Share-Based Compensation - Share Settled Awards (Details) $ / shares in Units, $ in Millions	9 Months Ended
	Sep. 30, 2022 USD ($) $ / shares shares
Share-Settled RSUs
Nonvested Restricted Shares
Unvested, beginning balance (in shares) | shares	3,117,058
Granted (in shares) | shares	2,520,753
Vested (in shares) | shares	(1,372,513)
Forfeited (in shares) | shares	(153,922)
Unvested, ending balance (in shares) | shares	4,111,376
Weighted Avg. Grant Date Fair Value
Unvested, beginning balance (in dollars per share) | $ / shares	$ 13.94
Granted (in dollars per share) | $ / shares	10.52
Vested (in dollars per share) | $ / shares	17.62
Forfeited (in dollars per share) | $ / shares	12.02
Unvested, ending balance (in dollars per share) | $ / shares	$ 10.41
Unrecognized compensation costs | $	$ 28
Unrecognized compensation costs, not yet recognized	2 years
Share-Settled PSUs
Nonvested Restricted Shares
Unvested, beginning balance (in shares) | shares	328,296
Granted (in shares) | shares	0
Vested (in shares) | shares	(276,316)
Forfeited (in shares) | shares	(51,980)
Unvested, ending balance (in shares) | shares	0
Weighted Avg. Grant Date Fair Value
Unvested, beginning balance (in dollars per share) | $ / shares	$ 24.72
Granted (in dollars per share) | $ / shares	0
Vested (in dollars per share) | $ / shares	24.72
Forfeited (in dollars per share) | $ / shares	24.72
Unvested, ending balance (in dollars per share) | $ / shares	$ 0