Goodwill - Changes in Carrying Amount of Goodwill (Detail) (USD $)
In Millions, unless otherwise specified |
3 Months Ended |
---|---|
Mar. 31, 2014
|
|
Goodwill [Line Items] | |
Goodwill, Beginning Balance | $ 14,706 |
Acquisitions | 138 |
Reallocation | 0 |
Impact of changes in exchange rates and other | (12) |
Goodwill, Ending Balance | 14,832 |
Reservoir Characterization
|
|
Goodwill [Line Items] | |
Goodwill, Beginning Balance | 3,737 |
Acquisitions | 14 |
Reallocation | 83 |
Impact of changes in exchange rates and other | (5) |
Goodwill, Ending Balance | 3,829 |
Drilling
|
|
Goodwill [Line Items] | |
Goodwill, Beginning Balance | 8,315 |
Reallocation | (83) |
Impact of changes in exchange rates and other | (3) |
Goodwill, Ending Balance | 8,229 |
Production
|
|
Goodwill [Line Items] | |
Goodwill, Beginning Balance | 2,654 |
Acquisitions | 124 |
Impact of changes in exchange rates and other | (4) |
Goodwill, Ending Balance | $ 2,774 |