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Loss per Share (Narrative) (Details) - USD ($)		3 Months Ended					9 Months Ended
Loss per Share (Narrative) (Details) - USD ($)	Nov. 02, 2026	Sep. 30, 2026	Jun. 30, 2026	Mar. 31, 2026	Dec. 31, 2025	Sep. 30, 2025	Sep. 30, 2026	Sep. 30, 2025	Feb. 28, 2024	Feb. 28, 2022
Earnings Per Share, Basic, by Common Class, Including Two Class Method [Line Items]
Anti-dilutive stock options or restricted stock awards excluded from computation of earnings per share		22,500,000				12,900,000	24,500,000	22,600,000
Dividends paid (in dollars per share)		$ 0.12	$ 0.12	$ 0.12	$ 0.12	$ 0.12	$ 0.36	$ 0.36
Share repurchase program, authorized amount									$ 2,000,000,000.0	$ 1,000,000,000.0
Common stock repurchase		8,900,000				6,800,000	18,300,000	45,600,000
Payments for repurchase of common stock		$ 150,000,000.0				$ 67,900,000	$ 300,000,000.0	$ 415,400,000
Payments for repurchase of common stock, approximate								$ 418,300,000
Cumulative shares repurchased (in shares)		112,500,000					112,500,000
Cumulative payments for repurchase of common stock		$ 1,300,000,000
Subsequent Event
Earnings Per Share, Basic, by Common Class, Including Two Class Method [Line Items]
Dividends paid (in dollars per share)	$ 0.12