The following table presents the reconciliation of basic and diluted earnings per share for the three and six months ended June 30, 2024:


(in millions, except per share data)	Three months ended June 30, 2024					Six months ended June 30, 2024
	Earnings (numerator)		Weighted average shares outstanding (denominator)	Earnings per share		Earnings (numerator)		Weighted average shares outstanding (denominator)	Earnings per share
Basic	$	92.9	679.4	$	0.14	$	153.3	678.7	$	0.23
Dilutive effect of stock-based awards	—		3.2			—		3.2

Diluted	$	92.9	682.6	$	0.14	$	153.3	681.9	$	0.22

The following table presents the reconciliation of basic and diluted earnings (loss) per share for the three and six months ended June 30, 2023:


(in millions, except per share data)	Three months ended June 30, 2023						Six months ended June 30, 2023
	Loss (numerator)		Weighted average shares outstanding (denominator)		Loss per share		Earnings (numerator)		Weighted average shares outstanding (denominator)	Earnings per share
Basic	$	(7.3)	675.3		$	(0.01)	$	114.2	675.0	$	0.17
Dilutive effect of stock-based awards	—		—				—		2.9

Diluted	$	(7.3)	$	675.3	$	(0.01)	$	114.2	677.9	$	0.17

For the three months ended June 30, 2023, basic and diluted loss per share calculations were the same because there was a net loss. As a result, 1.6 million of stock options and 0.8 million of restricted stock units were excluded from the calculation of diluted loss per share as their effect would be anti-dilutive.