Other liabilities and deferred credits (Tables)

12 Months Ended

Dec. 31, 2012

Notes To Financial Statements [Abstract]

Other liabilities and deferred credits

In millions	December 31,		2012		2011
Personal injury and other claims provisions, net of current portion (Note 16)		$	232	$	226
Stock-based incentives liability, net of current portion (Note 10)			203		180
Environmental provisions, net of current portion (Note 16)			92		89
Deferred credits and other			249		267
Total other liabilities and deferred credits		$	776	$	762