Leases (Tables)

12 Months Ended

Dec. 31, 2016

Leases [Abstract]

Schedule of Commitments Relating to Noncancellable Operating Leases

Commitments relating to noncancellable operating leases for each of the next five years and thereafter are as follows (dollars in millions):

For the Year Ended December 31,
2017	$	288
2018		270
2019		227
2020		189
2021		138
Thereafter		938
		2,050
Less sublease income		(14	)
	$	2,036