Deconsolidation of subsidiary (Tables)

12 Months Ended

Dec. 31, 2012

Deconsolidation of subsidiary [Abstract]

Re-measurement of any retained equity interest in former subsidiary at fair value

A change in control is considered a re-measurement event; therefore, upon losing control of Archer, we re-measured at fair value any retained equity interest in the former subsidiary.

(In US$ millions)	December 31, 2011
Fair value of the consideration received		-
Fair value of the retained non-controlling investment		711
The carrying amount of non-controlling interest in Archer		330
The carrying amount of Archer's assets and liabilities		(564)
Accumulated translation adjustments recycled from OCI into profit & loss		70
Accumulated actuarial loss recycled from OCI into profit & loss		(7)
Total gain		540