Earnings Per Common Share (Schedule Of Basic And Diluted Earnings Per Common Share) (Details) (USD $) In Millions, except Share data, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
Earnings Per Share [Abstract]
Net income (loss) from continuing operations	$ 283	$ 100	$ 481	$ 160
Preferred stock dividends - U.S. Department of Treasury	0	(133)	0	(267)
Preferred stock dividends	(65)	(67)	(133)	(134)
Net income (loss) from continuing operations attributable to common shareholders	218	(100)	348	(241)
Income (loss) from discontinued operations, net of tax	40	(1,027)	69	6
Net income (loss) attributable to common shareholders	$ 258	$ (1,127)	$ 417	$ (235)
Basic weighted-average common shares outstanding	481,350,249	412,600,700	480,563,267	412,600,700
Diluted weighted-average common shares outstanding	482,342,629	412,600,700	481,055,084	412,600,700
Earnings Per Share, Basic [Abstract]
Net income (loss) from continuing operations, Per Basic Share	$ 0.45	$ (0.24)	$ 0.73	$ (0.58)
Income (Loss) from Discontinued Operations, Net of Tax, Per Basic Share	$ 0.09	$ (2.49)	$ 0.14	$ 0.01
Net (loss) income, Basic	$ 0.54	$ (2.73)	$ 0.87	$ (0.57)
Earnings Per Share, Diluted [Abstract]
Net income (loss) from continuing operations, Per Diluted Share	$ 0.45	$ (0.24)	$ 0.73	$ (0.58)
Income (loss) from discontinued operations, net of tax, Diluted	$ 0.09	$ (2.49)	$ 0.14	$ 0.01
Net (loss) income, Diluted	$ 0.54	$ (2.73)	$ 0.87	$ (0.57)
Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Outstanding, Number	1,600,000		1,600,000
Potential common shares excluded from diluted earnings per share calculation		178,000,000