EARNINGS PER SHARE (Tables)

12 Months Ended

Dec. 31, 2016

Earnings Per Share [Abstract]

Schedule of earnings per share

	Year Ended December 31,
(dollars in millions, except share and per-share data)	2016		2015		2014
Numerator (basic and diluted):
Net income		$1,045		$840		$865
Less: Preferred stock dividends	14		7		—
Net income available to common stockholders		$1,031		$833		$865
Denominator:
Weighted-average common shares outstanding - basic	522,093,545		535,599,731		556,674,146
Dilutive common shares: share-based awards	1,837,173		2,621,167		1,050,790
Weighted-average common shares outstanding - diluted	523,930,718		538,220,898		557,724,936
Earnings per common share:
Basic		$1.97		$1.55		$1.55
Diluted	1.97		1.55		1.55