Marketable Securities (Tables)

3 Months Ended

Mar. 31, 2013

Marketable Securities

Schedule of Marketable Securities

		March 31,		December 31,
(Millions)		2013		2012
U.S. government agency securities		$	336	$	162
Foreign government agency securities			21		16
Corporate debt securities			301		471
Commercial paper			95		116
Certificates of deposit/time deposits			42		41
U.S. treasury securities			54		54
U.S. municipal securities			15		13
Asset-backed securities:
	Automobile loan related		479		567
	Credit card related		61		123
	Equipment lease related		43		54
	Other		1		31
Asset-backed securities total			584		775
Current marketable securities		$	1,448	$	1,648
U.S. government agency securities		$	196	$	125
Foreign government agency securities			71		51
Corporate debt securities			475		494
Certificates of deposit/time deposits			20		―
U.S. treasury securities			2		18
U.S. municipal securities			13		14
Auction rate securities			7		7
Asset-backed securities:
	Automobile loan related		506		375
	Credit card related		82		34
	Equipment lease related		54		36
	Other		26		8
Asset-backed securities total			668		453
Non-current marketable securities		$	1,452	$	1,162
Total marketable securities		$	2,900	$	2,810

Marketable securities by contractual maturity

(Millions)	March 31, 2013
Due in one year or less	$	704
Due after one year through three years		1,526
Due after three years through five years		651
Due after five years		19
Total marketable securities	$	2,900