Income Taxes (Significant Components Of Income Taxes) (Details) - USD ($) $ in Millions	12 Months Ended
Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Current
Federal	$ 327	$ 270	$ 641
State	5	17	57
Foreign	146	158	235
Deferred
Federal	18	17	(29)
State	28	9	28
Foreign	10	(33)	(55)
Total Income Taxes	$ 534	$ 438	$ 877

Amount of current federal tax expense (benefit) pertaining to income (loss) from continuing operations.

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Amount of current state and local tax expense (benefit) pertaining to income (loss) from continuing operations.

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