Accounts and Notes Receivable and Allowance for Credit Losses (Tables)

12 Months Ended

Dec. 31, 2013

Receivables [Abstract]

Contractual Amounts Due Under Leases

The contractual amounts due under the leases we retained as of December 31, 2013 were as follows (table in millions):

Year	Contractual Amounts Due Under Leases
Due within one year	$	103
Due within two years	80
Due within three years	68
Thereafter	1
Total	252
Less amounts representing interest	(5		)
Present value	247
Current portion (included in accounts and notes receivable)	101
Long-term portion (included in other assets, net)	$	146

Allowance for Credit Losses

The following table presents the activity of our allowance for credit losses related to lease receivables for the years ended December 31, 2013 and 2012 (table in millions):

	December 31, 2013			December 31, 2012
Balance, beginning of the period	$	17		$	24
Recoveries	(12		)	(15		)
Provisions	4			8
Balance, end of the period	$	9		$	17