Conversion Of Stock, Ratio

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- Definition

Payout Range, Percent Of Target Units

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- Definition

Performance Metric Percent

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- Definition

Share-Based Compensation Arrangement By Share Based Payment Award, Measurement Period

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Amount of expense for award under share-based payment arrangement. Excludes amount capitalized.

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- Definition

Amount of cost not yet recognized for nonvested award under share-based payment arrangement.

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Weighted-average period over which cost not yet recognized is expected to be recognized for award under share-based payment arrangement, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

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- Definition

Period over which grantee's right to exercise award under share-based payment arrangement is no longer contingent on satisfaction of service or performance condition, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. Includes, but is not limited to, combination of market, performance or service condition.

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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.

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The difference between the maximum number of shares (or other type of equity) authorized for issuance under the plan (including the effects of amendments and adjustments), and the sum of: 1) the number of shares (or other type of equity) already issued upon exercise of options or other equity-based awards under the plan; and 2) shares (or other type of equity) reserved for issuance on granting of outstanding awards, net of cancellations and forfeitures, if applicable.

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- Definition

Number of options outstanding, including both vested and non-vested options.

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Stock Plans (Narrative) (Details) - USD ($) $ in Millions	3 Months Ended
Stock Plans (Narrative) (Details) - USD ($) $ in Millions	Mar. 31, 2023	Mar. 31, 2022	Mar. 31, 2021
Frontier Communications Parent, Inc. 2021 Management Incentive Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares available for grant under the plan (in shares)	15,600,000
Unvested outstanding	4,279,000
Restricted Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period	3 years	3 years	3 years
Remaining unrecognized compensation cost associated with unvested restricted stock awards	$ 70
Weighted average period over which unvested restricted stock awards unrecognized compensation cost is expected to be recognized (in years)	2 years
Compensation expense	$ 8	$ 9
Performance Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Measurement period	3 years
Performance metric percent	33.30%
Conversion of stock, ratio	1
Compensation expense	$ 16	$ 6
Minimum [Member] \| Performance Stock [Member] \| PSUs 2021 [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Payout range, percent of target units	0.00%
Minimum [Member] \| Performance Stock [Member] \| PSUs 2022 And 2023 [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Payout range, percent of target units	0.00%
Maximum [Member] \| Performance Stock [Member] \| PSUs 2021 [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Payout range, percent of target units	300.00%
Maximum [Member] \| Performance Stock [Member] \| PSUs 2022 And 2023 [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Payout range, percent of target units	200.00%