Lease Commitments (Tables)

12 Months Ended

Dec. 31, 2014

Leases, Operating [Abstract]

Rental expenses for operating leases

Rental expenses (including amounts applicable to taxes, insurance and maintenance) for operating leases are as follows (in millions):

Years ended December 31	2014		2013		2012
Rental expense	$	455	$	520	$	536
Sub lease rental income	75		77		72
Net rental expense	$	380	$	443	$	464

Future minimum rental payments under operating leases for continuing operations that have initial or remaining noncancelable lease terms in excess of one year, net of sublease rental income

At December 31, 2014, future minimum rental payments required under operating leases that have initial or remaining non-cancelable lease terms in excess of one year, net of sublease rental income, are as follows (in millions):

2015	$	362
2016	333
2017	297
2018	270
2019	240
Thereafter	876
Total minimum payments required	$	2,378