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
	Mar. 31, 2014		Mar. 31, 2013
Earnings Per Share [Abstract]
Net income (loss) from continuing operations	$ 198		$ 60
Preferred stock dividends - U.S. Department of Treasury	0		(133)
Preferred stock dividends	(68)		(67)
Net income (loss) from continuing operations attributable to common shareholders	130		(140)
Income (loss) from discontinued operations, net of tax	29		1,033
Net income (loss) attributable to common shareholders	$ 159		$ 893
Basic weighted-average common shares outstanding	479,767,540		412,600,700
Diluted weighted-average common shares outstanding	479,767,540	[1]	412,600,700	[1]
Earnings Per Share, Basic [Abstract]
Net income (loss) from continuing operations, Per Basic Share	$ 0.27		$ (0.34)
Income (Loss) from Discontinued Operations, Net of Tax, Per Basic Share	$ 0.06		$ 2.50
Net (loss) income, Basic	$ 0.33		$ 2.16
Earnings Per Share, Diluted [Abstract]
Net income (loss) from continuing operations, Per Diluted Share	$ 0.27	[1]	$ (0.34)	[1]
Income (loss) from discontinued operations, net of tax, Diluted	$ 0.06	[1]	$ 2.50	[1]
Net (loss) income, Diluted	$ 0.33	[1]	$ 2.16	[1]
Potential common shares excluded from diluted earnings per share calculation			178,000,000

[1] Due to the antidilutive effect of converting the Fixed Rate Cumulative Mandatorily Convertible Preferred Stock into common shares for the three months ended March 31, 2013 and the net loss from continuing operations attributable to common shareholders for the three months ended March 31, 2013, net income (loss) from continuing operations attributable to common shareholders and basic weighted-average common shares outstanding were used to calculate basic and diluted earnings per share.