Income (Loss) per Share Income (Loss) per Share (Tables)

3 Months Ended

Mar. 31, 2016

Weighted average shares outstanding and antidilutive shares [Line Items]

Weighted average shares outstanding and antidilutive shares

A reconciliation of the number of shares used for the basic and diluted income per share computations is as follows:

	Three Months Ended March 31
Millions of shares	2016	2015
Basic weighted average common shares outstanding	858	850
Dilutive effect of awards granted under our stock incentive plans	—	—
Diluted weighted average common shares outstanding	858	850
Antidilutive shares:
Options with exercise price greater than the average market price	17	9
Options which ordinarily would be considered dilutive if not for being in net loss position	1	2
Total antidilutive shares	18	11