Earnings Per Share (Tables)

9 Months Ended

Sep. 30, 2015

Earnings Per Share [Abstract]

Reconciliation of basic and diluted earnings per common share

The following is a reconciliation of basic and diluted earnings per share from continuing operations for the respective periods:

	Three Months Ended September 30,				Nine Months Ended September 30,
In millions, except per share amounts	2015		2014		2015		2014
Numerator for earnings per share calculations:
Income from continuing operations(1)	$	1,230	$	944	$	3,711	$	3,310
Denominators for earnings per share calculations:
Weighted average shares, basic	1,114		1,157		1,122		1,167
Effect of dilutive securities	7		7		8		8
Weighted average shares, diluted	1,121		1,164		1,130		1,175
Earnings per share from continuing operations:
Basic	$	1.10	$	0.82	$	3.31	$	2.84
Diluted	$	1.10	$	0.81	$	3.28	$	2.82

(1) Comprised of income from continuing operations less net income attributable to noncontrolling interest and amounts allocable to participating securities of $6 million and $4 million for the three months ended September 30, 2015 and 2014, respectively, and $18 million and $13 million for the nine months ended September 30, 2015 and 2014, respectively.