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Segment Reporting - Total Assets by Segment (Details) - USD ($)
$ in Millions
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Segment Reporting Information [Line Items]      
Total assets $ 67,092 $ 67,810 $ 64,515
Equity method investments      
Segment Reporting Information [Line Items]      
Total assets [1] 5,289 6,036 7,178
Latin America      
Segment Reporting Information [Line Items]      
Total assets [1] 4,106 4,181 4,716
AMEA      
Segment Reporting Information [Line Items]      
Total assets [1] 10,386 9,997 9,740
Europe      
Segment Reporting Information [Line Items]      
Total assets [1] 20,927 21,442 20,354
North America      
Segment Reporting Information [Line Items]      
Total assets [1] 23,321 23,297 21,637
Unallocated assets and adjustments      
Segment Reporting Information [Line Items]      
Total assets [2] $ 3,063 $ 2,857 $ 890
[1] Segment assets do not reflect outstanding intercompany asset balances that have been eliminated at a segment level.
[2] Unallocated assets consist primarily of cash and cash equivalents, deferred income taxes, centrally held property, plant and equipment, prepaid pension assets and derivative financial instrument balances. Final adjustments for jurisdictional netting of deferred tax assets and liabilities is done at a consolidated level.