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