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Note 15 - Earnings Per Share (Tables)

9 Months Ended

Sep. 30, 2021

Earnings Per Share [Abstract]

Summary of Reconciliation of Basic and Diluted Earnings Per Share

A reconciliation of the amounts used to calculate basic and diluted earnings per share for the three and nine months ended September 30, 2021 and 2020 follows:

		Three Months Ended								Nine Months Ended
		September 30,								September 30,
(in millions)		2021				2020				2021				2020
Net income (loss)		$	8			$	(445	)		$	30			$	(561	)
Less: Series B preferred stock cash and deemed dividends			(1	)			—				(3	)			—
Less: Series C preferred stock in-kind and deemed dividends			(2	)			—				(4	)			—
Less: Series A preferred stock cash and deemed dividends			—				(5	)			(3	)			(15	)
Plus: Expiration of Series A preferred stock embedded derivative			—				—				11				—
Net income (loss) available to common shareholders - basic and diluted		$	5			$	(450	)		$	31			$	(576	)

		Three Months Ended								Nine Months Ended
		September 30,								September 30,
(in millions of shares)		2021				2020				2021				2020
Weighted average shares — basic			78.6				64.8				78.3				50.8
Effect of dilutive securities
Employee stock options			1.9				—				2.1				—
Unvested restricted stock units			0.1				—				0.1				—
Weighted average shares — diluted			80.6				64.8				80.5				50.8