LONG-TERM DEBT

In December 2014 and November 2012, we issued $6.0 billion and $3.0 billion of unsecured senior notes as described in the table below (collectively, the “Notes”). As of September 30, 2015, and December 31, 2014, the unamortized discount on the Notes was $91 million and $96 million. We also have other long-term debt with a carrying amount, including the current portion, of $451 million and $881 million as of September 30, 2015, and December 31, 2014. The face value of our total long-term debt obligations is as follows (in millions):



	September 30, 2015			December 31, 2014
0.65% Notes due on November 27, 2015 (1)	$	750		$	750
1.20% Notes due on November 29, 2017 (1)	1,000			1,000
2.50% Notes due on November 29, 2022 (1)	1,250			1,250
2.60% Notes due on December 5, 2019 (2)	1,000			1,000
3.30% Notes due on December 5, 2021 (2)	1,000			1,000
3.80% Notes due on December 5, 2024 (2)	1,250			1,250
4.80% Notes due on December 5, 2034 (2)	1,250			1,250
4.95% Notes due on December 5, 2044 (2)	1,500			1,500
Other long-term debt	451			881
Total debt	9,451			9,881
Less current portion of long-term debt	(1,117		)	(1,520		)
Face value of long-term debt	$	8,334		$	8,361

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(1)	Issued in November 2012, effective interest rates of the 2015, 2017, and 2022 Notes were 0.84%, 1.38%, and 2.66%.


(2)	Issued in December 2014, effective interest rates of the 2019, 2021, 2024, 2034, and 2044 Notes were 2.73%, 3.43%, 3.90%, 4.92%, and 5.11%.

Interest on the Notes issued in 2014 is payable semi-annually in arrears in June and December. Interest on the Notes issued in 2012 is payable semi-annually in arrears in May and November. We may redeem the Notes at any time in whole, or from time to time, in part at specified redemption prices. We are not subject to any financial covenants under the Notes. The proceeds from the Notes are used for general corporate purposes. The estimated fair value of the Notes was approximately $9.2 billion and $9.1 billion as of September 30, 2015, and December 31, 2014, which is based on quoted prices for our publicly-traded debt as of those dates.

The other debt, including the current portion, had a weighted average interest rate of 3.7% and 5.5% as of September 30, 2015, and December 31, 2014. We used the net proceeds from the issuance of this debt primarily to fund certain international operations. The estimated fair value of the other long-term debt, which is based on Level 2 inputs, approximated its carrying value as of September 30, 2015, and December 31, 2014.

On September 5, 2014, we entered into an unsecured revolving credit facility (the “Credit Agreement”) with a syndicate of lenders that provides us with a borrowing capacity of up to $2.0 billion. The Credit Agreement has a term of two years, but it may be extended for up to three additional one-year terms if approved by the lenders. The initial interest rate applicable to outstanding balances under the Credit Agreement is the London interbank offered rate (“LIBOR”) plus 0.625%, under our current credit ratings. If our credit ratings are downgraded this rate could increase to as much as LIBOR plus 1.00%. There were no borrowings outstanding under the Credit Agreement as of September 30, 2015.