Contingencies and commitments - (Tables)

12 Months Ended

Dec. 31, 2019

Commitments and Contingencies Disclosure [Abstract]

U.S. repatriation tax commitments

The following table summarizes the remaining scheduled repatriation tax payments as of December 31, 2019 (in millions):

	Amounts
2020	$	587
2021	587
2022	587
2023	1,100
2024	1,467
Thereafter	1,834
Total remaining U.S. repatriation tax commitments	$	6,162