Earnings (Loss) Per Share (Tables)

6 Months Ended

Mar. 31, 2023

Earnings Per Share [Abstract]

Computation of basic and diluted (loss) earnings per share

	Three Months Ended March 31,				Six Months Ended March 31,
	2023		2022		2023		2022
Net Earnings from Continuing Operations
Net earnings from continuing operations	$	54.1	$	525.6	$	146.0	$	480.9
Impact of redeemable NCI	3.4		(0.6)		9.1		4.3
Net earnings from continuing operations for basic earnings per share	$	57.5	$	525.0	$	155.1	$	485.2
Impact of interest expense, net of tax, related to convertible senior notes	2.7		—		5.4		—
Net earnings from continuing operations for diluted earnings per share	$	60.2	$	525.0	$	160.5	$	485.2
Net (Loss) Earnings from Discontinued Operations
Net (loss) earnings from discontinued operations for basic (loss) earnings per share	$	—	$	(2.3)	$	—	$	21.6
Dilutive impact of Old BellRing net earnings from discontinued operations	—		—		—		—
Net (loss) earnings from discontinued operations for diluted (loss) earnings per share	$	—	$	(2.3)	$	—	$	21.6
Net Earnings
Net earnings for basic earnings per share	$	57.5	$	522.7	$	155.1	$	506.8
Net earnings for diluted earnings per share	$	60.2	$	522.7	$	160.5	$	506.8
shares in millions
Weighted-average shares for basic earnings per share	58.8		61.7		58.8		62.1
Effect of dilutive securities:
Stock options	0.3		0.3		0.4		0.3
Stock appreciation rights	0.1		—		0.1		—
Restricted stock units	0.4		0.2		0.5		0.2
Market-based performance restricted stock units	0.6		—		0.5		0.1
Earnings-based performance restricted stock units	0.1		—		0.1		—
Shares issuable upon conversion of convertible senior notes	5.4		—		5.4		—
Total dilutive securities	6.9		0.5		7.0		0.6
Weighted-average shares for diluted earnings per share	65.7		62.2		65.8		62.7
Earnings from Continuing Operations per Common Share:
Basic	$	0.98	$	8.51	$	2.64	$	7.81
Diluted	$	0.92	$	8.44	$	2.44	$	7.74
(Loss) Earnings from Discontinued Operations per Common Share:
Basic	$	—	$	(0.04)	$	—	$	0.35
Diluted	$	—	$	(0.04)	$	—	$	0.34
Earnings per Common Share:
Basic	$	0.98	$	8.47	$	2.64	$	8.16
Diluted	$	0.92	$	8.40	$	2.44	$	8.08

Antidilutive Securities Excluded from Computation of Diluted (Loss) Earnings Per Share

	Three Months Ended March 31,		Six Months Ended March 31,
shares in millions	2023	2022	2023	2022
Restricted stock units	—	1.0	0.1	0.6
Market-based performance restricted stock units	0.2	0.2	0.2	0.1