Stock-Based Compensation (Tables)

6 Months Ended

Jun. 30, 2017

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

Schedule of Employee Service Share-based Compensation, Allocation of Recognized Period Costs

The following table summarizes non-cash compensation expense for each of the three and six months ended June 30, 2017 and 2016 (dollars in millions):

	Three Months Ended June 30,					Six Months Ended June 30,
	2017		2016			2017		2016
Outperform Stock Appreciation Rights	$	—	$	1		$	—	$	2
Restricted Stock Units	28		13			56		34
Performance Restricted Stock Units	3		10			12		24
401(k) Match Expense	8		8			19		19
	39		32			87		79
Capitalized Non-Cash Comp	—		(1		)	—		(1		)
Total	$	39	$	31		$	87	$	78