Total Debt (Notes)

3 Months Ended

Mar. 31, 2024

A summary of our debt as of March 31, 2024 and December 31, 2023 is as follows:


	March 31, 2024						December 31, 2023
	Principal Amount		Carrying Value		Fair Value		Principal Amount		Carrying Value		Fair Value
Senior unsecured notes	$	27,250	$	27,171	$	23,528	$	27,250	$	27,168	$	24,750



Senior secured notes and debentures(a)	55,909		56,228		46,822		57,925		58,250		50,742



Credit facilities(b)	14,618		14,566		14,397		12,413		12,359		12,237
	$	97,777	$	97,965	$	84,747	$	97,588	$	97,777	$	87,729

(a)Includes the Company's £625 million fixed-rate British pound sterling denominated notes (the “Sterling Notes”) (remeasured at $789 million and $797 million as of March 31, 2024 and December 31, 2023, respectively, using the exchange rate at the respective dates) and the Company's £650 million aggregate principal amount of Sterling Notes (remeasured at $820 million and $828 million as of March 31, 2024 and December 31, 2023, respectively, using the exchange rate at the respective dates).

(b)The Company has availability under the Charter Operating credit facilities of approximately $2.9 billion as of March 31, 2024.

The estimated fair value of the Company’s senior unsecured and secured notes and debentures as of March 31, 2024 and December 31, 2023 is based on quoted market prices in active markets and is classified within Level 1 of the valuation hierarchy, while the estimated fair value of the Company’s credit facilities is based on quoted market prices in inactive markets and is classified within Level 2.