Consolidated Statements of Equity (Unaudited) - USD ($) $ in Millions	Total	COMMON STOCK	ADDITIONAL PAID-IN CAPITAL	RETAINED EARNINGS	ACCUMULATED OTHER COMPREHENSIVE (LOSS) INCOME	TREASURY SHARES	NON-CONTROLLING INTERESTS
Balance, beginning of period at Dec. 31, 2018		$ 561	$ 817	$ 14,347	$ (4,647)	$ (3,567)	$ 73
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Change in accrued stock compensation costs			23
Issuance of shares under stock compensation plans and employee stock purchase plans			(44)			250
Other			0
Net income attributable to the Company	$ 1,377			1,351			26
Dividend equivalents declared				(6)
Dividends declared				(881)
Other comprehensive income (loss), net of tax	(284)				(284)
Purchase of treasury shares						(300)
Net non-controlling interests acquired / (disposed)							95
Distributions and other changes							(17)
Balance, end of period at Sep. 30, 2019	$ 7,797	561	796	14,811	(4,931)	(3,617)	177
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Dividends declared per share (in dollars per share)	$ 1.740
Balance, beginning of period at Jun. 30, 2019		561	736	14,741	(4,527)	(3,446)	272
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Change in accrued stock compensation costs			65
Issuance of shares under stock compensation plans and employee stock purchase plans			(5)			29
Other			0
Net income attributable to the Company	$ 306			303			3
Dividend equivalents declared				(2)
Dividends declared				(231)
Other comprehensive income (loss), net of tax	(404)				(404)
Purchase of treasury shares						(200)
Net non-controlling interests acquired / (disposed)							(100)
Distributions and other changes							2
Balance, end of period at Sep. 30, 2019	$ 7,797	561	796	14,811	(4,931)	(3,617)	177
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Dividends declared per share (in dollars per share)	$ 0.455
Balance, beginning of period at Dec. 31, 2019	$ 7,943	561	862	15,199	(5,055)	(3,774)	150
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Change in accrued stock compensation costs			6
Issuance of shares under stock compensation plans and employee stock purchase plans			15			168
Other			(1)
Net income attributable to the Company	1,667			1,642			25
Dividend equivalents declared				(9)
Dividends declared				(930)
Other comprehensive income (loss), net of tax	(93)				(93)
Purchase of treasury shares						0
Net non-controlling interests acquired / (disposed)							(1)
Distributions and other changes							(13)
Balance, end of period at Sep. 30, 2020	$ 8,752	561	882	15,902	(5,148)	(3,606)	161
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Dividends declared per share (in dollars per share)	$ 1.840
Balance, beginning of period at Jun. 30, 2020		561	814	16,060	(5,582)	(3,627)	166
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Change in accrued stock compensation costs			69
Issuance of shares under stock compensation plans and employee stock purchase plans			(1)			21
Other			0
Net income attributable to the Company	$ 320			316			4
Dividend equivalents declared				(3)
Dividends declared				(471)
Other comprehensive income (loss), net of tax	434				434
Purchase of treasury shares						0
Net non-controlling interests acquired / (disposed)							0
Distributions and other changes							(9)
Balance, end of period at Sep. 30, 2020	$ 8,752	$ 561	$ 882	$ 15,902	$ (5,148)	$ (3,606)	$ 161
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Dividends declared per share (in dollars per share)	$ 0.93