Lease Commitments (Tables)

12 Months Ended

Dec. 31, 2012

Lease Commitments

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	2012		2011		2010
Rental expense	$	536	$	525	$	429
Sub lease rental income		72		71		57
Net rental expense	$	464	$	454	$	372

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, 2012, 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):

2013	$	432
2014		396
2015		365
2016		332
2017		293
Thereafter		1,072
Total minimum payments required	$	2,890