Equity and Accumulated Other Comprehensive Income (Loss) - Equity (Details) - USD ($) $ / shares in Units, $ in Millions	6 Months Ended
	Dec. 31, 2022	Sep. 30, 2023	Jun. 30, 2023
Equity [Abstract]
Common Stock, Shares Authorized		1,000,000,000	1,000,000,000
Preferred Stock, Shares Authorized		100,000,000	100,000,000
Preferred Stock, Shares Outstanding		0	0
Stock Issued During Period, Value, Conversion of Convertible Securities	$ (362)
Auction Market Preferred Securities, Stock Series [Line Items]
Preferred Stock, Shares Authorized		100,000,000	100,000,000
Preferred Stock, Par or Stated Value Per Share		$ 0.01	$ 0.01
Preferred Stock, Shares Issued		0	0