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Income Taxes (Schedule Of Effective Income Tax Reconciliation) (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Income Taxes [Abstract]
Total income tax expense (benefit)	$ 613	$ 210	$ 1,698	$ (99)
U.S. statutory income tax rate	35.00%	35.00%	35.00%	(35.00%)
Repatriations			7.00%
State income taxes	2.00%	1.00%	1.00%	(3.00%)
Taxation on Canadian operations		(5.00%)	1.00%	9.00%
Taxes on EnLink formation			1.00%
Other		2.00%		(1.00%)
Effective income tax rate	37.00%	33.00%	45.00%	(30.00%)

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Effective income tax rate reconciliation, formation of entity.

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Percentage of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

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Percentage of domestic federal statutory tax rate applicable to pretax income (loss).

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