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Share Repurchase Programs (Narrative) (Details) - 2014 Stock Purchase Plan [Member] - USD ($) $ in Millions	Dec. 31, 2016	Jan. 29, 2014
Equity, Class of Treasury Stock [Line Items]
Authorized amount for stock repurchase		$ 2,000
Remaining amount available for stock repurchase	$ 1,224

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- Definition

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- Definition

Amount of stock repurchase plan authorized.

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- Definition

Amount remaining of a stock repurchase plan authorized.

+ References

No definition available.

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