Share-Based Payments (Summary of Stock Option Activity) (Details) $ / shares in Units, shares in Millions, $ in Millions	12 Months Ended
Dec. 31, 2024 USD ($) $ / shares shares
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward]
Options outstanding at beginning of period \| shares	3.0
Options granted \| shares	0.2
Options exercised \| shares	(1.1)
Options forfeited \| shares	0.0
Options outstanding at end of period \| shares	2.1
Options exercisable at the end of the period \| shares	1.6
Options vested and expected to vest at the end of the period \| shares	2.1
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price [Abstract]
Weighted-average exercise price, options outstanding at the beginning of the period \| $ / shares	$ 217
Weighted-average exercise price, options granted \| $ / shares	476
Weighted-average exercise price, options exercised \| $ / shares	163
Weighted-average exercise price, options forfeited \| $ / shares	418
Weighted-average exercise price, options outstanding at the end of the period \| $ / shares	273
Weighted-average exercise price, options exercisable at the end of the period \| $ / shares	230
Weighted-average exercise price, options vested and expected to vest at he end of the period \| $ / shares	$ 273
Weighted-average remaining contractual term, options outstanding at the end of the period, in years	5 years 2 months 12 days
Weighted-average remaining contractual term, options exercisable at the end of the period, in years	4 years 2 months 12 days
Weighted-average remaining contractual term, options vested and expected to vest at the end of the period, in years	5 years 2 months 12 days
Aggregate intrinsic value, options outstanding at the end of the period \| $	$ 524
Aggregate intrinsic value, options exercisable at the end of the period \| $	461
Aggregate intrinsic value, options vested and expected to vest at the end of the period \| $	$ 524

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.

Name:	us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber
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.