Leased Assets (Tables)

12 Months Ended

Dec. 31, 2012

Leases [Abstract]

Schedule of Rent Expense [Table Text Block]

Net rental expense comprised the following:

(In millions)	2012			2011			2010
Gross rental expense	$	417		$	415		$	400
Sublease rental income	(53		)	(61		)	(66		)
	$	364		$	354		$	334

Schedule of Future Minimum Rental Payments for Operating Leases and Capital Leases [Table Text Block]

The following table presents minimum future lease payments:

																2018 and
(In millions)	2013			2014			2015			2016			2017			Beyond			Total
Capital Leases
Minimum lease payments	$	15		$	15		$	11		$	8		$	6		$	27		$	82
Imputed interest	(1		)	(3		)	(2		)	(2		)	(1		)	(15		)	(24		)
Present value	$	14		$	12		$	9		$	6		$	5		$	12		$	58
Operating Leases
Minimum lease payments	$	322		$	249		$	197		$	155		$	117		$	382		$	1,422
Minimum sublease rentals	(42		)	(33		)	(25		)	(17		)	(9		)	(5		)	(131		)
	$	280		$	216		$	172		$	138		$	108		$	377		$	1,291
Imputed interest																			(291		)
Present value																			$	1,000