Equity - Share Repurchases (Detail) - USD ($) $ / shares in Units, shares in Millions, $ in Millions |
3 Months Ended | |
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Mar. 31, 2017 |
Mar. 31, 2016 |
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| Equity [Abstract] | ||
| Number of shares repurchased | 9 | 2 |
| Cash paid for shares repurchased | $ 420 | $ 75 |
| Effective average cost per delivered share | $ 50.15 | $ 43.96 |
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- References No definition available.
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- Definition The cash outflow to reacquire common stock during the period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Total cost of shares repurchased divided by the total number of shares repurchased. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Number of shares that have been repurchased during the period and are being held in treasury. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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