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PROVISIONS (Tables)
 12 Months Ended
Dec. 31, 2019
Other provisions [abstract]  
Provisions
 
2019

2018

At January 1

$2,837


$3,096

PERs acquired (divested) during the year
425

—

Closed Sites
 
 
Impact of revisions to expected cash flows recorded in earnings
(75
)
(30
)
Settlements
 
 
    Cash payments
(72
)
(48
)
    Settlement gains
(3
)
(2
)
Accretion
18

13

Operating Sites
 
 
PER revisions in the year
(87
)
(247
)
Settlements
 
 
    Cash payments
(21
)
(18
)
    Settlement gains
(1
)
(1
)
Accretion
57

74

At December 31

$3,078


$2,837

Current portion (note 24)
(156
)
(111
)
 

$2,922


$2,726

 
As at December 31, 2019

As at December 31, 2018

Environmental rehabilitation (“PER”)

$2,922


$2,726

Post-retirement benefits
43

42

Share-based payments
26

26

Other employee benefits
19

22

Other
104

88

 

$3,114


$2,904