Lease Commitments (Tables)

12 Months Ended

Dec. 31, 2011

Schedule of Future Minimum Rental Commitments Under Non-Cancelable Operating Leases

The future minimum rental commitments under non-cancelable operating leases follow:

(MILLIONS OF DOLLARS)	2012		2013		2014		2015		2016		AFTER 2016
Lease commitments		$187		$166		$144		$105		$83		$723