Consolidated Statements of Redeemable Noncontrolling Interest and Stockholders' Equity (Parenthetical) $ in Millions |
12 Months Ended |
|---|---|
|
Dec. 31, 2019
USD ($)
$ / shares
| |
| 2.00% Convertible Senior Notes due in 2024 [Member] | |
| Interest Rate | 2.00% |
| May 2019 Public Offering [Member] | |
| Common stock issued, per share | $ / shares | $ 48.60 |
| Common stock public offering issuance costs | $ | $ 15 |