CONDENSED CONSOLIDATED STATEMENTS OF CHANGES IN SHAREHOLDERS' EQUITY (Parenthetical) $ in Millions	3 Months Ended				9 Months Ended
	Sep. 30, 2022 USD ($) $ / shares	Mar. 31, 2022 dividend	Sep. 30, 2021 USD ($) $ / shares	Mar. 31, 2021 dividend	Sep. 30, 2022 USD ($) $ / shares	Sep. 30, 2021 USD ($) $ / shares	Jun. 30, 2022 USD ($)	Dec. 31, 2021 USD ($)	Jun. 30, 2021 USD ($)	Dec. 31, 2020 USD ($)
Statement of Stockholders' Equity [Abstract]
Dividends declared per common share (in dollars per share) | $ / shares	$ 0.47		$ 0.45		$ 1.86	$ 1.79
Accumulated other comprehensive loss, cumulative translation losses	$ (3,545)		$ (3,321)		$ (3,545)	$ (3,321)	$ 3,398	$ 3,349	$ 3,207	$ 3,158
Accumulated other comprehensive income (loss), unrecognized retirement plan and other retiree benefit costs	$ 717		$ 1,129		$ 717	$ 1,129	$ 1,015	$ 1,044	$ 1,160	$ 1,178
Number of dividends declared per quarter | dividend		2		2