v3.10.0.1

Condensed Consolidated Balance Sheets (unaudited) (Parenthetical) - USD ($) $ in Millions	Jun. 30, 2018	Dec. 31, 2017
Investments	$ 2,164.1	$ 2,315.3
Class A
Common stock, nominal value (in dollars per share)	$ 0.01	$ 0.01
Common stock, issued (in shares)	207,403,209	219,668,579
Common stock, outstanding (in shares)	207,403,209	219,668,579
Class B
Common stock, nominal value (in dollars per share)	$ 0.01	$ 0.01
Common stock, issued (in shares)	11,102,619	11,102,619
Common stock, outstanding (in shares)	11,102,619	11,102,619
Class C
Common stock, nominal value (in dollars per share)	$ 0.01	$ 0.01
Common stock, issued (in shares)	555,820,059	584,332,055
Common stock, outstanding (in shares)	555,820,059	584,332,055

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Face amount or stated value per share of common stock.

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