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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
--- | ---
Mar. 31, 2020 | Mar. 31, 2019
Earnings Per Share [Abstract] |  |
Net income before non-controlling interests | $ 767 | $ 727
Less: Net income attributable to non-controlling interests | 13 | 11
Net income attributable to the Company | $ 754 | $ 716
Basic weighted average common shares outstanding (in shares) | 505 | 505
Dilutive effect of potentially issuable common shares (in shares) | 5 | 6
Diluted weighted average common shares outstanding (in shares) | 510 | 511
Average stock price used to calculate common stock equivalents (in dollars per share) | $ 107.10 | $ 88.54

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