Commitments and Contingencies (Tables)

12 Months Ended

Dec. 31, 2013

Commitments and Contingencies Disclosure [Abstract]

Future minimum rentals and minimum rentals to be received under subleases for leases having initial or remaining noncancelable lease terms in excess of one year

As of December 31, 2013, our future minimum rentals and minimum rentals to be received under subleases for leases having initial or remaining noncancelable lease terms in excess of one year were as follows (in millions):

2014	$	305
2015	230
2016	162
2017	111
2018	95
Thereafter	321
Total minimum rental payments	$	1,224
Minimum rentals to be received under subleases	$	21

Rental expense for all operating leases

Rental expense was as follows (in millions):

	Year Ended December 31,
	2013		2012			2011
Minimum rental expense	$	574	$	508		$	523
Contingent rental expense	7		23			23
Total rental expense	581		531			546
Less sublease rental income	—		(2		)	(2		)
Net rental expense	$	581	$	529		$	544