Shareholders' Equity - Stock Option Activity (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	6 Months Ended	12 Months Ended
	Dec. 31, 2021	Jul. 02, 2021
Number of Shares
Options outstanding, beginning balance (in shares)	1.5
Exercised (in shares)	(0.1)
Canceled or expired (in shares)	(0.4)
Options outstanding, ending balance (in shares)	1.0	1.5
Weighted Average Exercise Price Per Share
Options outstanding, beginning balance, exercise price (in dollars per share)	$ 72.84
Exercised, exercise price (in dollars per share)	43.57
Canceled or expired, exercise price (in dollars per share)	98.85
Options outstanding, ending balance, exercise price (in dollars per share)	$ 66.15	$ 72.84
Options outstanding, weighted average remaining contractual term	1 year	1 year 2 months 12 days
Aggregate Intrinsic Value
Options outstanding, beginning balance, intrinsic value	$ 15
Exercised, intrinsic value	2
Options outstanding, ending balance, intrinsic value	$ 9	$ 15