Commitments And Contingencies (Expected Timing Of Payments For Commitments) (Details) (USD $)	Sep. 30, 2012		Dec. 31, 2011
Commitments and Contingencies Disclosure [Abstract]
Less than one year	$ 2,088,881,000	[1]	$ 1,713,445,000	[1]
Due after one year and through 3 years	2,391,629,000		2,384,373,000
Due after 3 years and through 5 years	433,549,000		650,480,000
Due after 5 years	58,968,000		74,696,000
Total streaming content obligations	4,973,027,000		4,822,994,000
Recorded unconditional purchase obligation	$ 1,300,000,000		$ 900,000,000

[1] Prior period amounts have been presented to conform to the current period presentation which includes the streaming portion of current "Content liabilities" reflected on the Consolidated Balance Sheets. Note that total streaming content obligations remain unchanged with this presentation. Specifically, payments for streaming content obligations expected to be made in less than one year as of September 30, 2012 and December 31, 2011, as shown above, include $1.3 billion and $0.9 billion, respectively, of current "Content liabilities" reflected on the Consolidated Balance Sheets.