XML 22 R16.htm IDEA: XBRL DOCUMENT
v3.19.3

Income (Loss) per Share | 9 Months Ended
--- | ---
Sep. 30, 2019
Earnings Per Share [Abstract] |
Income (Loss) per Share | Income per Share Basic income per share is based on the weighted average number of common shares outstanding during the period. Diluted income per share includes additional common shares that would have been outstanding if potential common shares with a dilutive effect had been issued. Antidilutive shares represent potential common shares which are excluded from the computation of diluted income per share as their impact would be antidilutive. A reconciliation of the number of shares used for the basic and diluted income per share computations is as follows:
| Three Months Ended September 30 | Nine Months Ended September 30
Millions of shares | 2019 | 2018 | 2019 | 2018
Basic weighted average common shares outstanding | 876 |  | 877 |  | 874 |  | 876 |
Dilutive effect of awards granted under our stock incentive plans | — |  | 1 |  | 1 |  | 3 |
Diluted weighted average common shares outstanding | 876 |  | 878 |  | 875 |  | 879 |
Antidilutive shares: |  |  |  |
Options with exercise price greater than the average market price | 26 |  | 15 |  | 23 |  | 7 |
Total antidilutive shares | 26 |  | 15 |  | 23 |  | 7 |

X
- References No definition available. + Details
Name: | us-gaap_EarningsPerShareAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The entire disclosure for earnings per share. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -URI http://asc.fasb.org/topic&trid=2144383 + Details
Name: | us-gaap_EarningsPerShareTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration