Marketable Securities (Tables)

6 Months Ended

Jun. 30, 2011

Marketable Securities

Schedule of Marketable Securities

(Millions)	June 30, 2011		Dec. 31, 2010
U.S. government agency securities	$	203	$	246
Foreign government agency securities	10		52
Corporate debt securities	240		280
Commercial paper	148		55
Certificates of deposit	15		—
U.S. treasury securities	15		55
U.S. municipal securities	12		20
Asset-backed securities:
Automobile loan related	328		253
Credit card related	43		79
Equipment lease related	56		24
Other	17		8
Asset-backed securities total	444		364
Other securities	61		29
Current marketable securities	$	1,148	$	1,101
U.S. government agency securities	$	57	$	63
Foreign government agency securities	3		3
Corporate debt securities	141		192
U.S. treasury securities	35		44
U.S. municipal securities	3		3
Asset-backed securities:
Automobile loan related	96		144
Credit card related	50		70
Equipment lease related	14		14
Asset-backed securities total	160		228
Auction rate securities	8		7
Non-current marketable securities	$	407	$	540
Total marketable securities	$	1,555	$	1,641

Marketable securities by contractual maturity

(Millions)	June 30, 2011
Due in one year or less	$	809
Due after one year through three years	685
Due after three years through five years	43
Due after five years	18
Total marketable securities	$	1,555