Leases	3 Months Ended
	Mar. 31, 2020
Lessee Disclosure [Abstract]
Leases	9.LeasesA previously recorded operating lease was renegotiated in the first quarter of 2020 and the new agreement no longer meets the definition of a lease. At year-end 2019, this agreement had been reported as a right of use asset of $1.3 billion and a lease liability of $1.3 billion in the “Other” operating lease category. The new agreement will be reported as a take-or-pay obligation.