Segment Information (Tables)

6 Months Ended

Jun. 30, 2011

Segment Information

Summary of segment information

	Three Months Ended June 30,				Six Months EndedJune 30,
	2011		2010		2011		2010
Revenue from external customers:
Communications	$	913	$	892	$	1,827	$	1,792
Coal Mining	19		16		34		26
	$	932	$	908	$	1,861	$	1,818
Adjusted EBITDA:
Communications	$	226	$	209	$	451	$	411
Coal Mining	$	—	$	—	$	—	$	(2	)

Schedule of breakout of Communications segment revenue by service

	Three Months Ended June 30,				Six Months Ended June 30,
	2011		2010		2011		2010
Communications Services:
Core Network Services Revenue	$	744	$	699	$	1,473	$	1,400
Wholesale Voice Services Revenue	151		163		315		328
Other Communications Revenue	18		30		39		64
Total Communications Revenue	$	913	$	892	$	1,827	$	1,792

Reconciliation of net loss to Adjusted EBITDA by operating segment

Three Months Ended June 30, 2011

	Communications			Coal Mining
Net loss	$	(178	)	$	(1	)
Income tax expense	3			—
Total other (income) expense	178			—
Depreciation and amortization expense	206			1
Non-cash compensation expense	17			—
Adjusted EBITDA	$	226		$	—
Total Net Loss for reportable segments				$	(179	)
Unallocated corporate expense				(2		)
Consolidated Net Loss				$	(181	)

Six Months Ended June 30, 2011

	Communications			Coal Mining
Net loss	$	(379	)	$	(2	)
Income tax expense	30			—
Total other (income) expense	349			—
Depreciation and amortization expense	409			2
Non-cash compensation expense	42			—
Adjusted EBITDA	$	451		$	—
Total Net Loss for reportable segments				$	(381	)
Unallocated corporate expense				(5		)
Consolidated Net Loss				$	(386	)

Three Months Ended June 30, 2010

	Communications			Coal Mining
Net loss	$	(167	)	$	(1	)
Income tax expense	—			—
Total other (income) expense	140			—
Depreciation and amortization expense	222			1
Non-cash compensation expense	14			—
Adjusted EBITDA	$	209		$	—
Total Net Loss for reportable segments				$	(168	)
Unallocated corporate income				(1		)
Consolidated Net Loss				$	(169	)

Six Months Ended June 30, 2010

	Communications			Coal Mining
Net loss	$	(402	)	$	(3	)
Income tax expense	1			—
Total other (income) expense	336			(1		)
Depreciation and amortization expense	446			2
Non-cash compensation expense	30			—
Adjusted EBITDA	$	411		$	(2	)
Total Net Loss for reportable segments				$	(405	)
Unallocated corporate expense				(2		)
Consolidated Net Loss				$	(407	)