Consolidated Balance Sheets - USD ($) $ in Millions	Sep. 30, 2025	Dec. 31, 2024
Current assets:
Cash and cash equivalents	$ 336	$ 750
Accounts receivable, less allowances of $55 and $66, respectively	441	379
Prepaid expenses	89	67
Income taxes and other current assets	97	64
Total current assets	963	1,260
Property, plant and equipment, net	17,345	15,678
Other intangibles, net	3,023	3,264
Other assets	296	412
Total assets	21,627	20,614
Current liabilities:
Long-term debt due within one year	10	10
Accounts payable and accrued liabilities	1,249	1,033
Advanced billings	201	180
Accrued other taxes	128	124
Accrued interest	187	128
Pension and other postretirement benefits	39	39
Other current liabilities	1,347	775
Total current liabilities	3,161	2,289
Deferred income taxes	560	609
Pension and other postretirement benefits	476	591
Other liabilities	723	633
Long-term debt	12,008	11,551
Total liabilities	16,928	15,673
Equity:
Common stock, $0.01 par value (1,750,000 authorized shares, 250,336 and 249,695 shares issued and outstanding at September 30, 2025 and December 31, 2024, respectively)	3	3
Additional paid-in capital	4,334	4,299
Retained earnings	299	562
Accumulated other comprehensive income, net of tax	63	77
Total equity	4,699	4,941
Total liabilities and equity	$ 21,627	$ 20,614

Amount of advanced billings, current.

No definition available.

Name:	fybr_ContractWithCustomerLiabilityAdvancedBillingsCurrent
Namespace Prefix:	fybr_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Sum of the carrying values as of the balance sheet date of obligations incurred through that date and due within one year (or the operating cycle, if longer), including liabilities incurred (and for which invoices have typically been received) and payable to vendors for goods and services received, taxes, interest, rent and utilities, accrued salaries and bonuses, payroll taxes and fringe benefits.