Income Taxes And Tax-Related Items Current and Deferred Components of the Provision for Income Taxes (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended								12 Months Ended
	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2012	Sep. 30, 2012	Jun. 30, 2012	Mar. 31, 2012	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Income Tax Disclosure [Abstract]
Current Federal Income Tax									$ 186	$ 7	$ 42
Current Foreign Income Tax									6	6	9
Current State and Local Income Tax									17	18	7
Total Current Income Tax									209	31	58
Deferred Federal Income Tax (Benefit)									(20)	152	73
Deferred State and Local Income Tax									0	6	6
Total Deferred Income Tax (Benefit)									(20)	158	79
Provision for income taxes	$ 35	$ 54	$ 50	$ 50	$ 55	$ 36	$ 50	$ 48	$ 189	$ 189	$ 137