XML 240 R105.htm IDEA: XBRL DOCUMENT v3.19.1
Payroll, staff and employee benefits obligations - Recognized in income and comprehensive income (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2018
Dec. 31, 2017
Dec. 31, 2016
Actuarial (Gains) Losses      
Benefit amounts recognized on Equity $ 12 $ (823) $ 371
Pension benefits      
Employee benefits obligations      
Current service cost 236 263 251
Past service cost (1) 239 (92)
Settlements (12) (1)  
Net interest cost 35 64 66
Benefit amounts recognized on Profit & Loss 258 565 225
Actuarial (Gains) Losses      
Effect of changes in demographic assumptions (1) (16) (56)
Effect of changes in financial assumptions (354) (241) 1,008
Effect of experience adjustments (17) (193) (190)
Actual return on plan assets (excluding interest income) 424 (344) (421)
Effect of asset ceiling (11) 7 (7)
Benefit amounts recognized on Equity 41 (787) 334
Total benefit amounts recognized on comprehensive income 299 (222) 559
Other benefits      
Employee benefits obligations      
Current service cost 14 16 13
Past service cost (2) 12  
Net interest cost 17 17 21
Benefit amounts recognized on Profit & Loss 29 45 34
Actuarial (Gains) Losses      
Effect of changes in demographic assumptions (21) 3 (7)
Effect of changes in financial assumptions (3) (5) 48
Effect of experience adjustments (5) (34) (4)
Benefit amounts recognized on Equity $ (29) (36) 37
Total benefit amounts recognized on comprehensive income   $ 9 $ 71