Debt	6 Months Ended
Jun. 30, 2018
Debt Disclosure [Abstract]
Debt	Debt On June 11, 2018, Teradata replaced its existing five-year, $400 million revolving credit facility with a new $400 million revolving credit facility (the “Credit Facility”). The Credit Facility ends on June 11, 2023 at which point any remaining outstanding borrowings would be due for repayment unless extended by agreement of the parties for up to two additional one-year periods. In addition, under the terms of the Revolving Credit Agreement, Teradata from time to time and subject to certain conditions may increase the lending commitments under the Revolving Credit Agreement in an aggregate principal amount up to an additional $200 million, to the extent that existing or new lenders agree to provide such additional commitments. The outstanding principal amount of the Revolving Credit Agreement bears interest at a floating rate based upon, at Teradata’s option, a negotiated base rate or a Eurodollar rate plus, in each case, a margin based on Teradata’s leverage ratio. In the near term, Teradata would anticipate choosing a floating rate based on the London Interbank Offered Rate (“LIBOR”). The Credit Facility is unsecured but is guaranteed by certain of Teradata’s material domestic subsidiaries and contains certain representations and warranties, conditions, affirmative, negative and financial covenants, and events of default customary for such facilities. As of June 30, 2018, the Company had no borrowings outstanding under the Credit Facility, leaving $400 million in additional borrowing capacity available under the Credit Facility. The Company was in compliance with all covenants as of June 30, 2018. Also, on June 11, 2018, Teradata closed on a new senior unsecured $500 million five-year term loan, the proceeds of which plus additional cash-on-hand were used to pay off the remaining $525 million of principal on its existing term loan. The $500 million term loan is payable in quarterly installments, which will commence on June 30, 2019 with 1.25% of the initial principal amount due on each of the first eight payment dates; 2.50% of the initial principal amount due on each of the next four payment dates; 5.0% of the initial principal amount due on each of the next three payment dates; and all remaining principal due on June 11, 2023. The outstanding principal amount under the term loan agreement bears interest at a floating rate based upon a negotiated base rate or a Eurodollar rate plus a margin based on the leverage ratio of the Company. As of June 30, 2018, the term loan principal outstanding was $500 million. As noted in Note 8, Teradata entered into an interest rate swap to hedge the floating interest rate of the Term Loan. As a result of the swap, Teradata’s fixed rate on the term loan equals 2.86% plus the applicable leverage-based margin as defined in the Term Loan agreement. As of June 30, 2018, the all-in fixed rate is 4.36%. The Company was in compliance with all covenants as of June 30, 2018. Teradata’s term loan is recognized on the Company’s balance sheet at its unpaid principal balance, and is not subject to fair value measurement. However, given that the loan carries a variable rate, the Company estimates that the unpaid principal balance of the term loan would approximate its fair value. If measured at fair value in the financial statements, the Company’s term loan would be classified as Level 2 in the fair value hierarchy.

Debt

On June 11, 2018, Teradata replaced its existing five-year, $400 million revolving credit facility with a new $400 million revolving credit facility (the “Credit Facility”). The Credit Facility ends on June 11, 2023 at which point any remaining outstanding borrowings would be due for repayment unless extended by agreement of the parties for up to two additional one-year periods. In addition, under the terms of the Revolving Credit Agreement, Teradata from time to time and subject to certain conditions may increase the lending commitments under the Revolving Credit Agreement in an aggregate principal amount up to an additional $200 million, to the extent that existing or new lenders agree to provide such additional commitments. The outstanding principal amount of the Revolving Credit Agreement bears interest at a floating rate based upon, at Teradata’s option, a negotiated base rate or a Eurodollar rate plus, in each case, a margin based on Teradata’s leverage ratio. In the near term, Teradata would anticipate choosing a floating rate based on the London Interbank Offered Rate (“LIBOR”). The Credit Facility is unsecured but is guaranteed by certain of Teradata’s material domestic subsidiaries and contains certain representations and warranties, conditions, affirmative, negative and financial covenants, and events of default customary for such facilities. As of June 30, 2018, the Company had no borrowings outstanding under the Credit Facility, leaving $400 million in additional borrowing capacity available under the Credit Facility. The Company was in compliance with all covenants as of June 30, 2018.

Also, on June 11, 2018, Teradata closed on a new senior unsecured $500 million five-year term loan, the proceeds of which plus additional cash-on-hand were used to pay off the remaining $525 million of principal on its existing term loan. The $500 million term loan is payable in quarterly installments, which will commence on June 30, 2019 with 1.25% of the initial principal amount due on each of the first eight payment dates; 2.50% of the initial principal amount due on each of the next four payment dates; 5.0% of the initial principal amount due on each of the next three payment dates; and all remaining principal due on June 11, 2023. The outstanding principal amount under the term loan agreement bears interest at a floating rate based upon a negotiated base rate or a Eurodollar rate plus a margin based on the leverage ratio of the Company. As of June 30, 2018, the term loan principal outstanding was $500 million. As noted in Note 8, Teradata entered into an interest rate swap to hedge the floating interest rate of the Term Loan. As a result of the swap, Teradata’s fixed rate on the term loan equals 2.86% plus the applicable leverage-based margin as defined in the Term Loan agreement. As of June 30, 2018, the all-in fixed rate is 4.36%. The Company was in compliance with all covenants as of June 30, 2018.

Teradata’s term loan is recognized on the Company’s balance sheet at its unpaid principal balance, and is not subject to fair value measurement. However, given that the loan carries a variable rate, the Company estimates that the unpaid principal balance of the term loan would approximate its fair value. If measured at fair value in the financial statements, the Company’s term loan would be classified as Level 2 in the fair value hierarchy.