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Schedule II - Valuation and Qualifying Accounts
 12 Months Ended
Dec. 31, 2017
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 and other claims liabilities(1)
2015
$
150

$
79

$
(102
)
$
6

$
133

2016
$
133

$
67

$
(71
)
$
1

$
130

2017
$
130

$
66

$
(77
)
$
(1
)
$
118

Environmental liabilities
2015
$
91

$
7

$
(17
)
$
12

$
93

2016
$
93

$
6

$
(12
)
$
(2
)
$
85

2017
$
85

$
5

$
(8
)
$
(4
)
$
78

(1) Includes WCB, FELA, occupational, foreign car damage and property & lading damage claims.