Severance Costs

6 Months Ended

Jun. 30, 2018

Restructuring And Related Activities [Abstract]

Severance Costs

8.  Severance Costs

In the first six months of 2018, we recorded severance expense of $39 million and paid severance costs of $34 million as part of our previously announced cost reduction program.  At June 30, 2018, we have accrued severance cost of $11 million (December 31, 2017: $6 million), which we expect to pay in 2018.