Consolidated Statement of Changes in Shareholders' Equity - USD ($) $ in Millions		Total	Adjustments to adopt new accounting guidance	Adjusted beginning balance	Common stock	Common stock Adjustments to adopt new accounting guidance	Common stock Adjusted beginning balance	Treasury stock	Treasury stock Adjustments to adopt new accounting guidance	Treasury stock Adjusted beginning balance	Profit employed in the business	Profit employed in the business Adjustments to adopt new accounting guidance	Profit employed in the business Adjusted beginning balance	Accumulated other comprehensive income (loss)	Accumulated other comprehensive income (loss) Adjustments to adopt new accounting guidance	Accumulated other comprehensive income (loss) Adjusted beginning balance	Noncontrolling interests	Noncontrolling interests Adjustments to adopt new accounting guidance	Noncontrolling interests Adjusted beginning balance
Balance at Dec. 31, 2019		$ 14,629		$ 14,604	$ 5,935		$ 5,935	$ (24,217)		$ (24,217)	$ 34,437		$ 34,412	$ (1,567)		$ (1,567)	$ 41		$ 41
Balance (Credit losses) at Dec. 31, 2019			$ (25)			$ 0			$ 0			$ (25)			$ 0			$ 0
Increase (Decrease) in Shareholders' Equity
Profit of consolidated and affiliated companies		2,223			0			0			2,218			0			5
Foreign currency translation		106			0			0			0			106			0
Pension and other post retirement benefits		(20)			0			0			0			(20)			0
Derivative financial instruments, net of tax		4			0			0			0			4			0
Available for sale securities		29			0			0			0			29			0
Dividends declared	[1]	1,121			0			0			1,121			0			0
Common shares issued from treasury stock for stock-based compensation		110			(43)			153			0			0			0
Stock-based compensation expense, before tax (in dollars)		169			169			0			0			0			0
Common shares repurchased	[2]	(1,250)			0			(1,250)			0			0			0
Other		140			(143)			1			1			0			1
Balance at Sep. 30, 2020		$ 14,994			6,204			(25,315)			35,508			(1,448)			45
Increase (Decrease) in Shareholders' Equity
Common shares issued, Shares, from treasury stock for stock-based compensation (in shares)		3,271,679
Common shares repurchased (in shares)		10,096,006
Common Stock, Dividends, Per Share, Declared		$ 2.06
Balance at Jun. 30, 2020		$ 13,777			6,120			(25,412)			34,841			(1,815)			43
Increase (Decrease) in Shareholders' Equity
Profit of consolidated and affiliated companies		671			0			0			668			0			3
Foreign currency translation		291			0			0			0			291			0
Pension and other post retirement benefits		(8)			0			0			0			(8)			0
Derivative financial instruments, net of tax		76			0			0			0			76			0
Available for sale securities		8			0			0			0			8			0
Common shares issued from treasury stock for stock-based compensation		120			23			97			0			0			0
Stock-based compensation expense, before tax (in dollars)		55			55			0			0			0			0
Other		4			6			0			(1)			0			(1)
Balance at Sep. 30, 2020		$ 14,994			6,204			(25,315)			35,508			(1,448)			45
Increase (Decrease) in Shareholders' Equity
Common shares issued, Shares, from treasury stock for stock-based compensation (in shares)		1,751,708
Common shares repurchased (in shares)		0
Balance at Dec. 31, 2020		$ 15,378			6,230			(25,178)			35,167			(888)			47
Increase (Decrease) in Shareholders' Equity
Profit of consolidated and affiliated companies		4,373			0			0			4,369			0			4
Foreign currency translation		(490)			0			0			0			(490)			0
Pension and other post retirement benefits		(23)			0			0			0			(23)			0
Derivative financial instruments, net of tax		(19)			0			0			0			(19)			0
Available for sale securities		(20)			0			0			0			(20)			0
Dividends declared	[1]	1,175			0			0			1,175			0			0
Distribution to noncontrolling interests		(4)			0			0			0			0			(4)
Common shares issued from treasury stock for stock-based compensation		122			(70)			192			0			0			0
Stock-based compensation expense, before tax (in dollars)		169			169			0			0			0			0
Common shares repurchased	[2]	(1,622)			0			(1,622)			0			0			0
Other		22			23			0			0			0			(1)
Balance at Sep. 30, 2021		$ 16,695			6,352			(26,608)			38,361			(1,440)			30
Increase (Decrease) in Shareholders' Equity
Common shares issued, Shares, from treasury stock for stock-based compensation (in shares)		3,410,146
Common shares repurchased (in shares)		7,772,393
Common Stock, Dividends, Per Share, Declared		$ 2.14
Noncontrolling Interest, Period Increase (Decrease)		$ (16)			0			0			0			0			(16)
Balance at Jun. 30, 2021		16,880			6,293			(25,240)			36,934			(1,154)			47
Increase (Decrease) in Shareholders' Equity
Profit of consolidated and affiliated companies		1,428			0			0			1,426			0			2
Foreign currency translation		(242)			0			0			0			(242)			0
Pension and other post retirement benefits		(8)			0			0			0			(8)			0
Derivative financial instruments, net of tax		(31)			0			0			0			(31)			0
Available for sale securities		(5)			0			0			0			(5)			0
Dividends declared		1			0			0			1			0			0
Distribution to noncontrolling interests		(2)			0			0			0			0			(2)
Common shares issued from treasury stock for stock-based compensation		(1)			(5)			4			0			0			0
Stock-based compensation expense, before tax (in dollars)		58			58			0			0			0			0
Common shares repurchased	[3]	(1,371)			0			(1,371)			0			0			0
Other		4			6			(1)			0			0			(1)
Balance at Sep. 30, 2021		$ 16,695			6,352			(26,608)			38,361			(1,440)			30
Increase (Decrease) in Shareholders' Equity
Common shares issued, Shares, from treasury stock for stock-based compensation (in shares)		80,571
Common shares repurchased (in shares)		6,610,438
Noncontrolling Interest, Period Increase (Decrease)		$ (16)			$ 0			$ 0			$ 0			$ 0			$ (16)

[1] Dividends per share of common stock of $2.14 and $2.06 were declared in the nine months ended September 30, 2021 and 2020, respectively.

[2] See Note 12 for additional information

[3] See Note 12 for additional information.