Net Income/(Loss) Per Common Share (Tables)

3 Months Ended

Mar. 31, 2016

Earnings Per Share [Abstract]

Reconciliation of Net Income/(Loss) to Net Income/(Loss) Available to Common Shareholders

	Three Months Ended March 31
(Dollars and shares in millions, except per share data)	2016			2015
Net income		$447			$429
Preferred dividends	(17		)	(17		)
Dividends and undistributed earnings allocated to unvested shares	—			(1		)
Net income available to common shareholders		$430			$411
Average basic common shares	505			521
Effect of dilutive securities:
Stock options	2			2
Restricted stock, RSUs, and warrants	3			4
Average diluted common shares	510			527
Net income per average common share - diluted		$0.84			$0.78
Net income per average common share - basic		$0.85			$0.79