v3.4.0.3

Employee Incentive Plans (Share Grants And Fair Value) (Details) - USD ($) $ in Millions	12 Months Ended				68 Months Ended	107 Months Ended
	Dec. 31, 2015		Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012	Mar. 31, 2016
Employee Incentive Plans [Abstract]
Shares granted	1,208,630	[1]	1,709,968	1,894,046	17,284,454
Fair Value - Date of Grant	$ 53		$ 49	$ 46	$ 302
Shares Granted IPO to Date						22,097,098
Fair Value - Date of Grant IPO to Date						$ 450
[1] Stock Incentive Plan number of granted shares related to 2015 was adjusted by 9,551 additional shares during the current period.

X

- Definition

Fair Value of shares granted under the 2007 Stock Incentive Plan.

+ References

No definition available.

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X

- Definition

Fair Value of all shares granted under the 2007 Stock Incentive Plan from the IPO to date.

+ References

No definition available.

+ Details

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Data Type:	xbrli:monetaryItemType
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- Definition

Shares granted under the Stock Incentive Plan.

+ References

No definition available.

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X

- Definition

Shares granted under the Stock Incentive Plan from the IPO to date.

+ References

No definition available.

+ Details

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Data Type:	xbrli:sharesItemType
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- References

No definition available.

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