Fair value measurement (Tables)

3 Months Ended

Mar. 31, 2013

Fair value of each major class of financial assets and liabilities measured at fair value on a recurring basis



	Quoted prices in active markets for identical assets (Level 1)		Significant other observable inputs (Level 2)		Significant unobservable inputs (Level 3)
Fair value measurement
as of December 31, 2012, using:							Total
Assets:
Available-for-sale investments:
U.S. Treasury securities	$	4,458	$	—	$	—	$	4,458
Other government-related debt securities:
U.S.	—		1,030		—		1,030
Foreign and other	—		1,608		—		1,608
Corporate debt securities:
Financial	—		3,361		—		3,361
Industrial	—		4,380		—		4,380
Other	—		452		—		452
Residential mortgage-backed securities	—		1,829		—		1,829
Other mortgage- and asset-backed securities	—		1,767		—		1,767
Money market mutual funds	2,620		—		—		2,620
Other short-term interest-bearing securities	—		2,186		—		2,186
Equity securities	54		—		—		54
Derivatives:
Foreign currency contracts	—		46		—		46
Cross-currency swap contracts	—		65		—		65
Total assets	$	7,132	$	16,724	$	—	$	23,856
Liabilities:
Derivatives:
Foreign currency contracts	$	—	$	59	$	—	$	59
Cross-currency swap contracts	—		6		—		6
Contingent consideration obligations in connection with a business combination	—		—		221		221
Total liabilities	$	—	$	65	$	221	$	286

The fair value of each major class of the Company’s financial assets and liabilities measured at fair value on a recurring basis was as follows (in millions):



	Quoted prices in active markets for identical assets (Level 1)		Significant other observable inputs (Level 2)		Significant unobservable inputs (Level 3)
Fair value measurement
as of March 31, 2013, using:							Total
Assets:
Available-for-sale investments:
U.S. Treasury securities	$	2,707	$	—	$	—	$	2,707
Other government-related debt securities:
U.S.	—		1,019		—		1,019
Foreign and other	—		1,466		—		1,466
Corporate debt securities:
Financial	—		3,977		—		3,977
Industrial	—		4,457		—		4,457
Other	—		479		—		479
Residential mortgage-backed securities	—		1,817		—		1,817
Other mortgage- and asset-backed securities	—		1,497		—		1,497
Money market mutual funds	1,742		—		—		1,742
Other short-term interest-bearing securities	—		1,677		—		1,677
Equity securities	62		—		—		62
Derivatives:
Foreign currency contracts	—		108		—		108
Cross-currency swap contracts	—		8		—		8
Interest rate swap contracts	—		22		—		22
Total assets	$	4,511	$	16,527	$	—	$	21,038
Liabilities:
Derivatives:
Foreign currency contracts	$	—	$	21	$	—	$	21
Cross-currency swap contracts	—		72		—		72
Contingent consideration obligations in connection with a business combination	—		—		222		222
Total liabilities	$	—	$	93	$	222	$	315