Operating leases (Tables)

12 Months Ended

Dec. 31, 2018

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Summary of Non-Cancelable Operating Leases are Payable and Receivable

Non-cancelable operating leases are payable and receivable as follows:

	2018
Million US dollar	Lessee			Sublease		Lessor		Net lease obligations
Within one year		(475	)		149		3		(323	)
Between one and five years		(1 237	)		451		9		(777	)
After five years		(771	)		211		6		(554	)
Total		(2 483	)		811		18		(1 654	)
	2017
Million US dollar	Lessee			Sublease		Lessor		Net lease obligations
Within one year		(210	)		127		2		(181	)
Between one and five years		(1 009	)		425		7		(577	)
After five years		(781	)		211		4		(566	)
Total		(2 100	)		763		13		(1 324	)