
($ in Millions)
September 30, 2011
Debt Instrument	Type	Average Annual Interest Rate		Final Maturity	Total Face Amount			Total Long-term Debt
$1.25 Billion Term Loan	Variable		1.73 %	2016	$	984.4	(6)	$	922.1	(6)
$700 Million 4.875% 2021 Senior Notes	Fixed		4.88 %	2021		700.0			699.3	(5)
$1.3 Billion Senior Notes:
$500 Million 4.80% 2020 Senior Notes	Fixed		4.80 %	2020		500.0			499.0	(4)
$800 Million 6.25% 2040 Senior Notes	Fixed		6.25 %	2040		800.0			790.1	(3)
$400 Million 5.90% 2020 Senior Notes	Fixed		5.90 %	2020		400.0			398.0	(2)
$325 Million Private Placement Senior Notes:
Series 2008A - Tranche A	Fixed		6.31 %	2013		270.0			270.0
Series 2008A - Tranche B	Fixed		6.59 %	2015		55.0			55.0
$1.75 Billion Credit Facility:
Revolving Loan	Variable		1.84 %	2016		1,750.0			250.0	(1)

Total					$	5,459.4		$	3,883.5


December 31, 2010
Debt Instrument	Type	Average Annual Interest Rate		Final Maturity	Total Face Amount		Total Long-term Debt
$1 Billion Senior Notes:
$500 Million 4.80% 2020 Senior Notes	Fixed		4.80 %	2020	$	500.0	$	499.0	(4)
$500 Million 6.25% 2040 Senior Notes	Fixed		6.25 %	2040		500.0		491.3	(3)
$400 Million 5.90% 2020 Senior Notes	Fixed		5.90 %	2020		400.0		397.8	(2)
$325 Million Private Placement Senior Notes:
Series 2008A - Tranche A	Fixed		6.31 %	2013		270.0		270.0
Series 2008A - Tranche B	Fixed		6.59 %	2015		55.0		55.0
$600 Million Credit Facility:
Revolving Loan	Variable		0.0 %	2012		600.0		-	(1)

Total					$	2,325.0	$	1,713.1

(1) As of September 30, 2011 and December 31, 2010, $250 million and no revolving loans were drawn under the credit facility, respectively, and the principal amount of letter of credit obligations totaled $23.5 million and $64.7 million, respectively, thereby reducing available borrowing capacity to $1,476.5 million and $535.3 million, respectively.

(2) As of September 30, 2011 and December 31, 2010, the $400 million 5.90 percent senior notes were recorded at a par value of $400 million less unamortized discounts of $2.0 million and $2.2 million, respectively, based on an imputed interest rate of 5.98 percent.

(3) As of September 30, 2011 and December 31, 2010, the $800 million and $500 million 6.25 percent senior notes were recorded at par values of $800 million and $500 million, respectively, less unamortized discounts of $9.9 million and $8.7 million, respectively, based on an imputed interest rate of 6.38 percent.

(4) As of September 30, 2011 and December 31, 2010, the $500 million 4.80 percent senior notes were recorded at a par value of $500 million less unamortized discounts of $1.0 million and $1.0 million, respectively, based on an imputed interest rate of 4.83 percent.

(5) As of September 30, 2011, the $700 million 4.875 percent senior notes were recorded at a par value of $700 million less unamortized discounts of $0.7 million, based on an imputed interest rate of 4.89 percent.

(6) As of September 30, 2011, $265.6 million had been paid down on the orgininal $1.25 billion term loan and of the remaining term loan $62.3 million was classified as Current portion of term loan. The current classification is based upon the principal payment terms of the arrangement requiring principal payments on each three-month anniversary following the funding of the term loan.