(11) FINANCING ARRANGEMENTS

Senior Notes

In February 2016, we issued $600 million aggregate principal amount of 3.70% Senior Notes due March 1, 2021 (the “2021 Notes”) and $400 million aggregate principal amount of 4.80% Senior Notes due March 1, 2026 (the “2026 Notes,” and together with the 2021 Notes, the “Senior Notes”). Our proceeds were $989 million, net of discount of $2 million and issuance costs of $9 million. Both the discount and issuance costs are being amortized to interest expense over the respective terms of the 2021 Notes and the 2026 Notes using the effective interest rate method. The effective interest rate is 3.94% for the 2021 Notes and 4.97% for the 2026 Notes. Interest is payable semiannually in arrears, on March 1 and September 1 of each year.

The carrying and fair values of the Senior Notes are as follows (in millions):



	As of March 31, 2018			As of March 31, 2017
Senior Notes:
3.70% Senior Notes due 2021	$	600		$	600
4.80% Senior Notes due 2026	400			400
Total principal amount	$	1,000		$	1,000
Unaccreted discount	(2		)	(2		)
Unamortized debt issuance costs	(6		)	(8		)
Net carrying value of Senior Notes	$	992		$	990

Fair value of Senior Notes (Level 2)	$	1,038		$	1,054

As of March 31, 2018, the remaining life of the 2021 Notes and 2026 Notes is approximately 2.9 years and 7.9 years, respectively.

The Senior Notes are senior unsecured obligations and rank equally with all our other existing and future unsubordinated obligations and any indebtedness that we may incur from time to time under our Credit Facility.

The 2021 Notes and the 2026 Notes are redeemable at our option at any time prior to February 1, 2021 or December 1, 2025, respectively, subject to a make-whole premium. Within one and three months of maturity, we may redeem the 2021 Notes or the 2026 Notes, respectively, at a redemption price equal to 100% of the aggregate principal amount plus accrued and unpaid interest. In addition, upon the occurrence of a change of control repurchase event, the holders of the Senior Notes may require us to repurchase all or a portion of the Senior Notes, at a price equal to 101% of their principal amount, plus accrued and unpaid interest to the date of repurchase. The Senior Notes also include covenants that limit our ability to incur liens on assets and to enter into sale and leaseback transactions, subject to certain allowances.

Credit Facility

In March 2015, we entered into a $500 million senior unsecured revolving credit facility (“Credit Facility”) with a syndicate of banks. The Credit Facility terminates on March 19, 2020. The Credit Facility contains an option to arrange with existing lenders and/or new lenders to provide up to an aggregate of $250 million in additional commitments for revolving loans. Proceeds of loans made under the Credit Facility may be used for general corporate purposes.

The loans bear interest, at our option, at the base rate plus an applicable spread or an adjusted LIBOR rate plus an applicable spread, in each case with such spread being determined based on our consolidated leverage ratio for the preceding fiscal quarter. We are also obligated to pay other customary fees for a credit facility of this size and type. Interest is due and payable in arrears quarterly for loans bearing interest at the base rate and at the end of an interest period (or at each three month interval in the case of loans with interest periods greater than three months) in the case of loans bearing interest at the adjusted LIBOR rate. Principal, together with all accrued and unpaid interest, is due and payable on March 19, 2020.

The credit agreement contains customary affirmative and negative covenants, including covenants that limit or restrict our ability to, among other things, incur subsidiary indebtedness, grant liens, dispose of all or substantially all assets and pay dividends or make distributions, in each case subject to customary exceptions for a credit facility of this size and type. We are also required to maintain compliance with a capitalization ratio and maintain a minimum level of total liquidity.

The credit agreement contains customary events of default, including among others, non-payment defaults, covenant defaults, cross-defaults to material indebtedness, bankruptcy and insolvency defaults, material judgment defaults and a change of control default, in each case, subject to customary exceptions for a credit facility of this size and type. The occurrence of an event of default could result in the acceleration of the obligations under the credit facility, an obligation by any guarantors to repay the obligations in full and an increase in the applicable interest rate.

As of March 31, 2018 and 2017, no amounts were outstanding under the Credit Facility. $2 million of debt issuance costs that were paid in connection with obtaining this credit facility are being amortized to interest expense over the 5-year term of the Credit Facility.

Interest Expense

The following table summarizes our interest expense recognized for fiscal years 2018, 2017, and 2016 that is included in interest and other income (expense), net on our Consolidated Statements of Operations (in millions):



	Year Ended March 31,
	2018			2017			2016
Amortization of debt discount	—			(2		)	(17		)
Amortization of debt issuance costs	(2		)	(2		)	(3		)
Coupon interest expense	(42		)	(42		)	(7		)
Other interest expense	—			(1		)	(1		)
Total interest expense	$	(44	)	$	(47	)	$	(28	)