Consolidated Statements of Redeemable Noncontrolling Interest and Stockholders' Equity (Parenthetical) - USD ($) $ in Millions |
12 Months Ended | |
|---|---|---|
Dec. 31, 2019 |
Dec. 31, 2017 |
|
| Statement Of Stockholders Equity [Abstract] | ||
| Common stock issued, per share | $ 243.00 | $ 262.00 |
| Common stock public offering issuance costs | $ 15 | $ 3 |