The following table summarizes our material commitments and obligations as of December 31, 2014 and excludes amounts already recorded on the consolidated balance sheet:

			By Period
	Total		Less than 1 year		1 to 3 years		3 to 5 years		More than 5 years
	(in millions)
Operating leases (1)	$	114	$	19	$	27	$	26	$	42
Build to suit lease obligation (2)		143		1		18		18		106
Expected interest payments on Term Loan (3)		9		5		4		—		—
Total (4)(5)(6)(7)	$	266	$	25	$	49	$	44	$	148

(1)	Estimated future minimum rental payments under operating leases with non-cancelable lease terms.

(2)	Estimated future minimum rental payments for our future corporate headquarters in Needham, MA.

(3)

The amounts included as expected interest payments on the Term Loan in this table are based on the current effective interest rate and payment terms as of December 31, 2014, but, could change significantly in the future. Amounts assume that our existing debt is repaid at maturity and do not assume additional borrowings or refinancings of existing debt. Refer to “Note 8— Debt” for additional information, including principal payments expected to be paid over the next two years, on our Term Loan.

(4)

Excluded from the table was $68 million of unrecognized tax benefits, including accrued interest, that we have recorded in other long-term liabilities for which we cannot make a reasonably reliable estimate of the amount and period of payment. We estimate that approximately $1 million will be paid within the next twelve months.

(5)

Excluded from the table is our obligation to fund a charitable foundation. The Board of Directors of the charitable foundation is currently comprised of Stephen Kaufer- President and Chief Executive Officer, Julie M.B. Bradley-Chief Financial Officer and Seth J. Kalvert- Senior Vice President, General Counsel and Secretary. Our obligation was calculated at 2.0% of OIBA in 2014. For a discussion regarding OIBA see “Note 16— Segment and Geographic Information” in the notes to the consolidated financial statements. This future commitment has been excluded from the table above.

(6)

Excludes spending on anticipated leasehold improvements on our Needham, Massachusetts lease, including design, development, construction costs, and the purchase and installation of equipment, net of related landlord incentives, which we estimate will be in the range of $25-$30 million primarily incurred during the first six months of 2015.

(7)	Excludes current liabilities already recorded on the consolidated balance sheet at December 31, 2014, as these liabilities are expected to be paid within one year.