Employee Benefit Plans - Schedule of Stock Option Activity (Details) - Stock Options - USD ($) $ / shares in Units, shares in Millions, $ in Millions	12 Months Ended
Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward]
Beginning balance (in shares)	8
Granted (in shares)	2	2	1
Exercised (in shares)	(2)
Cancelled (in shares)	0
Ending balance (in shares)	8	8
Options exercisable (shares)	6
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price [Abstract]
Beginning balance (in dollars per share)	$ 88.01
Granted (in dollars per share)	142.92	$ 120.47	$ 113.48
Exercised (in dollars per share)	72.67
Cancelled (in dollars per share)	126.64
Ending balance (in dollars per share)	99.32	$ 88.01
Options exercisable (in dollars per share)	$ 84.91
Weighted Average Remaining Contractual Term (Years)	3 years 7 months 6 days	3 years 9 months 18 days
Weighted average remaining contractual term, options exercisable	2 years 7 months 6 days
Aggregate intrinsic value	$ 143	$ 464
Aggregate intrinsic value, exercised	107	$ 348	$ 189
Aggregate intrinsic value, options exercisable	$ 142

The number of shares into which fully or partially vested stock options outstanding as of the balance sheet date can be currently converted under the option plan.

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	instant

- Definition

The weighted-average price as of the balance sheet date at which grantees can acquire the shares reserved for issuance on vested portions of options outstanding and currently exercisable under the stock option plan.