Major Classes of Assets and Liabilities of Local Exchange and Related Landline Activities in California, Florida and Texas (Detail) - USD ($) $ in Millions	Jun. 30, 2015	Dec. 31, 2014
Assets held for sale:
Total current assets held for sale	$ 774	$ 552
Goodwill (Note 3)	1,328
Total non-current assets held for sale	9,647
Liabilities related to assets held for sale:
Total current liabilities related to assets held for sale	457
Long-term debt	594
Total non-current liabilities related to assets held for sale	942
Held for Sale
Assets held for sale:
Accounts receivable	437
Prepaid expense and other	68
Total current assets held for sale	505
Plant, property and equipment, net	8,266
Goodwill (Note 3)	1,328
Other assets	53
Total non-current assets held for sale	9,647
Total assets held for sale	10,152
Liabilities related to assets held for sale:
Accounts payable and accrued liabilities	243
Other current liabilities	214
Total current liabilities related to assets held for sale	457
Long-term debt	594
Employee benefit obligations	235
Other liabilities	113
Total non-current liabilities related to assets held for sale	942
Total liabilities related to assets held for sale	$ 1,399