Major Commitments and Contingencies (Tables)

12 Months Ended

Dec. 31, 2019

Loss Contingencies [Line Items]

Provision for specific environmental sites

As at December 31, 2019, 2018 and 2017, the Company's provision for specific environmental sites was as follows:

In millions	2019			2018			2017
Beginning of year	$	61		$	78		$	86
Accruals and other	31			16			16
Payments	(34		)	(34		)	(23		)
Foreign exchange	(1		)	1			(1		)
End of year	$	57		$	61		$	78
Current portion - End of year	$	38		$	39		$	57

Employee injuries, Canada [Member]

Loss Contingencies [Line Items]

Provision for personal injury and other claims

As at December 31, 2019, 2018 and 2017, the Company's provision for personal injury and other claims in Canada was as follows:

In millions	2019			2018			2017
Beginning of year	$	207		$	183		$	183
Accruals and other	29			52			38
Payments	(29		)	(28		)	(38		)
End of year	$	207		$	207		$	183
Current portion - End of year	$	55		$	60		$	40

Employee injuries, United States [Member]

Loss Contingencies [Line Items]

Provision for personal injury and other claims

As at December 31, 2019, 2018 and 2017, the Company's provision for personal injury and other claims in the U.S. was as follows:

In millions	2019			2018			2017
Beginning of year	$	139		$	116		$	118
Accruals and other	44			41			46
Payments	(31		)	(28		)	(41		)
Foreign exchange	(7		)	10			(7		)
End of year	$	145		$	139		$	116
Current portion - End of year	$	36		$	37		$	25