Fair Value Measurement of Assets and Liabilities (Tables)

12 Months Ended

Dec. 31, 2013

Fair Value Disclosures [Abstract]

Schedule of fair value of assets and liabilities measured on recurring basis

Description	Balance as of December 31, 2013		Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)
	(In millions)
Assets:
Cash and cash equivalents	$	4,494	$	4,159	$	335
Short-term investments:
Restricted cash	17		17		—
Corporate debt securities	3,529		—		3,529
Government and agency securities	43		—		43
Time deposits	49		—		49
Equity instruments	893		893		—
Total short-term investments	4,531		910		3,621
Funds receivable and customer accounts	3,563		—		3,563
Derivatives	44		—		44
Long-term investments:
Corporate debt securities	4,445		—		4,445
Government and agency securities	251		—		251
Total long-term investments	4,696		—		4,696
Total financial assets	$	17,328	$	5,069	$	12,259
Liabilities:
Derivatives	$	151	$	—	$	151

Description	Balance as of December 31, 2012		Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)
	(In millions)
Assets:
Cash and cash equivalents	$	6,817	$	5,685	$	1,132
Short-term investments:
Restricted cash	15		15		—
Corporate debt securities	1,153		—		1,153
Government and agency securities	20		—		20
Time deposits	765		—		765
Equity instruments	638		638		—
Total short-term investments	2,591		653		1,938
Derivatives	55		—		55
Long-term investments:
Corporate debt securities	2,669		—		2,669
Government and agency securities	42		—		42
Total long-term investments	2,711		—		2,711
Total financial assets	$	12,174	$	6,338	$	5,836
Liabilities:
Derivatives	$	86	$	—	$	86