Acquisitions - Total Consideration Relating to Acquisition (Details) - USD ($) $ in Millions	Mar. 19, 2021	Feb. 13, 2020
Cortera
Business Acquisition [Line Items]
Cash paid at closing	$ 138
Additional consideration to be paid to sellers	1
Total consideration	$ 139
Regulatory Data Corporation
Business Acquisition [Line Items]
Cash paid at closing		$ 700
Additional consideration to be paid to sellers		2
Total consideration		$ 702