Multiclient Seismic Data - Multiclient Seismic Data Table (Detail) $ in Millions	6 Months Ended
Jun. 30, 2015 USD ($)
Multiclient Seismic Data [Abstract]
Opening balance	$ 793
Capitalized in period	221
Charged to expense	(101)
Ending balance	$ 913

Capitalized costs directly incurred in acquiring and processing of seismic surveys that are licensed on a nonexclusive basis, net of amortization.

No definition available.

Name:	slb_MulticlientSeismicData
Namespace Prefix:	slb_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant