Leases and Lease Commitments (Tables)

12 Months Ended

Dec. 31, 2017

Leases [Abstract]

Future Minimum Rental Commitments Under Noncancelable Operating Leases

Future minimum rental commitments under noncancelable operating leases for each of the next five years are as follows:

(Stated in millions)
2018	$	284
2019		244
2020		203
2021		164
2022		127
Thereafter		410
	$	1,432