Goodwill and Other Intangible Assets, net (Changes in Goodwill and Net Carrying Amount of Intangible Assets) (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended		12 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022	Dec. 31, 2022
Goodwill [Roll Forward]
Goodwill, beginning of period			$ 5,177	$ 5,177	$ 5,177
Acquisitions			1,613		0
Goodwill, end of period	$ 6,790		6,790		5,177
Intangible Assets [Roll Forward]
Intangible assets, net, beginning of period			12,384	12,306	12,306
Acquisitions			1,410		151
Amortization	(27)	$ (18)	(45)	$ (35)	(73)
Intangible assets, net, end of period	$ 13,749		$ 13,749		$ 12,384