Summary of Significant Accounting Policies (Tables)

12 Months Ended

Dec. 31, 2021

Accounting Policies [Abstract]

Schedule of Redeemable Noncontrolling Interests

The following is a rollforward of activities in the Company’s redeemable noncontrolling interests:

	Year Ended December 31
	2021		2020		2019
Balance at beginning of period	$	78	$	196	$	138
Net income attributable to redeemable noncontrolling interests	23		22		27
Other comprehensive (loss) income	(4)		3		(10)
Acquisition and other	—		—		17
Noncontrolling interest tender offer redemption	—		(46)		—
Redemption value remeasurement adjustments	11		10		58
Purchase accounting measurement period adjustments	—		—		(8)
Reclassification of noncontrolling interest to permanent equity	—		(82)		—
Dividends declared to noncontrolling interests	(17)		(25)		(26)
Balance at end of period	$	91	$	78	$	196