QUARTERLY FINANCIAL DATA

12 Months Ended

Dec. 31, 2018

(unaudited)



	Three months ended
(in millions except per share amounts)	March 31		June 30		Sept. 30		Dec. 31
2018
Operating revenues	$	4,944	$	5,742	$	5,575	$	5,704
Operating income	616		972		798		820
Income before income taxes	602		960		786		817
Net income	463		733		615		654
Net income per share, basic	0.79		1.27		1.08		1.17
Net income per share, diluted	0.79		1.27		1.08		1.17

	March 31		June 30		Sept. 30		Dec. 31
	As Recast		As Recast		As Recast		As Recast
2017
Operating revenues	$	4,854	$	5,731	$	5,303	$	5,258
Operating income	606		1,215		845		741
Income before income taxes	532		1,165		832		736
Net income	339		743		528		1,747		(a)
Net income per share, basic	0.55		1.23		0.88		2.95		(a)
Net income per share, diluted	0.55		1.23		0.88		2.94		(a)

(a) Includes a $1.3 billion reduction in Provision for income taxes related to the Tax Cuts and Jobs Act legislation enacted in December 2017, which resulted in a re-measurement of the Company's deferred tax assets and liabilities at the new federal corporate tax rate of 21 percent. See Note 14 to the Consolidated Financial Statements for further information.