Notes Payable - Schedule of Long Term Debt (Details) - USD ($) $ in Millions			12 Months Ended
	Aug. 19, 2014	Jun. 25, 2013	Dec. 31, 2016	Dec. 31, 2015	Aug. 28, 2012	Aug. 02, 2011	May 05, 2010
Debt Instrument [Line Items]
Notes payable			$ (2,746)	$ (2,793)
London Interbank Offered Rate (LIBOR)
Debt Instrument [Line Items]
Interest at period end (as percent)			2.81%
Unsecured Notes | Unsecured notes due September 2022
Debt Instrument [Line Items]
Notes payable			$ (397)	$ (397)
Stated interest rate (as percent)			5.50%	5.50%	5.50%
Unsecured Notes | 6.60% Unsecured notes due May 2017
Debt Instrument [Line Items]
Notes payable			$ (300)	$ (300)
Stated interest rate (as percent)			6.60%	6.60%			6.60%
Unsecured Notes | 5.75% Unsecured Notes Due April 2023
Debt Instrument [Line Items]
Stated interest rate (as percent)			5.75%	5.75%
Unsecured Notes | 5.75% Unsecured Notes Due April 2023 | Black Knight Financial Services, LLC
Debt Instrument [Line Items]
Notes payable			$ (401)	$ (402)
Convertible Debt | 4.25% unsecured convertible notes due August 2018
Debt Instrument [Line Items]
Notes payable			$ (291)	$ (288)
Stated interest rate (as percent)			4.25%	4.25%		4.25%
Line of Credit | Minimum
Debt Instrument [Line Items]
Stated interest rate (as percent)		1.325%
Line of Credit | Maximum
Debt Instrument [Line Items]
Stated interest rate (as percent)		1.60%
Line of Credit | Revolving Credit Facility due July 2018 | Revolving Credit Facility
Debt Instrument [Line Items]
Notes payable			$ (3)	$ (5)
Remaining borrowing capacity			$ 800
Line of Credit | Revolving Credit Facility due July 2018 | Revolving Credit Facility | London Interbank Offered Rate (LIBOR)
Debt Instrument [Line Items]
Basis spread on variable rate (as percent)		1.45%	1.45%	1.45%
Line of Credit | Black Knight Financial Services Credit Agreement | Black Knight Financial Services, LLC
Debt Instrument [Line Items]
Notes payable			$ (1,120)
Line of Credit | Black Knight Financial Services Credit Agreement | Revolving Credit Facility | Black Knight Financial Services, LLC
Debt Instrument [Line Items]
Notes payable			(46)	$ (95)
Remaining borrowing capacity			$ 350
Line of Credit | Black Knight Financial Services Credit Agreement | Revolving Credit Facility | Black Knight Financial Services, LLC | London Interbank Offered Rate (LIBOR)
Debt Instrument [Line Items]
Basis spread on variable rate (as percent)			2.00%
Line of Credit | Black Knight Financial Services Credit Agreement | Term Loan A | Black Knight Financial Services, LLC
Debt Instrument [Line Items]
Notes payable			$ (733)	(771)
Line of Credit | Black Knight Financial Services Credit Agreement | Term Loan A | Black Knight Financial Services, LLC | London Interbank Offered Rate (LIBOR)
Debt Instrument [Line Items]
Basis spread on variable rate (as percent)			2.00%
Interest at period end (as percent)			2.81%
Line of Credit | Black Knight Financial Services Credit Agreement | Term Loan B | Black Knight Financial Services, LLC
Debt Instrument [Line Items]
Notes payable			$ (341)	(343)
Line of Credit | Black Knight Financial Services Credit Agreement | Term Loan B | Black Knight Financial Services, LLC | London Interbank Offered Rate (LIBOR)
Debt Instrument [Line Items]
Basis spread on variable rate (as percent)			3.00%
Interest at period end (as percent)			3.81%
Line of Credit | American Blue Ribbon Holdings Credit Facility Due August 2019 | American Blue Ribbon Holdings
Debt Instrument [Line Items]
Remaining borrowing capacity			$ 84
Line of Credit | American Blue Ribbon Holdings Credit Facility Due August 2019 | American Blue Ribbon Holdings | London Interbank Offered Rate (LIBOR) | Minimum
Debt Instrument [Line Items]
Basis spread on variable rate (as percent)	2.25%
Line of Credit | American Blue Ribbon Holdings Credit Facility Due August 2019 | American Blue Ribbon Holdings | London Interbank Offered Rate (LIBOR) | Maximum
Debt Instrument [Line Items]
Basis spread on variable rate (as percent)	3.00%
Line of Credit | American Blue Ribbon Holdings Credit Facility Due August 2019 | Term Loan | American Blue Ribbon Holdings
Debt Instrument [Line Items]
Notes payable			$ (92)	(100)
Line of Credit | American Blue Ribbon Holdings Credit Facility Due August 2019 | Term Loan | American Blue Ribbon Holdings | London Interbank Offered Rate (LIBOR)
Debt Instrument [Line Items]
Basis spread on variable rate (as percent)			2.50%
Interest at period end (as percent)			3.27%
Line of Credit | American Blue Ribbon Holdings Credit Facility Due August 2019 | Revolving Credit Facility | American Blue Ribbon Holdings
Debt Instrument [Line Items]
Notes payable			$ 0	$ 0
Remaining borrowing capacity			$ 84
Line of Credit | American Blue Ribbon Holdings Credit Facility Due August 2019 | Revolving Credit Facility | American Blue Ribbon Holdings | London Interbank Offered Rate (LIBOR)
Debt Instrument [Line Items]
Basis spread on variable rate (as percent)			2.50%	2.50%
Line of Credit | Digital Insurance Revolving Credit Facility due March 31, 2020 | Revolving Credit Facility | Digital Insurance, Inc.
Debt Instrument [Line Items]
Notes payable			$ (129)	$ (99)
Remaining borrowing capacity			$ 31
Line of Credit | Digital Insurance Revolving Credit Facility due March 31, 2020 | Revolving Credit Facility | Digital Insurance, Inc. | London Interbank Offered Rate (LIBOR)
Debt Instrument [Line Items]
Interest at period end (as percent)			3.98%
Line of Credit | Digital Insurance Revolving Credit Facility due March 31, 2020 | Revolving Credit Facility | Digital Insurance, Inc. | London Interbank Offered Rate (LIBOR) | Minimum
Debt Instrument [Line Items]
Basis spread on variable rate (as percent)			2.50%
Line of Credit | Digital Insurance Revolving Credit Facility due March 31, 2020 | Revolving Credit Facility | Digital Insurance, Inc. | London Interbank Offered Rate (LIBOR) | Maximum
Debt Instrument [Line Items]
Basis spread on variable rate (as percent)			3.50%
Other
Debt Instrument [Line Items]
Notes payable			$ (19)	$ (3)