Supplementary Data

Quarterly Financial Information (Unaudited)



(in millions, except share and per share amounts)	First Quarter			Second Quarter			Third Quarter			Fourth Quarter			Full Year
2018
Total revenues	$	10,455		$	10,571		$	10,839		$	11,445		$	43,310
Operating income	1,282			1,450			1,440			1,137			5,309
Net income	671			782			795			640			2,888
Net income attributable to common stockholders	671			782			795			640			2,888
Earnings per share
Basic	$	0.78		$	0.92		$	0.94		$	0.75		$	3.40
Diluted	0.78			0.92			0.93			0.75			3.36
Weighted average shares outstanding
Basic	855,222,664			847,660,488			847,087,120			849,102,785			849,744,152
Diluted	862,244,084			852,040,670			853,852,764			856,344,347			858,290,174
2017
Total revenues	$	9,613		$	10,213		$	10,019		$	10,759		$	40,604
Operating income	1,037			1,416			1,323			1,112			4,888
Net income	698			581			550			2,707			4,536
Dividends on preferred stock	(14		)	(14		)	(13		)	(14		)	(55		)
Net income attributable to common stockholders	684			567			537			2,693			4,481
Earnings per share
Basic	$	0.83		$	0.68		$	0.65		$	3.22		$	5.39
Diluted	0.80			0.67			0.63			3.11			5.20
Weighted average shares outstanding
Basic	827,723,034			830,971,528			831,189,779			837,416,683			831,850,073
Diluted	869,395,984			870,457,181			871,420,065			871,501,578			871,787,450
Net income includes:
Gains on disposal of spectrum licenses	(37		)	(1		)	(29		)	(168		)	(235		)

In December 2017, the TCJA was signed into legislation. The TCJA included numerous changes to existing tax law, including a permanent reduction in the federal corporate income tax rate from 35% to 21%. The rate reduction took place on January 1, 2018. We recognized a net tax benefit of $2.2 billion associated with the enactment of the TCJA in Income tax (expense) benefit in our Consolidated Statements of Comprehensive Income in the fourth quarter of 2017, primarily due to a re-measurement of deferred tax assets and liabilities.

Earnings per share is computed independently for each quarter and the sum of the quarters may not equal earnings per share for the full year.