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Leases (Tables) | 6 Months Ended
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Jun. 30, 2019
Leases [Abstract] |
Lessee, Operating Lease, Disclosure [Table Text Block] |
(in millions) |  |  |  | June 30, 2019
Assets |  |  |  |
Operating lease assets |  | Other non-current assets |  | $ | 95 |
Total operating lease assets |  |  |  | $ | 95 |
Liabilities |  |  |  |
Current |  |  |  |
Operating lease liabilities |  | Accounts payable and accrued expenses |  | $ | 22 |
Noncurrent |  |  |  |
Operating lease liabilities |  | Other non-current liabilities |  | 71 |
Total operating lease liabilities |  |  |  | $ | 93 |
Lessee, Operating Lease, Liability, Maturity [Table Text Block] | Future minimum operating lease payments at December 31, 2018 were as follows:
(in millions) |
2019 | $ | 24 |
2020 | 21 |
2021 | 15 |
2022 | 13 |
2023 | 10 |
After 2023 | 38 |
Total minimum lease payments | $ | 121 |
(in millions) |  | Operating Leases
2019 (excluding the six months ended June 30, 2019) |  | $ | 11 |
2020 |  | 20 |
2021 |  | 15 |
2022 |  | 12 |
2023 |  | 9 |
After 2023 |  | 39 |
Total (undiscounted) lease payments |  | $ | 106 |
Less: Imputed interest |  | 13 |
Present value of lease liabilities |  | $ | 93 |
Lease term and discount rate [Table Text Block] |
Weighted-average remaining lease term (years) |  |
Operating leases |  | 8 |
Finance leases |  | 3 |
Weighted-average discount rate |  |
Operating leases |  | 2.8 | %
Finance leases |  | 3.3 | %

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- Definition Tabular disclosure of undiscounted cash flows of lessee's operating lease liability. Includes, but is not limited to, reconciliation of undiscounted cash flows to operating lease liability recognized in statement of financial position. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 50 -Paragraph 6 -URI http://asc.fasb.org/extlink&oid=77888426&loc=SL77918701-209980 + Details
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- Definition Tabular disclosure for lessee's operating leases. Includes, but is not limited to, description of lessee's operating lease, existence and terms of renewal or purchase options and escalation clauses, restrictions imposed by lease, such as those concerning dividends, additional debt, and further leasing, rent holidays, rent concessions, or leasehold improvement incentives and unusual provisions or conditions. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 460 -SubTopic 10 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=115931803&loc=d3e12069-110248 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 840 -SubTopic 20 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=77902758&loc=d3e41502-112717 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 840 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=77902758&loc=d3e41499-112717 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 840 -SubTopic 10 -Section 55 -Paragraph 40 -Subparagraph (Note 1,3) -URI http://asc.fasb.org/extlink&oid=82846649&loc=d3e38371-112697 Reference 5: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 840 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=84164451&loc=d3e36991-112694 + Details
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