
	At March 31,		At December 31,
	2022		2021
Fixed Rate Secured:
4.10% Senior Notes due June 1, 2022 (a)	$	-	$	400
7.00% Debentures due September 1, 2022		482		482
2.75% Senior Notes due June 1, 2024		500		500
2.95% Senior Notes due April 1, 2025		350		350
0.55% Senior Notes due October 1, 2025		450		450
3.86% Senior Notes Series A, due December 3, 2025		174		174
3.86% Senior Notes Series B, due January 14, 2026		38		38
3.70% Senior Notes due November 15, 2028		650		650
5.75% Senior Notes due March 15, 2029		318		318
2.75% Senior Notes due May 15, 2030		700		700
7.00% Senior Notes due May 1, 2032		494		494
7.25% Senior Notes due January 15, 2033		323		323
7.50% Senior Notes due September 1, 2038		300		300
5.25% Senior Notes due September 30, 2040		475		475
4.55% Senior Notes due December 1, 2041		400		400
5.30% Senior Notes due June 1, 2042		348		348
3.75% Senior Notes due April 1, 2045		550		550
3.80% Senior Notes due September 30, 2047		325		325
4.10% Senior Notes due November 15, 2048		450		450
3.80% Senior Notes due June 1, 2049		500		500
3.10% Senior Notes due September 15, 2049		700		700
3.70% Senior Notes due May 15, 2050		400		400
2.70% Senior Notes due November 15, 2051		500		500
5.35% Senior Notes due October 1, 2052		300		300
Fixed rate secured long-term debt		9,727		10,127
Variable Rate Unsecured:
Term loan credit agreement maturing April 29, 2023		1,185		-
Variable rate unsecured long-term debt		1,185		-
Total long-term debt		10,912		10,127
Unamortized discount and debt issuance costs		(93)		(95)
Less amount due currently		(482)		(882)
Long-term debt, less amounts due currently	$	10,337	$	9,150

(a)In March 2022, we redeemed in full the $400 million aggregate principal amount of the notes that were to mature on June 1, 2022. See “2022 Notes Redemption” below for more information.