Supplemental Quarterly Results

12 Months Ended

Dec. 31, 2019

Quarterly Financial Data [Abstract]

Supplemental Quarterly Results

SUPPLEMENTAL QUARTERLY RESULTS (UNAUDITED)

The following is a summary of the quarterly results of operations for the years ended December 31, 2019 and 2018:

(in millions, except share amounts)	1st Quarter		2nd Quarter		3rd Quarter		4th Quarter
	2019
Operating revenues	$	990	$	667	$	636	$	745
Operating income (loss)	213		22		(29)		64
Net income attributable to common stock	594		138		49		110
Earnings per share – Basic	1.10		0.26		0.09		0.20
Earnings per share – Diluted	1.10		0.26		0.09		0.20
	2018
Operating revenues	$	920	$	816	$	951	$	1,175
Operating income	255		124		66		352
Net income (loss) attributable to common stock	205		51		(29)		307
Earnings (loss) per share – Basic	0.36		0.09		(0.05)		0.54
Earnings (loss) per share – Diluted	0.36		0.09		(0.05)		0.54