CONSOLIDATED BALANCE SHEETS (Unaudited) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2013	Dec. 31, 2012
Current assets:
Cash and cash equivalents	$ 875,909	$ 1,326,532
Accounts receivable, less allowances of $96,164 and $93,267, respectively	480,746	533,704
Restricted cash	22,126	15,408
Prepaid expenses	65,762	66,972
Income taxes and other current assets	103,612	144,587
Total current assets	1,548,155	2,087,203
Restricted cash	20,545	27,252
Property, plant and equipment, net	7,417,746	7,504,896
Goodwill	6,337,719	6,337,719
Other intangibles, net	1,455,956	1,542,739
Other assets	229,441	233,822
Total assets	17,009,562	17,733,631
Current liabilities:
Long-term debt due within one year	57,899	560,550
Accounts payable	219,009	338,148
Advanced billings	143,768	146,317
Accrued other taxes	74,003	66,342
Accrued interest	208,114	209,327
Other current liabilities	213,144	232,836
Total current liabilities	915,937	1,553,520
Deferred income taxes	2,335,286	2,357,210
Pension and other postretirement benefits	1,054,246	1,055,058
Other liabilities	264,982	266,625
Long-term debt	8,368,729	8,381,947
Shareholders' equity of Frontier:
Common stock, $0.25 par value (1,750,000,000 authorized shares, 998,131,000 and 998,410,000 outstanding, respectively, and 1,027,986,000 issued, at March 31, 2013 and December 31, 2012)	256,997	256,997
Additional paid-in capital	4,536,657	4,639,563
Retained earnings	111,345	63,205
Accumulated other comprehensive loss, net of tax	(476,830)	(483,576)
Treasury stock	(365,705)	(368,593)
Total shareholders' equity of Frontier	4,062,464	4,107,596
Noncontrolling interest in a partnership	7,918	11,675
Total equity	4,070,382	4,119,271
Total liabilities and equity	$ 17,009,562	$ 17,733,631