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Debt (Tables)

3 Months Ended

Mar. 31, 2020

Debt

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


		Principal amount							Carrying amount
		March 31,			December 31,				March 31,			December 31,
		2020			2019				2020			2019
6.50% Senior Notes due November 2020		$	198		$	206			$	198		$	206
6.375% Senior Notes due December 2021			184			222				184			221
5.52% Senior Secured Notes due May 2022			178			200				176			198
3.80% Senior Notes due October 2022			187			190				186			189
0.50% Exchangeable Bonds due January 2023			863			863				862			862
5.375% Senior Secured Notes due May 2023			519			525				513			518
9.00% Senior Notes due July 2023			—			714				—			701
5.875% Senior Secured Notes due January 2024			626			667				616			656
7.75% Senior Secured Notes due October 2024			420			420				412			412
6.25% Senior Secured Notes due December 2024			437			437				430			430
6.125% Senior Secured Notes due August 2025			501			534				492			525
7.25% Senior Notes due November 2025			750			750				738			737
7.50% Senior Notes due January 2026			750			750				743			743
6.875% Senior Secured Notes due February 2027			550			550				541			541
8.00% Senior Notes due February 2027			750			—				743			—
7.45% Notes due April 2027			88			88				86			86
8.00% Debentures due April 2027			57			57				57			57
7.00% Notes due June 2028			300			300				306			306
7.50% Notes due April 2031			588			588				585			585
6.80% Senior Notes due March 2038			1,000			1,000				992			991
7.35% Senior Notes due December 2041			300			300				297			297
Total debt			9,246			9,361				9,157			9,261

Less debt due within one year
6.50% Senior Notes due November 2020			198			206				198			206
5.52% Senior Secured Notes due May 2022			89			88				88			87
3.80% Senior Notes due October 2022			5			—				5			—
5.375% Senior Secured Notes due May 2023			32			16				29			14
5.875% Senior Secured Notes due January 2024			83			83				79			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
Total debt due within one year			595			581				581			568
Total long-term debt		$	8,651		$	8,780			$	8,576		$	8,693

Scheduled maturities of debt


		Total
Years ending March 31,
2021		$	595
2022			606
2023			1,466
2024			1,020
2025			516
Thereafter			5,043
Total principal amount of debt			9,246
Total debt-related balances, net			(89)
Total carrying amount of debt		$	9,157

Schedule of debt repurchases


					Three months
					ended
					March 31,
					2020
6.50% Senior Notes due November 2020					$	8
6.375% Senior Notes due December 2021						38
3.80% Senior Notes due October 2022						3
5.375% Senior Secured Notes due May 2023						6
Aggregate principal amount retired					$	55

Aggregate cash payment					$	46
Aggregate net gain					$	8

Schedule of tender offers


		Three months
		ended
		March 31,
		2019
6.50% Senior Notes due November 2020		$	57
6.375% Senior Notes due December 2021			63
3.80% Senior Notes due October 2022			190
9.00% Senior Notes due July 2023			200
Aggregate principal amount retired		$	510

Aggregate cash payment		$	522
Aggregate net loss		$	(18)