Reimbursement of Call Penalties

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- Definition

Write off of Premiums, Discounts and Issuance Costs

+ References

No definition available.

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- Definition

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

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
-SubTopic 20
-Section 50
-Paragraph 1B
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=123466505&loc=SL123495323-112611

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.22(a)(1))
-URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

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- Definition

Percentage price of original principal amount of debt at which debt can be redeemed by the issuer.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 470
-Section 50
-Paragraph 3
-Subparagraph e
-URI http://asc.fasb.org/extlink&oid=123599511&loc=d3e64711-112823

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- Definition

Face (par) amount of the original debt instrument that was repurchased.

+ References

No definition available.

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Debt - Note Redemption (Details) - USD ($)	12 Months Ended
Debt - Note Redemption (Details) - USD ($)	Dec. 31, 2021	Aug. 23, 2021	Mar. 23, 2021
Debt Instrument [Line Items]
Principal Amount	$ 1,234,000,000
Write off of Premiums, Discounts and Issuance Costs	0
Redemption Premium	0
Senior Notes \| Affiliates
Debt Instrument [Line Items]
Principal Amount	1,000,000,000
Write off of Premiums, Discounts and Issuance Costs	4,000,000
Redemption Premium	$ 22,000,000
6.500% Senior Notes due 2026
Debt Instrument [Line Items]
Interest rate, stated percentage	6.50%		6.50%
6.500% Senior Notes due 2026 \| Senior Notes
Debt Instrument [Line Items]
Principal Amount	$ 2,000,000,000
Write off of Premiums, Discounts and Issuance Costs	36,000,000
Redemption Premium	$ 65,000,000
Redemption Price (as a percent)	103.25%
6.000% Senior Notes due 2023
Debt Instrument [Line Items]
Interest rate, stated percentage	6.00%
6.000% Senior Notes due 2023 \| Senior Notes
Debt Instrument [Line Items]
Principal Amount	$ 1,300,000,000
Write off of Premiums, Discounts and Issuance Costs	10,000,000
Redemption Premium	$ 0
Redemption Price (as a percent)	100.00%
6.000% Senior Notes due 2024
Debt Instrument [Line Items]
Interest rate, stated percentage	6.00%
6.000% Senior Notes due 2024 \| Senior Notes
Debt Instrument [Line Items]
Principal Amount	$ 1,000,000,000
Write off of Premiums, Discounts and Issuance Costs	9,000,000
Redemption Premium	$ 0
Redemption Price (as a percent)	100.00%
5.125% Senior Notes due 2025
Debt Instrument [Line Items]
Interest rate, stated percentage	5.125%
5.125% Senior Notes due 2025 \| Senior Notes
Debt Instrument [Line Items]
Principal Amount	$ 500,000,000
Write off of Premiums, Discounts and Issuance Costs	3,000,000
Redemption Premium	$ 6,000,000
Redemption Price (as a percent)	101.281%
4.500% Senior Notes due 2026
Debt Instrument [Line Items]
Interest rate, stated percentage	4.50%
4.500% Senior Notes due 2026 \| Affiliates
Debt Instrument [Line Items]
Interest rate, stated percentage	4.50%
4.500% Senior Notes due 2026 \| Senior Notes
Debt Instrument [Line Items]
Principal Amount	$ 1,000,000,000
Write off of Premiums, Discounts and Issuance Costs	5,000,000
Redemption Premium	$ 23,000,000
Redemption Price (as a percent)	102.25%
4.500% Senior Notes due 2026 \| Senior Notes \| Affiliates
Debt Instrument [Line Items]
Interest rate, stated percentage		4.50%
Principal Amount	$ 1,000,000,000	$ 1,000,000,000
Write off of Premiums, Discounts and Issuance Costs	4,000,000
Redemption Premium	$ 22,000,000
Redemption Price (as a percent)	102.25%
7.250% Senior Notes due 2021 \| Senior Notes
Debt Instrument [Line Items]
Interest rate, stated percentage	7.25%
Principal Amount	$ 2,250,000,000
Write off of Premiums, Discounts and Issuance Costs	0
Redemption Premium	$ 0
11.500% Senior Notes due 2021 \| Sprint
Debt Instrument [Line Items]
Interest rate, stated percentage	11.50%
11.500% Senior Notes due 2021 \| Senior Notes
Debt Instrument [Line Items]
Principal Amount	$ 1,000,000,000
Write off of Premiums, Discounts and Issuance Costs	0
Redemption Premium	0
Total Senior Notes to third parties redeemed
Debt Instrument [Line Items]
Principal Amount	9,050,000,000
Write off of Premiums, Discounts and Issuance Costs	63,000,000
Redemption Premium	$ 94,000,000
3.360% Series 2016-1 A-1 Notes due 2021 \| Sprint
Debt Instrument [Line Items]
Interest rate, stated percentage	3.36%
3.360% Series 2016-1 A-1 Notes due 2021 \| Senior Notes
Debt Instrument [Line Items]
Interest rate, stated percentage	3.36%
Principal Amount	$ 656,000,000
Write off of Premiums, Discounts and Issuance Costs	0
Redemption Premium	$ 0
4.738% Series 2018-1 A-1 Notes due 2025 \| Sprint
Debt Instrument [Line Items]
Interest rate, stated percentage	4.738%
4.738% Series 2018-1 A-1 Notes due 2025 \| Senior Notes
Debt Instrument [Line Items]
Interest rate, stated percentage	4.738%
Principal Amount	$ 394,000,000
Write off of Premiums, Discounts and Issuance Costs	0
Redemption Premium	0
Other debt
Debt Instrument [Line Items]
Principal Amount	184,000,000
Write off of Premiums, Discounts and Issuance Costs	0
Redemption Premium	$ 0