Consolidated Statement of Changes in Shareholder's Equity - USD ($)	Total	Common Stock	Additional Paid-in Capital	Accumulated Deficit	Accumulated Other Comprehensive Income/(Loss)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Temporary Equity, Carrying Amount, Attributable to Parent	$ 607,000,000
Common Stock, Shares, Outstanding		162,788,000,000
Temporary Equity, Carrying Amount, Attributable to Parent	607,000,000
Beginning Balance at Jun. 30, 2020	2,899,000,000	$ 2,000,000	$ 3,819,000,000	$ (535,000,000)	$ (387,000,000)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Equity offering, sale of common stock,	82,000,000		82,000,000
Shares Issued, Value, Share-based Payment Arrangement, after Forfeiture	0
Stock Issued During Period, Value, Conversion of Convertible Securities	253,000,000	0	253,000,000
Stock-based compensation	30,000,000		30,000,000
Cash paid, in lieu of equity, for tax withholding	(27,000,000)		(27,000,000)
APIC, Share-based Payment Arrangement, ESPP, Increase for Cost Recognition	4,000,000		4,000,000
Dividends, Preferred Stock	13,000,000			13,000,000
Net earnings/(loss)	171,000,000			171,000,000
Other comprehensive income/(loss), net of tax	57,000,000				57,000,000
Ending Balance at Dec. 31, 2020	3,456,000,000	$ 2,000,000	4,161,000,000	(377,000,000)	(330,000,000)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Temporary Equity, Carrying Amount, Period Increase (Decrease)	(248,000,000)
Shares Issued, Shares, Share-based Payment Arrangement, after Forfeiture		790,000,000
Stock Issued During Period, Shares, Conversion of Convertible Securities		5,392,000,000
Temporary Equity, Carrying Amount, Period Increase (Decrease)	(248,000,000)
Equity offering, sale of common stock		1,163,000,000
Stock Issued During Period, Shares, Conversion of Convertible Securities		5,392,000,000
Temporary Equity, Carrying Amount, Attributable to Parent	607,000,000
Common Stock, Shares, Outstanding		164,567,000,000
Temporary Equity, Carrying Amount, Attributable to Parent	607,000,000
Beginning Balance at Sep. 30, 2020	3,072,000,000	$ 2,000,000	3,901,000,000	(461,000,000)	(370,000,000)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stock Issued During Period, Value, Stock Options Exercised	0	0	0
Stock Issued During Period, Value, Conversion of Convertible Securities	253,000,000	0	253,000,000
Stock-based compensation	12,000,000		12,000,000
Cash paid, in lieu of equity, for tax withholding	(7,000,000)		(7,000,000)
APIC, Share-based Payment Arrangement, ESPP, Increase for Cost Recognition	2,000,000		2,000,000
Dividends, Preferred Stock	4,000,000			4,000,000
Net earnings/(loss)	88,000,000			88,000,000
Other comprehensive income/(loss), net of tax	40,000,000				40,000,000
Ending Balance at Dec. 31, 2020	3,456,000,000	$ 2,000,000	4,161,000,000	(377,000,000)	(330,000,000)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Temporary Equity, Carrying Amount, Period Increase (Decrease)	(248,000,000)
Stock Issued During Period, Shares, Conversion of Convertible Securities		5,392,000,000
Temporary Equity, Carrying Amount, Period Increase (Decrease)	(248,000,000)
Stock Issued During Period, Shares, Conversion of Convertible Securities		5,392,000,000
Temporary Equity, Carrying Amount, Attributable to Parent	359,000,000
Common Stock, Shares, Outstanding		170,133,000,000
Temporary Equity, Carrying Amount, Attributable to Parent	359,000,000
Temporary Equity, Carrying Amount, Attributable to Parent	$ 359,000,000
Common Stock, Shares, Outstanding	170,549,341	170,549,000,000
Temporary Equity, Carrying Amount, Attributable to Parent	$ 359,000,000
Beginning Balance at Jun. 30, 2021	3,915,000,000	$ 2,000,000	4,205,000,000	25,000,000	(317,000,000)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Equity offering, sale of common stock,		0
Shares Issued, Value, Share-based Payment Arrangement, after Forfeiture	0
Stock Issued During Period, Value, Conversion of Convertible Securities	362,000,000	0	362,000,000
Stock-based compensation	32,000,000		32,000,000
Cash paid, in lieu of equity, for tax withholding	(9,000,000)		(9,000,000)
APIC, Share-based Payment Arrangement, ESPP, Increase for Cost Recognition	6,000,000		6,000,000
APIC, Share-based Payment Arrangement, Option, Increase for Cost Recognition	19,000,000		19,000,000
Dividends, Preferred Stock	6,000,000			6,000,000
Net earnings/(loss)	190,000,000			190,000,000
Other comprehensive income/(loss), net of tax	(28,000,000)				(28,000,000)
Ending Balance at Dec. 31, 2021	4,481,000,000	$ 2,000,000	4,615,000,000	209,000,000	(345,000,000)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Temporary Equity, Carrying Amount, Period Increase (Decrease)	(359,000,000)
Shares Issued, Shares, Share-based Payment Arrangement, after Forfeiture		683,000,000
Stock Issued During Period, Shares, Conversion of Convertible Securities		7,818,000,000
Temporary Equity, Carrying Amount, Period Increase (Decrease)	(359,000,000)
Stock Issued During Period, Shares, Conversion of Convertible Securities		7,818,000,000
Temporary Equity, Carrying Amount, Attributable to Parent	359,000,000
Common Stock, Shares, Outstanding		171,033,000,000
Temporary Equity, Carrying Amount, Attributable to Parent	359,000,000
Beginning Balance at Sep. 30, 2021	4,021,000,000	$ 2,000,000	4,234,000,000	114,000,000	(329,000,000)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Equity offering, sale of common stock,		0
Shares Issued, Value, Share-based Payment Arrangement, after Forfeiture	0
Stock Issued During Period, Value, Conversion of Convertible Securities	362,000,000	0	362,000,000
Stock-based compensation	11,000,000		11,000,000
Cash paid, in lieu of equity, for tax withholding	(5,000,000)		(5,000,000)
APIC, Share-based Payment Arrangement, ESPP, Increase for Cost Recognition	2,000,000		2,000,000
APIC, Share-based Payment Arrangement, Option, Increase for Cost Recognition	11,000,000		11,000,000
Dividends, Preferred Stock	2,000,000			2,000,000
Net earnings/(loss)	97,000,000			97,000,000
Other comprehensive income/(loss), net of tax	(16,000,000)				(16,000,000)
Ending Balance at Dec. 31, 2021	4,481,000,000	$ 2,000,000	$ 4,615,000,000	$ 209,000,000	$ (345,000,000)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Temporary Equity, Carrying Amount, Period Increase (Decrease)	(359,000,000)
Shares Issued, Shares, Share-based Payment Arrangement, after Forfeiture		199,000,000
Stock Issued During Period, Shares, Conversion of Convertible Securities		7,818,000,000
Temporary Equity, Carrying Amount, Period Increase (Decrease)	(359,000,000)
Stock Issued During Period, Shares, Conversion of Convertible Securities		7,818,000,000
Temporary Equity, Carrying Amount, Attributable to Parent	$ 0
Common Stock, Shares, Outstanding	171,032,640	179,050,000,000
Temporary Equity, Carrying Amount, Attributable to Parent	$ 0