Summarized Quarterly Financial Data (Unaudited) (Tables)

12 Months Ended

Dec. 31, 2019

Quarterly Financial Information Disclosure [Abstract]

Summarized Quarterly Financial Data (Unaudited)

	Quarter Ended
(Amounts in millions, except per share data)	March 31, 2019		June 30, 2019		Sept. 30, 2019		Dec. 31, 2019
Operating revenues	$	3,141	$	2,577	$	3,013	$	2,798
Operating income	486		410		758		450
Net income	315		238		527		292
EPS total — basic	$	0.61	$	0.46	$	1.02	$	0.56
EPS total — diluted	0.61		0.46		1.01		0.56
Cash dividends declared per common share	0.405		0.405		0.405		0.405

	Quarter Ended
(Amounts in millions, except per share data)	March 31, 2018		June 30, 2018		Sept. 30, 2018		Dec. 31, 2018
Operating revenues	$	2,951	$	2,658	$	3,048	$	2,880
Operating income (a)	480		450		696		339
Net income	291		265		491		214
EPS total — basic	$	0.57	$	0.52	$	0.96	$	0.42
EPS total — diluted	0.57		0.52		0.96		0.42
Cash dividends declared per common share	0.380		0.380		0.380		0.380

^(a) 

In 2018, Xcel Energy implemented ASU No. 2017-07 related to net periodic benefit cost, which resulted in retrospective reclassification of pension costs from O&M expense to other income.