Commitments and contingencies (Tables)

12 Months Ended

Dec. 31, 2018

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Summary of Commitments through Purchase and Sale Transactions of Investments

	2018				2017
	Purchase		Sale		Purchase		Sale
Real estate		156		66		196		39
Mortgage loans		3,187		67		3,152		69
Private loans		1,224		-		705		-
Other		2,222		-		2,373		-

Summary of Future Minimum Lease Payments under Non-cancellable Operating Leases

Future lease payments

	2018								2017
Future lease payments	Not later than 1 year		1-5 years		Later than 5 years		Not later than 1 year		1-5 years		Later than 5 years
Operating lease obligations		73		144		169		74		143		201
Operating lease rights		50		127		52		53		136		58

Summary of Other Commitments and Contingencies

Other commitments and contingencies

	2018	2017
Guarantees	437	483
Standby letters of credit	12	12
Share of contingent liabilities incurred in relation to interests in joint ventures	49	39
Other guarantees	14	16
Other commitments and contingent liabilities	7	32