Summary Of Significant Accounting Policies Schedule of Earnings Per Share Basic And Diluted (Details) (USD $) In Millions, except Per Share data, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Schedule of Earnings Per Share Basic And Diluted [Abstract]
Continuing Operations	$ 294	$ 305	$ 541	$ 464
Discontinued Operations	(1)	(3)	(3)	(212)
Net Income (Loss) Attributable to Parent	$ 293	$ 302	$ 538	$ 252
Average Common Shares Outstanding - Basic	242.6	242.6	242.6	242.6
Incremental Common Shares Attributable to Dilutive Effect of Share-based Payment Arrangements	1.7	2.5	1.7	1.8
Average Common Shares Outstanding - Diluted	244.3	245.1	244.3	244.4
Continuing Operations	$ 1.21	$ 1.26	$ 2.23	$ 1.92
Discontinued Operations		$ (0.01)	$ (0.01)	$ (0.88)
Earnings Per Share, Basic	$ 1.21	$ 1.25	$ 2.22	$ 1.04
Continuing Operations	$ 1.20	$ 1.25	$ 2.21	$ 1.91
Discontinued Operations		$ (0.01)	$ (0.01)	$ (0.88)
Earnings Per Share, Diluted	$ 1.20	$ 1.24	$ 2.20	$ 1.03