Quarterly Financial Information (Tables)

12 Months Ended

Dec. 31, 2022

Quarterly Financial Information Disclosure [Abstract]

Quarterly Financial Information [Table Text Block]

The following tables represent our quarterly financial results:

	2022 Calendar Quarter
	First1		Second1		Third1		Fourth1,2		Annual
Total Operating Revenues	$	29,712	$	29,643	$	30,043	$	31,343	$	120,741
Operating Income (Loss)	5,537		4,956		6,012		(21,092)		(4,587)
Net Income (Loss) from Continuing Operations	5,149		4,751		6,346		(23,120)		(6,874)
Net Income (Loss) from Continuing Operations Attributable to Common Stock	4,747		4,319		5,924		(23,536)		(8,546)
Basic Earnings (Loss) Per Share
Attributable to Common Stock from Continuing Operations3	$	0.66	$	0.60	$	0.82	$	(3.20)	$	(1.10)
Diluted Earnings (Loss) Per Share
Attributable to Common Stock from Continuing Operations3	$	0.65	$	0.59	$	0.79	$	(3.20)	$	(1.10)
1Includes actuarial gains and losses on pension and postretirement benefit plans (Note 14).
2Includes goodwill impairments (Note 9) and an asset abandonment charge (Note 7).
3Quarterly earnings per share impacts may not add to full-year earnings per share impacts due to the difference in weighted-average common shares for the quarters versus the weighted-average common shares for the year.

	2021 Calendar Quarter
	First1		Second1		Third1		Fourth1		Annual
Total Operating Revenues	$	35,877	$	35,740	$	31,326	$	31,095	$	134,038
Operating Income	7,194		7,572		6,237		4,894		25,897
Net Income from Continuing Operations	7,586		5,969		5,019		5,202		23,776
Net Income from Continuing Operations Attributable to Common Stock	7,143		5,526		4,613		4,802		22,084
Basic Earnings Per Share
Attributable to Common Stock from Continuing Operations2	$	0.99	$	0.77	$	0.64	$	0.67	$	3.07
Diluted Earnings Per Share
Attributable to Common Stock from Continuing Operations2	$	0.97	$	0.76	$	0.63	$	0.66	$	3.02
1Includes actuarial gains and losses on pension and postretirement benefit plans (Note 14).
2Quarterly earnings per share impacts may not add to full-year earnings per share impacts due to the difference in weighted-average common shares for the quarters versus the weighted-average common shares for the year.