Notes Receivable

6 Months Ended

Jun. 30, 2016

NOTES RECEIVABLE

The following table presents the composition of our notes receivable balances (net of reserves and unamortized discounts) at the end of the 2016 second quarter and year-end 2015:



	At Period End
($ in millions)	June 30, 2016			December 31, 2015
Senior, mezzanine, and other loans	$	234		$	221
Less current portion	(7		)	(6		)
	$	227		$	215

We do not have any past due notes receivable amounts at the end of the 2016 second quarter. The unamortized discounts for our notes receivable were $29 million at the end of the 2016 second quarter and $31 million at year-end 2015.

The following table presents the expected future principal payments (net of reserves and unamortized discounts) as well as interest rates for our notes receivable as of the end of the 2016 second quarter:



Notes Receivable Principal Payments (net of reserves and unamortized discounts) and Interest Rates ($ in millions)	Amount
2016	$	5
2017	3
2018	62
2019	5
2020	6
Thereafter	153
Balance at June 30, 2016	$	234
Weighted average interest rate at June 30, 2016	7.7%
Range of stated interest rates at June 30, 2016	0 - 18%

At the end of the 2016 second quarter, our recorded investment in impaired senior, mezzanine, and other loans was $74 million and we had $57 million allowance for credit losses, leaving $17 million of exposure to our investment in impaired loans. At year-end 2015, our recorded investment in impaired senior, mezzanine, and other loans was $72 million, and we had a $55 million allowance for credit losses, leaving $17 million of exposure to our investment in impaired loans. Our average investment in impaired notes receivable totaled $73 million for the 2016 second quarter, $73 million for the 2016 first half, $69 million for the 2015 second quarter, and $67 million for the 2015 first half.