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Per Share Data (Basic and Diluted EPS Calculation Continuing Operations) (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2020 | Jun. 30, 2019 | Jun. 30, 2020 | Jun. 30, 2019
Earnings Per Share [Abstract] |  |  |  |
Net income before non-controlling interests | $ 580 | $ 344 | $ 1,347 | $ 1,071
Less: Net income attributable to non-controlling interests | 8 | 12 | 21 | 23
Net income attributable to the Company | $ 572 | $ 332 | $ 1,326 | $ 1,048
Basic weighted average common shares outstanding (in shares) | 506 | 507 | 505 | 506
Dilutive effect of potentially issuable common shares (in shares) | 5 | 5 | 5 | 5
Diluted weighted average common shares outstanding (in shares) | 511 | 512 | 510 | 511
Average stock price used to calculate common stock equivalents (in dollars per share) | $ 101.17 | $ 95.74 | $ 104.14 | $ 92.14

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