized							$ 4,000
Shares Retired					13.6
Average Cost Per Share					$ 248.91
Shares Repurchased			2.3	0.7
Share Repurchases - Notes to Table
Shares repurchased amount					$ 3,400
Amount remaining under authorization for share repurchases	$ 600		$ 600		$ 600
December 2018 Share Repurchase Original Authorization [Member]
Share Repurchase [Line Items]
Amount Authorized						$ 3,000
Shares Retired			0.0
Average Cost Per Share			$ 0