Goodwill and Other Intangible Assets (Details) $ in Millions |
12 Months Ended |
|---|---|
|
Dec. 31, 2018
USD ($)
| |
| Goodwill [Roll Forward] | |
| Balance at the beginning of the year | $ 2,371 |
| Effect of exchange rate changes | (18) |
| Balance at the end of the year | 2,353 |
| Ammonia | |
| Goodwill [Roll Forward] | |
| Balance at the beginning of the year | 587 |
| Effect of exchange rate changes | (1) |
| Balance at the end of the year | 586 |
| Granular Urea | |
| Goodwill [Roll Forward] | |
| Balance at the beginning of the year | 829 |
| Effect of exchange rate changes | (1) |
| Balance at the end of the year | 828 |
| UAN | |
| Goodwill [Roll Forward] | |
| Balance at the beginning of the year | 576 |
| Effect of exchange rate changes | 0 |
| Balance at the end of the year | 576 |
| AN | |
| Goodwill [Roll Forward] | |
| Balance at the beginning of the year | 306 |
| Effect of exchange rate changes | (14) |
| Balance at the end of the year | 292 |
| Other | |
| Goodwill [Roll Forward] | |
| Balance at the beginning of the year | 73 |
| Effect of exchange rate changes | (2) |
| Balance at the end of the year | $ 71 |