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Share Owners' Equity - Share Repurchase (Details) $ in Millions	3 Months Ended	6 Months Ended
	Jun. 30, 2021 USD ($) shares	Jun. 30, 2021 USD ($) shares
Share Owners' Equity
Shares repurchased	$ 20	$ 20
Shares repurchased (in shares) | shares	1,047,316	1,000,000.0
Stock repurchase plan authorized	$ 150	$ 150
Remaining repurchase of common stock available	$ 130	$ 130

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Number of shares that have been repurchased during the period and are being held in treasury.

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