Document and Entity Information - USD ($) shares in Thousands, $ in Millions	12 Months Ended
	Dec. 31, 2022	Feb. 21, 2023	Jun. 30, 2022
Document and Entity Information [Abstract]
Document Type	10-K
Amendment Flag	false
Document Annual Report	true
Document Fiscal Period Focus	FY
Current Fiscal Year End Date	--12-31
Document Fiscal Year Focus	2022
Document Period End Date	Dec. 31, 2022
Document Transition Report	false
Entity File Number	001-11001
Entity Registrant Name	FRONTIER COMMUNICATIONS PARENT, INC.
Entity Incorporation, State or Country Code	DE
Entity Tax Identification Number	06-0619596
Entity Address, Address Line One	401 Merritt 7
Entity Address, City or Town	Norwalk
Entity Address, State or Province	CT
Entity Address, Postal Zip Code	06851
City Area Code	203
Local Phone Number	614-5600
Title of 12(b) Security	Common Stock, par value $0.01 per share
Trading Symbol	FYBR
Security Exchange Name	NASDAQ
Entity Well-known Seasoned Issuer	No
Entity Voluntary Filers	No
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
ICFR Auditor Attestation Flag	true
Entity Filer Category	Large Accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Public Float			$ 5,770
Entity Common Stock, Shares Outstanding		245,040
Documents Incorporated By Reference	DOCUMENT INCORPORATED BY REFERENCEPortions of the proxy statement for the Registrant’s 2023 Annual Meeting of Stockholders are incorporated by reference in Part III of this Annual Report on Form 10-K.
Entity Central Index Key	0000020520
Auditor Name	KPMG LLP
Auditor Location	Stamford, Connecticut
Auditor Firm ID	185