Earnings per Share (Tables)

9 Months Ended

Sep. 30, 2020

Earnings Per Share [Abstract]

Schedule of Earnings Per Share, Basic and Diluted

	Quarter Ended September 30,				Nine Months Ended September 30,
(dollars in millions, except per share amounts; shares in millions)	2020		2019		2020		2019
Net income attributable to common shareholders	$	266	$	317	$	655	$	898
Basic weighted average number of shares outstanding	433.2		433.1		433.1		433.1
Stock awards and equity units (share equivalent)	1.9		—		1.0		—
Diluted weighted average number of shares outstanding	435.1		433.1		434.1		433.1
Earnings Per Share of Common Stock:
Basic:	$	0.61	$	0.73	$	1.51	$	2.07
Diluted:	$	0.61	$	0.73	$	1.51	$	2.07