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, 2019		$ 561	$ 862	$ 15,199	$ (5,055)	$ (3,774)	$ 150
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Change in accrued stock compensation costs			(63)
Issuance of shares under stock compensation plans and employee stock purchase plans			16			147
Other			(1)
Net income attributable to the Company	$ 1,347			1,326			21
Dividend equivalents declared				(6)
Dividends declared				(459)
Other comprehensive income (loss), net of tax	(527)				(527)
Purchase of treasury shares						0
Net non-controlling interests acquired (disposed)							(1)
Distributions and other changes							(4)
Balance, end of period at Jun. 30, 2020	$ 8,392	561	814	16,060	(5,582)	(3,627)	166
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Dividends declared per share (in dollars per share)	$ 0.910
Balance, beginning of period at Mar. 31, 2020		561	746	15,490	(5,847)	(3,655)	156
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Change in accrued stock compensation costs			66
Issuance of shares under stock compensation plans and employee stock purchase plans			2			28
Other			0
Net income attributable to the Company	$ 580			572			8
Dividend equivalents declared				(2)
Dividends declared				0
Other comprehensive income (loss), net of tax	265				265
Purchase of treasury shares						0
Net non-controlling interests acquired (disposed)							2
Distributions and other changes							0
Balance, end of period at Jun. 30, 2020	$ 8,392	561	814	16,060	(5,582)	(3,627)	166
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Dividends declared per share (in dollars per share)	$ 0
Balance, beginning of period at Dec. 31, 2020	$ 9,260	561	943	16,272	(5,110)	(3,562)	156
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Change in accrued stock compensation costs			(48)
Issuance of shares under stock compensation plans and employee stock purchase plans			50			154
Other			0
Net income attributable to the Company	1,825			1,803			22
Dividend equivalents declared				(6)
Dividends declared				(472)
Other comprehensive income (loss), net of tax	(43)				(43)
Purchase of treasury shares	(445)					(434)
Net non-controlling interests acquired (disposed)							0
Distributions and other changes							(22)
Balance, end of period at Jun. 30, 2021	$ 10,264	561	945	17,597	(5,153)	(3,842)	156
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Dividends declared per share (in dollars per share)	$ 0.930
Balance, beginning of period at Mar. 31, 2021		561	851	16,780	(5,197)	(3,561)	162
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Change in accrued stock compensation costs			85
Issuance of shares under stock compensation plans and employee stock purchase plans			9			41
Other			0
Net income attributable to the Company	$ 827			820			7
Dividend equivalents declared				(3)
Dividends declared				0
Other comprehensive income (loss), net of tax	44				44
Purchase of treasury shares						(322)
Net non-controlling interests acquired (disposed)							0
Distributions and other changes							(13)
Balance, end of period at Jun. 30, 2021	$ 10,264	$ 561	$ 945	$ 17,597	$ (5,153)	$ (3,842)	$ 156
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Dividends declared per share (in dollars per share)	$ 0.465