Quarterly Financial Data (Unaudited)

12 Months Ended

Dec. 31, 2017

Quarterly Financial Information Disclosure [Abstract]



	Operating Revenues		Operating Income	Net Income (Loss)
	(Dollars in millions)
2016
First quarter (predecessor)	$	2,051	362	128
Second quarter (predecessor)	2,057		375	156
Third quarter (predecessor)	2,033		354	143
Fourth quarter (predecessor)	2,032		354	250
Total	$	8,173	1,445	677
2017
First quarter (predecessor)	$	2,048	337	95
Second quarter (predecessor)	2,062		353	154
Third quarter (predecessor)	2,059		349	157
Month ended October 31 (predecessor)	701		112	19
Two months ended December 31 (successor)	1,407		158	(141	)
Total	$	8,277	1,309	284

During the second quarter of 2016, we recognized a loss on modification and extinguishment of debt of $40 million, related to the redemption of the 7% Senior Notes due 2020.

In the second quarter of 2016, we recognized approximately $40 million income tax benefit related to the release of our German deferred tax valuation allowance.

In the fourth quarter of 2016, we recognized a $110 million income tax benefit related to the issuance of new regulations under Internal Revenue Code Section 987 addressing the taxation of foreign currency translation gains and losses arising from foreign branches.

In the fourth quarter of 2016, we recognized a $35 million income tax benefit related to releases of deferred tax valuation allowances primarily in Brazil.

In the fourth quarter of 2016, we recognized $16 million income tax expense related to income tax rate changes.

In the two months ended December 31, 2017 we recognized a $195 million income tax expense related to the Tax Act.