EARNINGS PER COMMON SHARE (Tables)

12 Months Ended

Dec. 31, 2018

Earnings Per Share [Abstract]

Schedule of reconciliations of the numerators and denominators used in the computations of basic and diluted earnings per common share

Reconciliations of the numerators and denominators used in the computations of basic and diluted earnings per common share were as follows, in millions:

	2018		2017		2016
Numerator (basic and diluted):
Net income	$	734	$	533	$	493
Less: Allocation to unvested restricted stock awards	7		5		6
Net income available to common shareholders	$	727	$	528	$	487
Denominator:
Basic common shares (based upon weighted average)	305		314		326
Add: Stock option dilution	2		4		4
Diluted common shares	307		318		330