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Shareholders' Equity And Net Income Per Share Share Repurchase Program (Details) (USD $)
In Millions, except Share data, unless otherwise specified |
3 Months Ended | 6 Months Ended | 1 Months Ended | ||||||
|---|---|---|---|---|---|---|---|---|---|
|
Jun. 30, 2014
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Jun. 30, 2013
|
Jun. 30, 2014
|
Jun. 30, 2013
|
Jun. 30, 2014
Share Repurchase Program January 2012 [Member]
|
Jun. 30, 2014
Share Repurchase Program September 2012 [Member]
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Jun. 30, 2014
Share Repurchase Program January 2014 [Member]
|
Jul. 30, 2014
Subsequent Event [Member]
|
Jul. 31, 2014
Subsequent Event [Member]
Share Repurchase Program January 2014 [Member]
|
|
| Share Repurchase Program [Line Items] | |||||||||
| Stock Repurchase Program, Authorized Amount | $ 300 | $ 750 | $ 1,000 | ||||||
| Stock Repurchased During Period, Shares | 3,267,998 | 2,445,583 | 5,644,389 | 5,295,583 | |||||
| Stock Repurchased, Average Price per Share | $ 67.43 | $ 49.12 | $ 66.89 | $ 45.71 | |||||
| Stock Repurchased During Period, Value | 220 | 120 | 378 | 242 | 120 | ||||
| Stock Repurchase Program, Remaining Authorized Repurchase Amount | $ 813 | $ 693 | |||||||