Debt (Tables)

9 Months Ended

Sep. 30, 2020

Debt

Debt, net of unamortized discounts, premiums and fair value adjustments

	Principal amount				Carrying amount
	September 30,		December 31,		September 30,		December 31,
	2020		2019		2020		2019
6.50% Senior Notes due November 2020	$	191	$	206	$	191	$	206
6.375% Senior Notes due December 2021		116		222		116		221
5.52% Senior Secured Notes due May 2022		134		200		133		198
3.80% Senior Notes due October 2022		37		190		37		189
0.50% Exchangeable Senior Bonds due January 2023		463		863		462		862
5.375% Senior Secured Notes due May 2023		504		525		498		518
9.00% Senior Notes due July 2023		—		714		—		701
5.875% Senior Secured Notes due January 2024		585		667		576		656
7.75% Senior Secured Notes due October 2024		390		420		383		412
6.25% Senior Secured Notes due December 2024		406		437		400		430
6.125% Senior Secured Notes due August 2025		468		534		460		525
7.25% Senior Notes due November 2025		543		750		535		737
7.50% Senior Notes due January 2026		569		750		565		743
2.50% Senior Guaranteed Exchangeable Bonds due January 2027		238		—		277		—
11.50% Senior Guaranteed Notes due January 2027		687		—		1,139		—
6.875% Senior Secured Notes due February 2027		550		550		542		541
8.00% Senior Notes due February 2027		612		—		606		—
7.45% Notes due April 2027		52		88		51		86
8.00% Debentures due April 2027		22		57		22		57
7.00% Notes due June 2028		261		300		266		306
7.50% Notes due April 2031		396		588		394		585
6.80% Senior Notes due March 2038		610		1,000		605		991
7.35% Senior Notes due December 2041		177		300		176		297
Total debt		8,011		9,361		8,434		9,261
Less debt due within one year
6.50% Senior Notes due November 2020		191		206		191		206
5.52% Senior Secured Notes due May 2022		92		88		91		87
5.375% Senior Secured Notes due May 2023		31		16		29		14
5.875% Senior Secured Notes due January 2024		83		83		80		79
7.75% Senior Secured Notes due October 2024		60		60		58		58
6.25% Senior Secured Notes due December 2024		62		62		60		60
6.125% Senior Secured Notes due August 2025		66		66		64		64
2.50% Senior Guaranteed Exchangeable Bonds due January 2027		—		—		6		—
11.50% Senior Guaranteed Notes due January 2027		—		—		61		—
Total debt due within one year		585		581		640		568
Total long-term debt	$	7,426	$	8,780	$	7,794	$	8,693

Scheduled maturities of debt

	Principal		Other
	installments		installments		Total
Twelve months ending September 30,
2021	$	585	$	67	$	652
2022		561		76		637
2023		1,249		76		1,325
2024		608		77		685
2025		593		77		670
Thereafter		4,415		117		4,532
Total installments of debt	$	8,011	$	490		8,501
Total debt-related balances, net						(67)
Total carrying amount of debt					$	8,434

Schedule of debt retirements

	Nine months ended September 30,
	2020								2019
	Exchanged		Redeemed		Repurchased		Total		Tendered		Repurchased		Total
6.50% Senior Notes due November 2020	$	—	$	—	$	15	$	15	$	57	$	21	$	78
6.375% Senior Notes due December 2021		37		—		68		105		63		41		104
3.80% Senior Notes due October 2022		136		—		16		152		190		22		212
0.50% Exchangeable Senior Bonds due January 2023		397		—		4		401		—		—		—
5.375% Senior Secured Notes due May 2023		—		—		21		21		—		—		—
9.00% Senior Notes due July 2023		—		714		—		714		200		297		497
7.25% Senior Notes due November 2025		207		—		—		207		—		—		—
7.50% Senior Notes due January 2026		181		—		—		181		—		—		—
8.00% Senior Notes due February 2027		138		—		—		138		—		—		—
7.45% Notes due April 2027		35		—		—		35		—		—		—
8.00% Debentures due April 2027		35		—		—		35		—		—		—
7.00% Notes due June 2028		39		—		—		39		—		—		—
7.50% Notes due April 2031		192		—		—		192		—		—		—
6.80% Senior Notes due March 2038		390		—		—		390		—		—		—
7.35% Senior Notes due December 2041		123		—		—		123		—		—		—
Aggregate principal amount restructured or retired	$	1,910	$	714	$	124	$	2,748	$	510	$	381	$	891
Aggregate cash payment	$	9	$	767	$	91	$	867	$	522	$	395	$	917
Aggregate principal amount of debt issued in exchanges	$	925	$	—	$	—	$	925	$	—	$	—	$	—
Aggregate net gain (loss), three months ended September 30,	$	428	$	—	$	21	$	449	$	—	$	(12)	$	(12)
Aggregate net gain (loss), nine months ended September 30,	$	428	$	(65)	$	33	$	396	$	(18)	$	(21)	$	(39)