Equity (Tables)

12 Months Ended

Dec. 31, 2021

Equity [Abstract]

Summary of Common Stock Purchases

The following provides the number of shares of our common stock purchased and the cost of purchases under our publicly announced share purchase plans, including our ASR:
	Year Ended December 31,
(SHARES IN MILLIONS, DOLLARS IN BILLIONS)	2021		2020		2019(a)
Shares of common stock purchased	—		—		213
Cost of purchase	$	—	$	—	$	8.9

(a)Represents shares purchased pursuant to the ASR with Goldman Sachs & Co. LLC entered into in February 2019, as well as open market share repurchases of $2.1 billion.