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v3.19.2

Income Per Common Share (Details) - USD ($) shares in Millions, $ in Millions | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2019 | Jun. 30, 2018 | Jun. 30, 2019 | Jun. 30, 2018
Numerator (basic and diluted): |  |  |  |
Net income | $ 240 | $ 211 | $ 356 | $ 360
Less: Allocation to unvested restricted stock awards | 2 | 1 | 2 | 3
Net income available to common shareholders | $ 238 | $ 210 | $ 354 | $ 357
Denominator: |  |  |  |
Basic common shares (based upon weighted average) (in shares) | 289 | 306 | 291 | 308
Add: Stock option dilution (in shares) | 1 | 3 | 1 | 3
Diluted common shares (in shares) | 290 | 309 | 292 | 311

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