Note 6 - Employee Benefit Plans (Tables)

6 Months Ended

Jun. 30, 2012

Schedule of Defined Benefit Plans Disclosures [Table Text Block]

	Three months ended June 30,						Six months ended June 30,
In millions	2012			2011			2012			2011
Service cost	$	7		$	4		$	14		$	7
Interest cost		11			7			22			14
Expected return on plan assets		(16	)		(8	)		(32	)		(16	)
Net amortization of prior service cost		0			0			(1	)		(1	)
Recognized actuarial loss		8			3			17			7
Net pension benefit cost	$	10		$	6		$	20		$	11

	Three months ended June 30,						Six months ended June 30,
In millions	2012			2011			2012			2011
Service cost	$	1		$	0		$	2		$	0
Interest cost		4			2			8			3
Expected return on plan assets		(2	)		(2	)		(3	)		(3	)
Net amortization of prior service cost		0			(1	)		(1	)		(2	)
Recognized actuarial loss		2			0			5			1
Net benefit cost	$	5		$	(1	)	$	11		$	(1	)