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Subsequent Event (Details) - USD ($) $ / shares in Units, $ in Millions	3 Months Ended
	Jun. 30, 2022	Mar. 31, 2022	Mar. 31, 2021	Apr. 27, 2022	Apr. 21, 2022	Dec. 31, 2021
Subsequent Event [Line Items]
Loss on debt extinguishment		$ 0	$ (6)
Principal		3,500				$ 3,500
Long-term debt		$ 3,462				3,465
Dividends payable, amount per share (in dollars per share)		$ 0.30
Subsequent Event
Subsequent Event [Line Items]
Dividends payable, amount per share (in dollars per share)				$ 0.40
CF Industries \| Senior notes 3.450% due 2023 \| Senior Notes
Subsequent Event [Line Items]
Principal		$ 500				500
Long-term debt		$ 499				$ 499
CF Industries \| Senior notes 3.450% due 2023 \| Senior Notes \| Subsequent Event
Subsequent Event [Line Items]
Long-term debt					$ 513
Forecast \| CF Industries \| Senior notes 3.450% due 2023 \| Senior Notes
Subsequent Event [Line Items]
Loss on debt extinguishment	$ (8)