Share-Based Compensation (Tables)

9 Months Ended

Sep. 30, 2016

Disclosure of Compensation Related Costs, Share-based Payments [Abstract]

Disclosure of Share-based Compensation Arrangements by Share-based Payment Award

We recognized the following employee share-based compensation expense during the third quarter and the nine months of 2016 and 2015:

	Three Months Ended September 30,					Nine Months Ended September 30,
(Dollars in millions)	2016			2015		2016		2015
Share-based compensation	$	19		$	18	$	57	$	52
Related tax (provision) benefit	(8		)	3		—		10