Debt

6 Months Ended

Jun. 30, 2022

Debt Disclosure [Abstract]

Debt

7. Debt

Credit Facilities

As of June 30, 2022 and December 31, 2021, we had $1.5 billion available under a revolving credit facility (the “Revolver”) pursuant to a credit agreement entered into on October 11, 2013 (as amended thereafter and from time to time, the “Credit Agreement”). To date, we have not drawn on the Revolver and we were in compliance with the terms of the Credit Agreement as of June 30, 2022.

Refer to Note 13 contained in our Annual Report on Form 10-K for the year ended December 31, 2021 for further details regarding the Credit Agreement and its key terms.

Unsecured Senior Notes

As of June 30, 2022 and December 31, 2021, we had $3.7 billion of gross unsecured senior notes outstanding. A summary of our outstanding unsecured senior notes is as follows (amounts in millions):

				At June 30, 2022				At December 31, 2021
Unsecured Senior Notes	Interest Rate	Semi-Annual Interest Payments Due On	Maturity	Principal		Fair Value (Level 2)		Principal		Fair Value (Level 2)
2026 Notes	3.40%	Mar. 15 & Sept. 15	Sept. 2026	$	850	$	837	$	850	$	912
2027 Notes	3.40%	Jun. 15 & Dec. 15	Jun. 2027	400		388		400		430
2030 Notes	1.35%	Mar. 15 & Sept. 15	Sept. 2030	500		402		500		463
2047 Notes	4.50%	Jun. 15 & Dec. 15	Jun. 2047	400		389		400		480
2050 Notes	2.50%	Mar. 15 & Sept. 15	Sept. 2050	1,500		1,029		1,500		1,320
Total gross long-term debt				$	3,650			$	3,650
Unamortized discount and deferred financing costs				(41)				(42)
Total net carrying amount				$	3,609			$	3,608

We were in compliance with the terms of the notes outstanding as of June 30, 2022. As of June 30, 2022, with the exception of our 2026 Notes and 2027 Notes, which are scheduled to mature in September 2026 and June 2027, respectively, no other contractual principal repayments of our long-term debt were due within the next five years.

Refer to Note 13 contained in our Annual Report on Form 10-K for the year ended December 31, 2021 for further details regarding key terms under our indentures that govern our outstanding notes.