CONSOLIDATED STATEMENT OF SHAREHOLDERS' EQUITY (UNAUDITED) (Parenthetical) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Statement of Stockholders' Equity [Abstract]
Dividends (in USD per share)	$ 0.62	$ 0.56	$ 1.86	$ 1.68
Currency translation adjustment, net of net investment hedge activity, tax expense (benefit)	$ 21	$ (31)	$ 46	$ (31)
Net actuarial gains and prior service cost, tax expense (benefit)	1	(2)	1	0
Amortization of prior service costs and actuarial losses, tax expense (benefit)	$ 1	$ 0	$ 4	1
Net realized and unrealized gain on cash flow hedges, tax expense (benefit)				$ (18)