Consolidated Statements of Shareholders' Equity (Parenthetical) In Millions, unless otherwise specified	Feb. 02, 2007
Shares issued to subsidiary not considered outstanding	475

Shares issued to subsidiary not considered outstanding

No definition available.

Name:	dell_SharesIssuedToSubsidiaryNotConsideredOutstanding
Namespace Prefix:	dell_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	instant