Equity in Net Assets of Non-consolidated Affiliates (Details) $ in Millions	Sep. 30, 2015 USD ($)
SAIC-GMAC [Member]
Noncontrolling Interest [Line Items]
Undistributed earnings	$ 85

Amount of undistributed earnings of foreign subsidiaries intended to be permanently reinvested outside the country of domicile.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

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