Accounting Policies (Details) $ in Millions	12 Months Ended
Dec. 31, 2016 USD ($)
Accounting Standards Update 2014-09 [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
New Accounting Pronouncement or Change in Accounting Principle, Expected Cumulative Effect of Change on Equity or Net Assets	$ 10

Amount of expected cumulative effect of the change in accounting principle or new accounting pronouncement on retained earnings or other components of equity or net assets in the statement of financial position as of the beginning of the earliest period presented.

No definition available.

Name:	fmcc_NewAccountingPronouncementorChangeinAccountingPrincipleExpectedCumulativeEffectofChangeonEquityorNetAssets
Namespace Prefix:	fmcc_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration