Income Taxes - Additional Information (Detail) (USD $)	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2009
Income Taxes [Line Items]
Reduction in current income tax payable attributable to stock-based compensation	$ 64,000,000	$ 21,000,000	$ 23,000,000
Valuation allowance	12,695,000	23,422,000
Change in valuation allowance incurred during the period		11,000,000
Undistributed earnings of foreign subsidiaries	651,000,000
Effective interest rate of federal statutory income tax rate	35.00%	35.00%	35.00%
Unrecognized tax benefits	102,305,000	81,682,000	68,536,000	187,075,000
Unrecognized tax benefits that would impact effective tax rate	83,000,000	75,000,000
Uncertain tax positions, interest and penalties	18,000,000	14,000,000
Interest (income) expense, net of federal benefit and penalties	1,305,000	1,914,000	(10,512,000)
FY 2005 Through FY 2007 Audit Results
Income Taxes [Line Items]
Decreased liability for uncertain tax positions			152,000,000
Decrease in provision for income taxes			16,000,000
Increase in additional paid-in capital			112,000,000
Minimum
Income Taxes [Line Items]
Percentage of tax benefit likely to be realized upon settlement if the tax position meets the more likely than not criteria,	50.00%
Federal
Income Taxes [Line Items]
Net operating loss carryforwards	5,000,000
State and Local
Income Taxes [Line Items]
Net operating loss carryforwards	17,000,000
Foreign
Income Taxes [Line Items]
Net operating loss carryforwards	97,000,000
Indefinite foreign net operating loss carryforwards	76,000,000
Foreign net operating loss carryforwards subject to expiration	$ 21,000,000
Foreign | Minimum
Income Taxes [Line Items]
Net operating loss carryforwards expiration dates	2013
Foreign | Maximum
Income Taxes [Line Items]
Net operating loss carryforwards expiration dates	2031
Federal and State | Minimum
Income Taxes [Line Items]
Net operating loss carryforwards expiration dates	2013
Federal and State | Maximum
Income Taxes [Line Items]
Net operating loss carryforwards expiration dates	2031