The calculation of basic and diluted earnings per common share for the three-month periods ended August 31 was as follows (in millions, except per share amounts):

		2015		2014
Basic earnings per common share:
Net earnings allocable to common shares⁽¹⁾		$	691	$	653
Weighted-average common shares			282		285
Basic earnings per common share		$	2.45	$	2.29

Diluted earnings per common share:
Net earnings allocable to common shares⁽¹⁾		$	691	$	653

Weighted-average common shares			282		285
Dilutive effect of share-based awards			4		4
Weighted-average diluted shares			286		289
Diluted earnings per common share		$	2.42	$	2.26

Anti-dilutive options excluded from diluted
	earnings per common share		3.5		2.1

(1) Net earnings available to participating securities were immaterial in all periods presented.