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Equity | 3 Months Ended
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Mar. 31, 2017
Equity [Abstract] |
Equity | Equity As of March 31, 2017, we had $2.14 billion of remaining share repurchase authorization from our board of directors. We may utilize various methods to effect the repurchases, which could include open market repurchases, negotiated block transactions, accelerated share repurchases or open market solicitations for shares, some of which may be affected through Rule 10b5-1 plans. The timing and amount of future repurchases, if any, will depend upon several factors, including market and business conditions, and such repurchases may be discontinued at any time. Total share repurchases were as follows for the three months ended March 31, 2017 and 2016:
| Three Months Ended March 31,
(In millions, except per share data) | 2017 |  | 2016
Number of shares repurchased | 9 |  |  | 2 |
Cash paid for shares repurchased | $ | 420 |  |  | $ | 75 |
Effective average cost per delivered share | $ | 50.15 |  |  | $ | 43.96 |
As of March 31, 2017, we had agreements to acquire 1,184,682 common shares for $60 million, which were settled in early April 2017.

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