Marketable Securities (Tables)

9 Months Ended

Sep. 30, 2011

Marketable Securities

Schedule of Marketable Securities

(Millions)	Sept. 30, 2011		Dec. 31, 2010
U.S. government agency securities	$	257	$	246
Foreign government agency securities	—		52
Corporate debt securities	389		280
Commercial paper	138		55
Certificates of deposit/time deposits	117		29
U.S. treasury securities	—		55
U.S. municipal securities	6		20
Asset-backed securities:
Automobile loan related	388		253
Credit card related	144		79
Equipment lease related	35		24
Other	10		8
Asset-backed securities total	577		364
Other securities	2		—
Current marketable securities	$	1,486	$	1,101
U.S. government agency securities	$	132	$	63
Foreign government agency securities	3		3
Corporate debt securities	106		192
U.S. treasury securities	34		44
U.S. municipal securities	3		3
Asset-backed securities:
Automobile loan related	81		144
Credit card related	56		70
Equipment lease related	23		14
Asset-backed securities total	160		228
Auction rate securities	5		7
Non-current marketable securities	$	443	$	540
Total marketable securities	$	1,929	$	1,641

Marketable securities by contractual maturity

(Millions)	Sept. 30, 2011
Due in one year or less	$	1,013
Due after one year through three years	805
Due after three years through five years	96
Due after five years	15
Total marketable securities	$	1,929