Current portion before unamortized (discount) premium and debt issuance costs, of long-term debt.

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Non current portion before unamortized (discount) premium and debt issuance costs, of long-term debt.

+ References

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- Definition

Amount of short-term and long-term debt and lease obligation.

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No definition available.

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Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition

Contractual interest rate for funds borrowed, under the debt agreement.

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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 942
-SubTopic 210
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- Definition

Amount of long-term debt and lease obligation, classified as noncurrent.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 942
-SubTopic 210
-Name Accounting Standards Codification
-Section S45
-Paragraph 1
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- Definition

Amount of long-term debt and lease obligation, classified as current.

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-SubTopic 10
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Debt (Details) - USD ($) $ in Millions	Sep. 30, 2026	Mar. 31, 2026	Mar. 30, 2026	Dec. 31, 2025
Principal amount
Total principal amount of debt	$ 4,975			$ 5,686
Debt due within one year	467			458
Long-term debt	4,508			5,228
Carrying amount
Total debt	5,018			5,657
Debt due within one year	460			445
Long-term debt	4,558			5,212
7.45% Notes due April 2027
Principal amount
Total principal amount of debt	52			52
Debt due within one year	52
Carrying amount
Total debt	52			52
Debt due within one year	$ 52
Debt instrument interest rate stated percentage	7.45%
8.00% Debentures due April 2027
Principal amount
Total principal amount of debt	$ 22			22
Debt due within one year	22
Carrying amount
Total debt	22			22
Debt due within one year	$ 22
Debt instrument interest rate stated percentage	8.00%
4.50% Shipyard Loans due September 2027
Principal amount
Total principal amount of debt	$ 111			209
Debt due within one year	111			136
Carrying amount
Total debt	108			202
Debt due within one year	$ 108			129
Debt instrument interest rate stated percentage	4.50%
8.375% Senior Secured Notes due February 2028
Principal amount
Total principal amount of debt				425
Debt due within one year				135
Carrying amount
Total debt				421
Debt due within one year				133
Debt instrument interest rate stated percentage	8.375%	8.375%
7.00% Notes due June 2028
Principal amount
Total principal amount of debt	$ 209			209
Carrying amount
Total debt	$ 210			210
Debt instrument interest rate stated percentage	7.00%
8.00% Senior Secured Notes due September 2028
Principal amount
Total principal amount of debt	$ 165			235
Debt due within one year	165			70
Carrying amount
Total debt	164			233
Debt due within one year	$ 164			69
Debt instrument interest rate stated percentage	8.00%
8.25% Senior Notes due May 2029
Principal amount
Total principal amount of debt	$ 900			900
Carrying amount
Total debt	$ 891			889
Debt instrument interest rate stated percentage	8.25%
4.625% Senior Guaranteed Exchangeable Bonds due September 2029
Principal amount
Total principal amount of debt	$ 259			259
Carrying amount
Total debt	$ 348			292
Debt instrument interest rate stated percentage	4.625%		4.625%
8.75% Senior Secured Notes due February 2030
Principal amount
Total principal amount of debt	$ 763			881
Debt due within one year	117			117
Carrying amount
Total debt	753			868
Debt due within one year	$ 114			114
Debt instrument interest rate stated percentage	8.75%
7.50% Notes due April 2031
Principal amount
Total principal amount of debt	$ 396			396
Carrying amount
Total debt	$ 395			395
Debt instrument interest rate stated percentage	7.50%
8.50% Senior Notes due May 2031
Principal amount
Total principal amount of debt	$ 900			900
Carrying amount
Total debt	$ 889			888
Debt instrument interest rate stated percentage	8.50%
7.875% Senior Guaranteed Notes due October 2032
Principal amount
Total principal amount of debt	$ 500			500
Carrying amount
Total debt	$ 493			493
Debt instrument interest rate stated percentage	7.875%
6.80% Senior Notes due March 2038
Principal amount
Total principal amount of debt	$ 610			610
Carrying amount
Total debt	$ 606			605
Debt instrument interest rate stated percentage	6.80%
7.35% Senior Notes due December 2041
Principal amount
Total principal amount of debt	$ 88			88
Carrying amount
Total debt	$ 87			$ 87
Debt instrument interest rate stated percentage	7.35%