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v3.21.2

(Loss) Income Per Common Share (Details) - USD ($) shares in Millions, $ in Millions | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2021 | Mar. 31, 2021 | Jun. 30, 2020 | Jun. 30, 2021 | Jun. 30, 2020
Numerator (basic and diluted): |  |  |  |  |
(Loss) income from continuing operations | $ (36) |  | $ 210 | $ 58 | $ 343
Less: Allocation to redeemable noncontrolling interest | 0 | $ 6 | 0 | 6 | 0
Less: Allocation to unvested restricted stock awards | 0 |  | 2 | 0 | 3
(Loss) income from continuing operations attributable to common shareholders | (36) |  | 208 | 52 | 340
Income from discontinued operations, net | 0 |  | 14 | 0 | 411
Less: Allocation to unvested restricted stock awards | 0 |  | 0 | 0 | 3
Income from discontinued operations, net attributable to common shareholders | 0 |  | 14 | 0 | 408
Net (loss) income attributable to common shareholders | $ (36) |  | $ 222 | $ 52 | $ 748
Denominator: |  |  |  |  |
Basic common shares (based upon weighted average) (in shares) | 252 |  | 262 | 254 | 267
Add: Stock option dilution (in shares) | 0 |  | 1 | 2 | 1
Diluted common shares (in shares) | 252 |  | 263 | 256 | 268

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