|
Reconciliation of Segment Assets (Detail) (USD $)
In Millions, unless otherwise specified |
12 Months Ended | ||
|---|---|---|---|
|
Dec. 31, 2013
|
Dec. 31, 2012
|
Dec. 31, 2011
|
|
| Segment Reporting Information [Line Items] | |||
| Assets | $ 274,098 | $ 225,222 | |
| Plant, property and equipment, net | 88,956 | 88,642 | |
| Capital expenditures | 16,604 | 16,175 | 16,244 |
|
Operating Segments
|
|||
| Segment Reporting Information [Line Items] | |||
| Assets | 231,002 | 227,300 | 233,563 |
| Plant, property and equipment, net | 87,817 | 87,456 | 87,600 |
| Capital expenditures | 15,654 | 15,199 | 15,372 |
|
Operating Segments | Wireless
|
|||
| Segment Reporting Information [Line Items] | |||
| Assets | 146,429 | 142,485 | 147,378 |
| Plant, property and equipment, net | 35,932 | 34,545 | 33,451 |
| Capital expenditures | 9,425 | 8,857 | 8,973 |
|
Operating Segments | Wireline
|
|||
| Segment Reporting Information [Line Items] | |||
| Assets | 84,573 | 84,815 | 86,185 |
| Plant, property and equipment, net | 51,885 | 52,911 | 54,149 |
| Capital expenditures | $ 6,229 | $ 6,342 | $ 6,399 |