Condensed Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Millions |
Mar. 31, 2022 |
Dec. 31, 2021 |
|---|---|---|
| Allowance for doubtful accounts | $ 102 | $ 107 |
| Current portion of debt, fair value | $ 1,151 | $ 1,315 |
| Common Class A | ||
| Common stock, par or stated value per share | $ 0.01 | $ 0.01 |
| Common stock, shares authorized | 4,000,000,000 | 4,000,000,000 |
| Common stock, shares issued | 373,490,863 | 371,132,684 |
| Common stock, shares outstanding | 373,490,863 | 371,132,684 |
| Common Class B | ||
| Common stock, par or stated value per share | $ 0.01 | $ 0.01 |
| Common stock, shares authorized | 150,000,000 | 150,000,000 |
| Common stock, shares issued | 8,392,212 | 8,163,190 |
| Common stock, shares outstanding | 8,392,212 | 8,163,190 |
| Common Class C | ||
| Common stock, par or stated value per share | $ 0.01 | $ 0.01 |
| Common stock, shares authorized | 400,000,000 | 400,000,000 |
| Common stock, shares issued | 0 | 0 |