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Leases	12 Months Ended
Leases	Dec. 31, 2018
Leases [Abstract]
Leases	LEASES Rent expense was $185 million, $188 million and $197 million in 2018, 2017 and 2016, respectively. Future minimum annual rental payments under noncancellable operating leases for 2019, 2020, 2021, 2022 and 2023 are $127 million, $105 million, $89 million, $61 million and $41 million, respectively, and $77 million for 2024 and thereafter. Future sublease rental income aggregating approximately $1 million will partially offset these commitments.