The cash outflow associated with tax withholding obligations upon release of vested restricted stock units.

No definition available.

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- Definition

Treasury Stock, Shares, Acquired, as Percentage of Shares Pursuant to Accelerated Share Repurchase Agreement

+ References

No definition available.

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- Definition

The amount needed to adjust previously recorded stockholders' equity balances to the actual aggregate amounts paid, whether in cash or other consideration, to acquire all of the shares purchased under an Accelerated Share Repurchase arrangement.

+ References

No definition available.

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- Definition

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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- Definition

For net-share settlement of share-based awards when the employer settles employees' income tax withholding obligations, this element represents the number of shares the employees use to repay the employer.

+ References

No definition available.

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- Definition

Amount of stock repurchase plan authorized.

+ References

No definition available.

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- Definition

Amount remaining of a stock repurchase plan authorized.

+ References

No definition available.

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- Definition

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

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- Definition

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

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- Definition

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

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Treasury Stock (Details) - USD ($)	1 Months Ended				3 Months Ended		6 Months Ended
Treasury Stock (Details) - USD ($)	Apr. 30, 2018	Feb. 28, 2018	Jan. 31, 2018	Nov. 30, 2017	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Equity, Class of Treasury Stock [Line Items]
Stock repurchase program, authorized amount					$ 8,500,000,000		$ 8,500,000,000
Available to repurchase common stock					514,100,000		$ 514,100,000
Accelerated share repurchase program				$ 750,000,000
Amount expended on share repurchases in open market transactions					$ 15,000,000
Number of shares withheld to satisfy minimum tax withholding obligations					30,502	43,446	537,776	734,600
Payment for tax withholding related to vested stock units					$ 3,000,000	$ 3,600,000	$ 49,900,000	$ 60,500,000
Open Market Purchases [Member]
Equity, Class of Treasury Stock [Line Items]
Amount expended on share repurchases in open market transactions						$ 0		$ 500,000,000
Number of shares repurchased					140,200			6,399,499
Average per share price on share repurchases in open market transactions (in dollars per share)					$ 106.83			$ 78.13
ASR Counterparty [Member]
Equity, Class of Treasury Stock [Line Items]
Amount expended on share repurchases in open market transactions		$ 750,000,000		$ 750,000,000
Number of shares repurchased	1,642,603	6,508,298	1,400,000	7,132,668
Shares repurchased as percentage of shares pursuant to accelerated share repurchase agreement (percent)				80.00%