Condensed Consolidated Statement of Shareholders' Equity (Unaudited) - USD ($) $ in Millions	Total	Total	Common Shares	Retained Earnings	Accumulated Other Comprehensive Income (Loss)	Deferred Equity Compensation	Nonredeemable Noncontrolling Interests
Beginning balance (in shares) at Dec. 31, 2021			67,518,424
Beginning balance at Dec. 31, 2021	$ 6,478	$ 6,292	$ 1	$ 5,990	$ 300	$ 1	$ 186
Increase (Decrease) in Shareholders' Equity
Net income	51	19		19			32
Dividends	(33)	(33)		(33)
Common share repurchases (in shares)			(5,344,170)
Common shares repurchases	(306)	(306)		(306)
Shared based compensation (in shares)			301,485
Share-based compensation	2	2		2
Contributions	40						40
Distributions	(15)						(15)
Other comprehensive income (loss)	(670)	(670)			(670)
Ending balance (in shares) at Jun. 30, 2022			62,475,739
Ending balance at Jun. 30, 2022	5,547	5,304	$ 1	5,672	(370)	1	243
Beginning balance (in shares) at Mar. 31, 2022			65,043,547
Beginning balance at Mar. 31, 2022	5,995	5,802	$ 1	5,878	(78)	1	193
Increase (Decrease) in Shareholders' Equity
Net income	(25)	(47)		(47)			22
Dividends	(16)	(16)		(16)
Common share repurchases (in shares)			(2,605,947)
Common shares repurchases	(151)	(151)		(151)
Shared based compensation (in shares)			38,139
Share-based compensation	8	8		8
Contributions	35						35
Distributions	(7)						(7)
Other comprehensive income (loss)	(292)	(292)			(292)
Ending balance (in shares) at Jun. 30, 2022			62,475,739
Ending balance at Jun. 30, 2022	5,547	5,304	$ 1	5,672	(370)	1	243
Beginning balance (in shares) at Dec. 31, 2022			59,013,040
Beginning balance at Dec. 31, 2022	5,292	5,064	$ 1	5,577	(515)	1	228
Increase (Decrease) in Shareholders' Equity
Net income	223	206		206			17
Dividends	(35)	(35)		(35)
Common share repurchases (in shares)			(490,311)
Common shares repurchases	(26)	(26)		(26)
Shared based compensation (in shares)			327,415
Share-based compensation	10	10		10
Reclassification to liabilities	(16)						(16)
Contributions	20						20
Distributions	(70)						(70)
Other comprehensive income (loss)	57	57			57
Ending balance (in shares) at Jun. 30, 2023			58,850,144
Ending balance at Jun. 30, 2023	5,455	5,276	$ 1	5,732	(458)	1	179
Beginning balance (in shares) at Mar. 31, 2023			59,274,112
Beginning balance at Mar. 31, 2023	5,415	5,220	$ 1	5,638	(420)	1	195
Increase (Decrease) in Shareholders' Equity
Net income	126	125		125			1
Dividends	(17)	(17)		(17)
Common share repurchases (in shares)			(453,942)
Common shares repurchases	(24)	(24)		(24)
Shared based compensation (in shares)			29,974
Share-based compensation	10	10		10
Reclassification to liabilities	(16)						(16)
Contributions	17						17
Distributions	(18)						(18)
Other comprehensive income (loss)	(38)	(38)			(38)
Ending balance (in shares) at Jun. 30, 2023			58,850,144
Ending balance at Jun. 30, 2023	$ 5,455	$ 5,276	$ 1	$ 5,732	$ (458)	$ 1	$ 179