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Schedule II - Valuation and Qualifying Accounts
 12 Months Ended
Dec. 31, 2018
SEC Schedule, 12-09, Valuation and Qualifying Accounts [Abstract]  
Valuation and Qualifying Accounts Schedule II – Valuation and Qualifying Accounts
(in millions of Canadian dollars)
Beginning balance at January 1

Additions charged to expenses

Payments and other reductions

Impact of FX

Ending
balance at December 31

Accruals for personal injury, damage and other claims provision(1)
2016
$
133

$
67

$
(71
)
$
1

$
130

2017
$
130

$
66

$
(77
)
$
(1
)
$
118

2018
$
118

$
93

$
(60
)
$
1

$
152

Environmental liabilities
2016
$
93

$
6

$
(12
)
$
(2
)
$
85

2017
$
85

$
5

$
(8
)
$
(4
)
$
78

2018
$
78

$
6

$
(7
)
$
5

$
82

(1) Includes WCB, FELA, occupational, damage and other claims.