CONSOLIDATED BALANCE SHEETS (Unaudited) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2013	Dec. 31, 2012
Current assets:
Cash and cash equivalents	$ 548,630	$ 1,326,532
Accounts receivable, less allowances of $85,494 and $93,267, respectively	486,495	533,704
Restricted cash	9,260	15,408
Prepaid expenses	69,954	66,972
Income taxes and other current assets	162,602	144,587
Total current assets	1,276,941	2,087,203
Restricted cash	11,611	27,252
Property, plant and equipment, net	7,361,756	7,504,896
Goodwill	6,337,719	6,337,719
Other intangibles, net	1,368,935	1,542,739
Other assets	243,104	233,822
Total assets	16,600,066	17,733,631
Current liabilities:
Long-term debt due within one year	257,905	560,550
Accounts payable	271,942	338,148
Advanced billings	140,005	146,317
Accrued other taxes	65,337	66,342
Accrued interest	188,548	209,327
Other current liabilities	224,423	232,836
Total current liabilities	1,148,160	1,553,520
Deferred income taxes	2,317,113	2,357,210
Pension and other postretirement benefits	1,045,978	1,055,058
Other liabilities	252,888	266,625
Long-term debt	7,900,922	8,381,947
Shareholders' equity of Frontier:
Common stock, $0.25 par value (1,750,000,000 authorized shares, 1,000,523,000 and 998,410,000 outstanding, respectively, and 1,027,986,000 issued, at June 30, 2013 and December 31, 2012)	256,997	256,997
Additional paid-in capital	4,408,652	4,639,563
Retained earnings	72,885	63,205
Accumulated other comprehensive loss, net of tax	(470,084)	(483,576)
Treasury stock	(333,445)	(368,593)
Total shareholders' equity of Frontier	3,935,005	4,107,596
Noncontrolling interest in a partnership	0	11,675
Total equity	3,935,005	4,119,271
Total liabilities and equity	$ 16,600,066	$ 17,733,631