Major commitments and contingencies (Tables)

12 Months Ended

Dec. 31, 2011

Notes To Financial Statements [Abstract]

Minimum rental payments for operating leases and minimum lease payments for capital leases in each of the next five years and thereafter

Minimum rental payments for operating leases having initial non-cancelable lease terms of more than one year and minimum lease payments for capital leases in each of the next five years and thereafter are as follows:

In millions		Operating		Capital
2012	$	128	$	99
2013		103		151
2014		76		270
2015		61		109
2016		45		297
2017 and thereafter		252		328
	$	665		1,254
Less: imputed interest on capital leases at rates ranging from approximately 0.7% to 11.8%				299
Present value of minimum lease payments included in debt			$	955

Provision for personal injury and other claims in Canada

As at December 31, 2011, 2010 and 2009, the Company's provision for personal injury and other claims in Canada was as follows:

In millions		2011		2010		2009
Balance January 1	$	200	$	178	$	189
Accruals and other		31		59		48
Payments		(32)		(37)		(59)
Balance December 31	$	199	$	200	$	178
Current portion - Balance December 31	$	39	$	39	$	34

Provision for personal injury and other claims in the U.S.

As at December 31, 2011, 2010 and 2009, the Company's provision for personal injury and other claims in the U.S. was asfollows:

In millions		2011		2010		2009
Balance January 1	$	146	$	166	$	265
Accruals and other		30		7		(46)
Payments		(65)		(27)		(53)
Balance December 31	$	111	$	146	$	166
Current portion - Balance December 31	$	45	$	44	$	72

Provision for specific environmental sites

As at December 31, 2011, 2010 and 2009, the Company's provision for specific environmental sites was as follows:
In millions			2011		2010		2009
Balance January 1		$	150	$	103	$	125
	Accruals and other		17		67		(7)
	Payments		(15)		(20)		(15)
Balance December 31		$	152	$	150	$	103
Current portion - Balance December 31		$	63	$	34	$	38