Goodwill and Other Intangibles (Tables)

12 Months Ended

Dec. 31, 2011

Goodwill and Other Intangibles

Summary of the Company's intangible assets

	2011							2010
In millions	Gross Carrying Amount		Accumulated Amortization			Net Carrying Amount		Gross Carrying Amount		Accumulated Amortization			Net Carrying Amount
Trademark (indefinitely-lived)	$	6,398	$	—		$	6,398	$	6,398	$	—		$	6,398
Customer contracts and relationships and covenants not to compete	5,427		(2,386		)	3,041		4,903		(1,982		)	2,921
Favorable leases and other	769		(339		)	430		762		(297		)	465
	$	12,594	$	(2,725	)	$	9,869	$	12,063	$	(2,279	)	$	9,784